Exercises
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Reciprocation |
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Huntington-Hill method |
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Copycat |
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Three test tubes |
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Alberti cipher |
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Mangarevan counting |
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On the origins of chess |
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Antimagic squares |
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Triton City |
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Tic-tac-toe |
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Imperial system |
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Cryptex |
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Mountain climbers |
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And now for something completely upside down |
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Friday the 13th |
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Beaufort |
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Grille |
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Birthstones |
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Dr. Eureka |
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Skulduggery |
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Chika's test |
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Olympics |
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Self-describing numbers |
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Route |
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Changing gender |
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Necklace |
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Minesweeper |
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The last banana |
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Run-length encoding |
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Yearbook |
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