200 puzzles in a handy pocket-sized pad on a sprial
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 varying difficulty (100 medium, 75 hard, 25 expert), our pocket-sized notepads teamd with a pencil are perfect for strategizing on the bus or train. Now that's what we call a smart calculation!
153 x 86mm, 252pp
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