id stringlengths 29 29 | question_interleave listlengths 2 2 | question_images images listlengths 1 1 | solution_interleave listlengths 2 10 | solution_images images listlengths 1 5 | answer stringclasses 31
values | options stringclasses 0
values | knowledge stringclasses 1
value | subknowledge stringclasses 1
value |
|---|---|---|---|---|---|---|---|---|
formboard_level_1_puzzle_0001 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an entirely empty square silhouette. Piece E is a large square whose dimensions perfectly match the bounds of this open region. Placing piece E fills the entire space at once, completing the puzzle.</think>\nE",
"index": 0,
"type": "text"
},
{
"content":... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0002 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty square silhouette. Piece D is a large square with side lengths and right angles that exactly match the full target area. Placing Piece D perfectly fills the entire open region at once, leaving no empty space and completing the puzzle.</think>\nD",
... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0003 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an completely empty, L-shaped silhouette. Piece C is a large L-shaped polygon that matches the exact dimensions, proportions, and right angles of this entire boundary. Placing piece C will perfectly fill the available space, directly completing the silhouette.</think>\n... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0004 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms a large T-shape with strictly right-angled corners. Piece C exactly matches the overall dimensions and contour of this entire region. Placing it fills the board completely in a single step.</think>\nC",
"index": 0,
"type": "text"
},
{
"content": "i... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0005 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The entirely empty target silhouette forms a symmetrical cross with straight edges and 90-degree angles. Piece E perfectly matches this geometry, possessing identical horizontal and vertical arms. Placing Piece E exactly fills the open region, completing the puzzle.</think>\nE",
"index"... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0006 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms a large C-shape with uniform straight edges and right angles. Piece A perfectly matches these dimensions, including the specific arm lengths and the inner rectangular cutout. Because Piece A corresponds exactly to the full boundary of the silhouette, placing it co... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0007 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current empty silhouette is a large trapezoid characterized by a tall vertical left edge, a shorter vertical right edge, and tapering top and bottom boundaries. Piece C possesses exactly these same dimensions and angles, making it a perfect match for the entire space. Placing Piece C co... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0008 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>Piece D precisely matches the size and polygonal shape of the entire empty silhouette. Its five edges and internal angles correspond exactly to the board's outer boundaries. Placing this piece completely fills the open region, finishing the puzzle in a single step.</think>\nD",
"index":... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0009 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an empty silhouette that exactly matches the contour of piece B, featuring a distinct L-shape with a double stair-step profile on the inner right side. Placing piece B entirely fills this open region perfectly. This single placement completes the entire puzzle, requirin... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0010 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is completely empty, showing the full target silhouette. Piece C has the exact same overall shape, consisting of a rectangular base and a tapered roof with a flat top. Placing Piece C fills the entire board perfectly in one step, leaving no remaining empty regions.</think>... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0011 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The completely empty silhouette forms a large diamond shape. Piece D is a large diamond that corresponds precisely to the exact dimensions and boundary angles of this open area. Placing piece D perfectly fills the entire region, leaving no remaining empty space and completing the puzzle.</t... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0012 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current open region is the completely empty, regular hexagon silhouette. Piece A is a single regular hexagon that perfectly matches the dimensions and angles of this entire space. Placing it fills the board completely, resolving the puzzle without the need for any other pieces.</think>\... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0013 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current silhouette is completely empty and forms a large square. Piece C is exactly the same shape and size as this square opening, so placing it fills the entire area perfectly and completes the puzzle.</think>\nC",
"index": 0,
"type": "text"
},
{
"content": "images/for... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0014 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty square silhouette. Piece D is a large square that perfectly matches the dimensions and 90-degree corners of this target shape. Placing D fills the entire available area at once, leaving no remaining space and completing the puzzle.</think>\nD",
"i... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0015 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current empty silhouette is an L-shape featuring only right angles and straight edges. Piece C perfectly matches these exact dimensions and perpendicular corners. Placing Piece C entirely fills the available space, completing the silhouette.</think>\nC",
"index": 0,
"type": "tex... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0016 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The open region is completely empty and forms a simple T-shaped silhouette with strictly orthogonal corners. Piece A matches exactly these proportions and right-angled structure. Placing Piece A perfectly fills the entire available area, completing the puzzle in a single step.</think>\nA",
... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0017 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms a complete, continuous cross shape. Piece B exactly matches the full proportions and dimensions of this entire region. Placing it perfectly fills the board, completing the puzzle in a single step.</think>\nB",
"index": 0,
"type": "text"
},
{
"conte... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0018 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents a completely empty C-shaped target silhouette with right-angled corners. Piece B is a single C-shaped piece that exactly matches the dimensions and orthogonal geometry of this entire open area. Placing Piece B fully occupies the silhouette, completing the puzzle i... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0019 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an completely empty quadrilateral silhouette with a tall vertical left edge and tapering rightward. Piece C is an identically shaped quadrilateral that precisely matches these edge lengths and internal angles. Placing piece C perfectly fills the entire region, completin... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0020 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is completely empty, leaving the full irregular pentagonal silhouette available. Piece E matches the exact shape, size, and interior angles of this entire target boundary. Placing Piece E perfectly fills the open region and completes the puzzle.</think>\nE",
"index": 0... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0021 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state is completely empty, displaying the full outline of the target silhouette with its distinctive double-stepped right edge. Piece D has the exact same overall geometry, perfectly matching all dimensions, right angles, and proportions of this empty space. Placing pie... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0022 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is entirely empty, presenting the complete boundary of the target silhouette. Piece E possesses the exact same dimensions, angles, and overall contour as this full outline. Placing Piece E perfectly covers the entire region, leaving no empty space and immediately completin... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0023 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current open region is completely empty, presenting a large diamond-shaped silhouette. Piece E is a single diamond that perfectly matches the exact dimensions and angles of this entire outline. Placing Piece E fills the available space entirely, completing the puzzle with no remaining g... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0024 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is currently a completely empty hexagon. Piece E is a single large hexagon whose six sides and internal angles perfectly match the full target boundary. Inserting E fills the entirety of the open space, completing the silhouette.</think>\nE",
"index": 0,
"type"... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0025 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty square silhouette. Piece E is a large square that exactly matches the overall dimensions and right angles of this open region. Placing Piece E entirely fills the available space, completing the silhouette in a single step.</think>\nE",
"index": 0,... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0026 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty square silhouette. Piece D is a square whose dimensions and four right angles perfectly match the target region's boundaries. Placing piece D fully occupies the silhouette, leaving no empty space and completing the puzzle.</think>\nD",
"index": 0,... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0027 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty target silhouette is an L-shape that perfectly matches the contours and overall dimensions of piece A. Placing piece A into this region completely fills the open area at once. Since this placement leaves no remaining empty space, it immediately solves the puzzle.</think>\nA",
... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0028 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state is an entirely empty T-shaped silhouette. Piece A has the exact size and proportions to fit this entire outline, perfectly aligning with both the long horizontal arm and the tall vertical section. Since Piece A matches the target region completely, this single pla... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0029 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The entirely empty board is a large cross shape that exactly matches the dimensions and orthogonal arms of piece E. Placing piece E fills the entire open region in a single move, perfectly aligning with all outer boundaries and completing the silhouette.</think>\nE",
"index": 0,
"ty... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0030 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an entirely empty C-shaped silhouette. Piece D is a large C-shape that perfectly matches the full dimensions and right-angled corners of this target area. Placing piece D completely fills the open region in a single step, finishing the puzzle.</think>\nD",
"index": ... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0031 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms a large quadrilateral characterized by a long vertical left edge, a shorter vertical right edge, and top and bottom edges that taper towards the right. Piece D perfectly matches this exact geometry and overall size. Placing piece D directly into the board complete... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0032 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty pentagonal silhouette. Piece B matches the exact shape and overall dimensions of this boundary, notably sharing the vertical right edge and the distinctive pointed vertices on the left and bottom. Placing Piece B perfectly fills the entire available s... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0033 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current silhouette is completely empty and forms a distinct multi-stepped boundary. Piece A matches the precise overall dimensions and shape of this target area perfectly. Placing Piece A covers the entire board in one step, leaving no remaining empty space and completing the puzzle.</t... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0034 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state is completely empty, leaving the entire upward-pointing arrow silhouette open. Piece E perfectly matches the outline, angles, and overall dimensions of this empty space. Placing Piece E directly into the board will completely fill the silhouette in a single step.<... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0035 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents a completely empty, large diamond-shaped silhouette. Piece E is a single diamond that identically matches the dimensions and angles of this entire open region. Placing Piece E perfectly fills the board in one step, completing the assembly.</think>\nE",
