Genius-Level Sudoku: Over 300 Super-Difficult Puzzles from the Japanese Masters
15,58 €
Extra tricky. Extra tough. It's the sudoku collection that's not for the faint of heart. But keep going. You'll solve it eventually. you genius!Can't get enough?. Our hardest-yet Sudoku collection, handcrafted by the puzzle masters at Nikoli in Japan (whose Workman Sudoku books have 1.3 million copies in print combined).
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