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This addictive logic-based game from Japan involves numbers, and sharpens your concentration and reasoning, but requires no mathematical skills to play. Filled with 200 grids of …
Do you Sudoku? This addictive logic-based game from Japan involves numbers, and sharpens your concentration and reasoning, but requires no mathematical skills to play. Filled with …
Perfect for sharpening concentration and reasoning skills, here are 200 all-new Sudoku puzzles that build in difficulty level from hard to very challenging. A musthave for every …
This handy pocket-sized pad includes 200 all-new sudoku puzzles ranging in difficulty from very challenging to EXTREMELY difficult.