"index"... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0036 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents an entirely empty, regular hexagonal silhouette. Piece B is a solid hexagon that precisely matches the six edge lengths and interior angles of this open region. Placing Piece B directly fills the entire available area, immediately completing the puzzle.</think>\nB... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0037 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is entirely empty and forms a perfect square boundary. Piece C is a large square that exactly matches the full dimensions of this shape. Placing piece C perfectly fills the entire board, completing the puzzle in one step.</think>\nC",
"index": 0,
"type": "text"... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0038 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>Piece D is a solid square that completely matches the right angles, equal side lengths, and overall shape of the empty target silhouette. Placing it entirely fills the open board, leaving no remaining empty space and immediately completing the puzzle.</think>\nD",
"index": 0,
"type"... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0039 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms an L-shape with exclusively right angles. Piece B has the exact matching L-shaped geometry and arm proportions to fit perfectly into this space. Placing Piece B completely fills the entire area, successfully completing the puzzle in a single step.</think>\nB",
... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0040 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The open region is a completely empty T-shaped silhouette. Piece E is a single, large T-shaped piece with proportions that exactly match the entire board. Placing piece E covers the full area perfectly, completing the puzzle in one step without leaving any remaining gaps.</think>\nE",
"... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0041 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an entirely empty, symmetric cross-shaped silhouette. Piece A has identical proportions, featuring the exact same arm lengths and orthogonal angles. Placing Piece A perfectly covers the entire board, completing the silhouette in a single step.</think>\nA",
"index": ... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0042 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents a completely empty, orthogonal C-shaped silhouette. Piece D is a single, large C-shaped block that perfectly matches the dimensions, inner corners, and outer boundaries of this target area, completing the puzzle in one step.</think>\nD",
"index": 0,
"type"... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0043 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents a completely empty, irregular trapezoidal silhouette. Piece E perfectly matches the dimensions, angles, and overall proportions of this entire boundary. Placing piece E fills the space completely, leaving no remaining regions.</think>\nE",
"index": 0,
"typ... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0044 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty, five-sided silhouette. Piece D precisely matches the full dimensions, interior angles, and edge lengths of this target boundary. Placing piece D fills the entire open region at once, directly completing the puzzle.</think>\nD",
"index": 0,
"t... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0045 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state is a completely empty board. Piece E possesses the exact same overall dimensions and stepped contour as the target silhouette. Placing Piece E aligns with all outer boundaries perfectly and completely fills the empty area.</think>\nE",
"index": 0,
"type": ... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0046 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents a completely empty silhouette. Piece E identically matches the overall dimensions, exterior angles, and complete boundary of this open region. Placing Piece E perfectly covers the entire area in a single step, completing the puzzle.</think>\nE",
"index": 0,
... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0047 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an entirely empty diamond-shaped silhouette. Piece C is a large diamond that perfectly matches the dimensions, angles, and overall shape of this target boundary. Placing piece C fills the entire open region at once, completing the puzzle without needing any other pieces... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0048 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state shows the target silhouette is completely empty and forms a regular hexagon. Piece B perfectly matches the dimensions and internal angles of this entire open boundary. Placing Piece B completely fills the board leaving no remaining gaps, thus completing the puzzle.</think>... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0049 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state shows a completely empty square silhouette. Piece D is a large square whose shape and dimensions perfectly match this open boundary. Placing piece D completely fills the frame in a single step, successfully completing the puzzle.</think>\nD",
"index": 0,
"... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0050 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is a large open square. Piece B is a square that exactly matches the dimensions of the entire empty board. Placing it completely fills the target area in a single step, cleanly solving the puzzle.</think>\nB",
"index": 0,
"type": "text"
},
{
"content": ... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0051 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty L-shaped silhouette features right angles at every corner and specific width-to-height proportions. Piece E identically matches this complete geometry, allowing it to perfectly fill the entire open area in a single step and complete the puzzle.</think>\nE",
