Puzzles
My original puzzles, etc.
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Sugar / Copris
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Puzzle Solver Programs
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Crafts (in Japanese)
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Puzzroom (in Japanese)
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Prime Number Rulers
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OEIS: A227956
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See also tags: puzzle
My original puzzles, etc.
Sugar / Copris
Puzzle Solver Programs
Crafts (in Japanese)
Puzzroom (in Japanese)
Prime Number Rulers
OEIS: A227956
See also tags: puzzle