Polyominoes
Heptomino
Hexomino
Pentomino
Tetromino
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6 x 10 - 2339 sol. |
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5 x 12 - 1010 sol. |
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4 x 15 - 368 sol. |
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3 x 20 - 2 sol. |
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8 x 8 - 4 - 65 sol. |
The 369 octominoes by Michael Keller