Brain Workouts: 500 Medium Logic Puzzles (Suguru, Masyu, Arrows, Mathrax, Minesweeper, Straights, No Four in a row, Sudoku, Sutoreto, Kuromasu, Grand Tour and Creek)
(Activity Book, #9)
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Brain Workouts: 500 Medium Logic Puzzles (Suguru, Masyu, Arrows, Mathrax, Minesweeper, Straights, No Four in a row, Sudoku, Sutoreto, Kuromasu, Grand Tour and Creek)
(Activity Book, #9)
