Includes 5 easy puzzles, 30 mild puzzles, 5 'Alpha Doku' letter puzzles, 40 difficult puzzles, 20 fiendish puzzles. For those still in the dark, Su Doku...
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It is not just adults who are going nutty over Sudoku. Children are going crazy for the number-placing puzzles, and this is a collection of 150 puzzles...
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