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Suguru Puzzles - 200 Hard to Expert 5x5 vol.2
Suguru Puzzles - 200 Hard to Expert 5x5 vol.2
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Suguru, also known as Tectonics or Number Blocks, is a Japanese puzzle invented by Naoki Inaba. The goal is to fill a given rectangular grid with numbers, so that every designated area contains a sequence of non-repeating, consecutive numbers, starting from 1 and going up. Also, adjacent (touching) cells should not contain the same number, even diagonally.