"index": 0,
"ty... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0052 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is the completely empty T-shaped silhouette. Piece B perfectly matches both the overall dimensions and the specific T-shape of this open area. Placing it will completely fill the board in a single step.</think>\nB",
"index": 0,
"type": "text"
},
{
"content"... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0053 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The completely open board forms a symmetric cross shape that precisely matches the dimensions of piece B. Placing piece B fills the entire area perfectly, completing the silhouette with no remaining gaps.</think>\nB",
"index": 0,
"type": "text"
},
{
"content": "images/formbo... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0054 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The completely empty state presents a large C-shaped silhouette with right-angled corners. Piece A perfectly matches the dimensions, thickness, and angles of this entire region. Placing Piece A directly fills the board, completing the assembly in a single step.</think>\nA",
"index": 0,
... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0055 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents a completely empty quadrilateral silhouette with a tall vertical left edge, slanted top and bottom edges, and a shorter right edge. Piece D is a quadrilateral that exactly matches these overall dimensions and angles. Placing piece D completely fills the target are... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0056 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>Piece C perfectly matches the exact size and geometric outline of the empty target silhouette. Its vertical right edge, pointed left vertex, and sharply angled top and bottom edges correspond flawlessly to the board's outer boundaries. Placing this piece completely fills the entire area, re... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0057 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is completely empty. Comparing the available pieces to the board, Piece D shares the exact F-like polygonal boundary, including all right angles and stepped edges. Placing Piece D perfectly fills the entire available area, completing the silhouette with no remaining ga... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0058 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>Piece D has the exact same size and complex contour as the full empty silhouette, matching its vertical walls, horizontal eaves, slanted roof, and flat top. Placing it perfectly aligns with all boundary edges of the available space. This single placement completely fills the target area, le... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0059 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents a completely empty diamond-shaped board. Piece C shares the exact same proportions, angles, and size as this target silhouette. Placing Piece C perfectly fills the available space, directly completing the puzzle in a single step.</think>\nC",
"index": 0,
"... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0060 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>Piece C is a regular hexagon whose edges and angles identically match the perimeter of the completely empty silhouette. Because its dimensions precisely correspond to the target board, placing it fills the entire available space and completes the puzzle instantly.</think>\nC",
"index": ... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0061 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The silhouette presents an empty, large square region. Piece B is a large square that exactly matches the dimensions and right angles of this opening. Placing piece B fully occupies the target area, completely solving the puzzle with no remaining gaps.</think>\nB",
"index": 0,
"type... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0062 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state features a completely empty square silhouette. Piece E is a large square whose dimensions exactly match the entire target area. Placing E perfectly aligns with all four straight edges and right angles, completing the puzzle in a single move.</think>\nE",
"index": 0,
... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0063 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty board consists of a single L-shaped silhouette. Piece D shares the exact same L-shaped geometry and dimensions. Placing piece D completely fills the open region, resolving the puzzle in a single move.</think>\nD",
"index": 0,
"type": "text"
},
{
"content": "images/... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0064 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms a T-shape with a tall vertical section and a horizontal arm extending to the left. Piece B exactly matches this outline and dimensions. Placing Piece B perfectly fills the entire area, completing the puzzle.</think>\nB",
"index": 0,
"type": "text"
},
{... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0065 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms a perfectly symmetric cross. Piece C has the exact matching dimensions and right angles to fill this entire boundary. Placing Piece C fully occupies the board in a single step, completing the silhouette.</think>\nC",
"index": 0,
"type": "text"
},
{
... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0066 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>Piece E is a large C-shaped polygon that perfectly matches the dimensions and right-angled corners of the empty silhouette. Placing it completely fills the target area, finishing the puzzle in a single step.</think>\nE",
"index": 0,
"type": "text"
},
{
"content": "images/for... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0067 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The entire open region forms a single trapezoidal shape with a tall vertical left edge and a shorter vertical right edge. Piece A perfectly matches these dimensions and boundary angles. Placing Piece A entirely fills the available space, completing the silhouette in one step.</think>\nA",
... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0068 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The silhouette is completely empty, and its overall outline perfectly matches the shape and dimensions of piece C. Placing piece C directly fills the entire target boundary, completing the puzzle in a single step.</think>\nC",
"index": 0,
"type": "text"
},
{
"content": "imag... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0069 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state is entirely empty, leaving the full stepped silhouette available. Piece B exactly matches the complete size and unique geometric profile of this target region, including the long straight edges and the two distinct inward steps on the right side. Placing Piece B d... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0070 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is completely empty, presenting the full silhouette of a flat-topped arrow. Piece A exactly matches the complete shape, size, and flat-top contours of the target board. Placing Piece A perfectly fills the entire open region, completing the puzzle in a single step.</think>\... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0071 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an empty silhouette forming a large square oriented as a diamond. Piece A perfectly matches the dimensions and angles of this entire open area. Placing Piece A fills the board completely, finishing the assembly with no remaining empty space.</think>\nA",
"index": 0,... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0072 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty, regular hexagonal silhouette. Piece C is a regular hexagon of the exact same size and proportions, making it a perfect match for all the boundary edges and angles. Placing Piece C fills the silhouette completely, successfully completing the puzzle wi... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0073 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state presents an entirely empty, square-shaped target silhouette. Piece B is a solid square that perfectly corresponds to the dimensions and right angles of this open boundary. Inserting piece B completely fills the available region, successfully finishing the puzzle i... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0074 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is an entirely empty square. Piece E is a large square that matches the exact dimensions of this boundary. Placing Piece E completely fills the entire available space, completing the puzzle.</think>\nE",
"index": 0,
"type": "text"
},
{
"content": "image... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0075 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state shows an completely empty L-shaped silhouette with exclusively right-angled corners. Comparing the overall proportions and geometry of the open region to the available candidates reveals that piece A has the exact same profile. Placing piece A fully fills the board, comple... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0076 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette forms a sideways T-shape with all right angles. This outline exactly matches the dimensions and profile of Piece B. Placing this piece entirely fills the open region, completing the puzzle.</think>\nB",
"index": 0,
"type": "text"
},
{
"content": "images/... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0077 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is completely empty and forms a cross shape with extended horizontal arms. Piece C perfectly matches this exact geometry and arm proportions. Placing Piece C completely fills the open board, completing the silhouette in a single step.</think>\nC",
"index": 0,
"... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0078 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is completely empty. Piece E exactly matches the overall C-shape boundary in both size and angles. Placing it completely fills the open region, finishing the puzzle in a single step.</think>\nE",
"index": 0,
"type": "text"
},
{
"content": "images/formbo... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0079 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is a quadrilateral with vertical left and right sides and angled top and bottom edges. Piece B possesses the exact same dimensions and angles as this entire outline. Placing Piece B perfectly covers the entire open area, completing the silhouette in a single step.</thi... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0080 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state consists of the entirely empty target silhouette. Piece A perfectly matches the dimensions, angles, and overall pentagonal shape of this boundary. Placing piece A fully occupies the available area, leaving no remaining empty space and completing the puzzle.</think>\nA",
... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0081 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state is entirely empty, displaying the full stepped outline of the target board. Piece D has the exact same stepped profile and dimensions as this entire boundary. Therefore, placing piece D perfectly fills the available space, completing the silhouette in a single ste... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0082 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is a completely empty silhouette shaped like an upward-pointing arrow. Piece E matches the exact dimensions and outline of this target region. Placing piece E fills the entire board perfectly, completing the puzzle in a single step without leaving any remaining space to fi... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0083 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is entirely empty and forms a large diamond shape. Piece C is a large diamond that exactly matches the dimensions of the entire outline. Placing Piece C fills the silhouette completely in a single step, requiring no further pieces.</think>\nC",
"index": 0,
"typ... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0084 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state provides an completely empty regular hexagonal silhouette. Piece A is a large solid hexagon that perfectly matches the dimensions, angles, and full boundary of the target space. Placing Piece A exactly aligns with all six outer edges, completely filling the open region and... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0085 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The target silhouette is an entirely empty square. Piece C is a single square block that perfectly matches the side lengths and right angles of this full boundary. Placing C completely fills the area, resolving the puzzle without leaving any leftover space.</think>\nC",
