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501 Really Hard Sudoku Puzzles
501 Really Hard Sudoku Puzzles
Author: Louise Jones
Sudoku puzzles are a tantalizing challenge - and an excellent way to develop and utilize your logical thinking skills. This publication presents 501 really hard 9 x 9 Sudoku puzzles. The first 450 are traditional puzzles with the numbers 1 through 9. The final 51 puzzles are an extreme challenge because they contain letters, symbols, and var...  more »
ISBN-13: 9781933819884
ISBN-10: 193381988X
Publication Date: 12/10/2015
Pages: 136
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Publisher: Magnificent Milestones, Incorporated
Book Type: Paperback
Members Wishing: 0
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