Gattai-Sudoku... what now? ?Simply put, gattai is a Japanese word meaning 'merged' or 'fused'.So these puzzles consist of two overlapping sudoku puzzles, or three, or four, or five.Other names for them are Twin, Triplet, Sohei and Samurai.Whatever you call them, these 100 original gattai-sudokus are twisty and challenging and a whole lot of fun Check out our other puzzle books - Sudoku, Sudoku Large Print and Suguru - as well as our ever-growing range of coloring books.
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