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Pages: 128, Paperback, Independently published
Prices were last updated on: 18-06-2026, 00:34
Independently Published
Impossible Sudoku: 200 ridiculously difficult puzzles
Impossible Sudoku III: 200 more absurdly challenging puzzles
CREATESPACE
Difficult Sudoku Book: 200 Puzzles
Impossible Sudoku: Extremely Difficult Puzzles for Elite Solvers
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