"index": 0,
... | C | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0086 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state features a completely empty square silhouette. Piece B is a large square whose dimensions and right angles perfectly match the entire open area. Placing Piece B fills the board entirely, leaving no remaining empty space and instantly completing the silhouette.</think>\nB",... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0087 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The open silhouette is a single, continuous L-shaped area defined by straight, orthogonal edges. Piece B precisely matches these overall dimensions, right angles, and specific arm lengths. Inserting Piece B perfectly fills the entire available space and completes the puzzle.</think>\nB",
... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0088 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The entire sideways T-shaped silhouette is currently empty. Piece A is identical in shape and dimensions to this full outline, allowing it to perfectly fill the space. Since it covers the entire target region, placing Piece A immediately completes the puzzle.</think>\nA",
"index": 0,
... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0089 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The puzzle board is currently completely empty, revealing a single cross-shaped silhouette. Piece B features the exact matching geometry, with a longer horizontal span and a shorter vertical span that align perfectly with the board's outer boundaries. Placing piece B fills the entire open r... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0090 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state presents an entirely empty C-shaped silhouette. Piece E perfectly corresponds to the size, proportions, and right-angled corners of this complete target shape. Placing piece E instantly fills the entire open region, successfully completing the puzzle without leavi... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0091 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The empty silhouette features a tall vertical left edge, a shorter vertical right edge, and angled top and bottom boundaries. Piece A precisely matches these exact dimensions and corner angles. Placing Piece A entirely fills the available space in one step, leaving no remainder and successf... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0092 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state consists of a completely empty silhouette forming a distinct pentagonal outline. Piece D possesses the exact same perimeter shape, including the straight vertical edge on the right and the specific angled sides on the left. Placing Piece D perfectly fills this entire void,... | D | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0093 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>Piece B perfectly matches the entire outline of the empty target silhouette. Its vertical left edge, horizontal top edge, and stepped right-side profile align exactly with the board's dimensions and inner corners. Since placing this single piece completely fills the open region, no space re... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0094 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current assembly state is completely empty, leaving the entire arrow-shaped silhouette open. Piece E perfectly matches the full boundary, width, and angled tip of this silhouette. Placing Piece E completely fills the available area, resolving the puzzle in a single step with no remainin... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0095 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is completely empty, presenting a single large diamond-shaped silhouette. Piece B is a large turquoise diamond whose angles and side lengths exactly match the boundaries of the full target area. Placing piece B directly into this space perfectly fills the entire region, im... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0096 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents an empty regular hexagon as the target silhouette. Piece A is identically shaped and sized to this boundary, meaning its edges and angles perfectly align with the entire perimeter. Placing piece A completely fills the silhouette in a single step, leaving no remain... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0097 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state is an entirely empty square silhouette. Examining the available shapes, Piece B is a large square that precisely matches the full dimensions of this empty region. Inserting Piece B perfectly fills the entire board, completing the puzzle in a single step.</think>\nB",
"... | B | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0098 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The silhouette presents a completely empty, large square boundary. Piece A is a large square that exactly matches these dimensions, allowing it to perfectly fill the entire open area. This single placement occupies all available space, immediately completing the puzzle.</think>\nA",
"in... | A | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0099 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state shows an completely empty L-shaped silhouette with right angles and a wide base. Piece E is an identically proportioned L-shaped polygon that perfectly matches the dimensions of this entire open area. Placing piece E will completely fill the silhouette, successfully comple... | E | null | FormBoard | FormBoard | ||
formboard_level_1_puzzle_0100 | [
{
"content": "Look at the image. It shows, from left to right, a target shape outlined in black and 5 pieces labeled A through E in various colors. Determine the subset of pieces from {A, B, C, D, E} necessary to assemble the target shape. Some pieces are distractors and are not needed. Pieces are shown in thei... | [
{
"content": "<think>The current state presents an empty T-shaped silhouette with specific stem width and length proportions. Piece A exactly matches the dimensions, orthogonal lines, and right angles of this entire open region. Placing Piece A perfectly fills the board and completes the puzzle.</think>\nA",
... | A | null | FormBoard | FormBoard |
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