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The Little Book of Sudoku will entice the novice, enthrall the casual player, and tax the expert. Above all, the book will not only test a reader's skills, but

201 fiendishly difficult puzzles in five excruciatingly advanced levels, for the really skilled and dedicated Sudoku fan. The super difficult puzzles inside wil

Edited by crossword great Shortz, this beautiful book offers 400 easy-to-hard puzzles in a convenient portable size, perfect for carrying in a purse, briefcase,

Smart, addictive, challenging, fun, and good for the brain—here, in the irresistible 4" x 6" games format, are more than 450 truly satisfying, mind-expanding,

Number puzzles, spatial/visual puzzles, cryptograms, Sudoku, Kokuro, logic puzzles, and word games like Frame Games are all a great way to teach math and proble