Sudoku: 1500 Very Hard Puzzles: To Exercise Your Brain. Big Book, Great Value. Brain Gym Series Book. Authored By Jared Frost By Frost, Jared By Thriftbooks
Sudoku: 1500 Very Hard Puzzles: To Exercise Your Brain. Big Book, Great Value. Brain Gym Series Book. Authored By Jared Frost By Frost, Jared By Thriftbooks