Favorite Sudoku and Crossword Puzzles Book for Kids. Look for additional adult puzzle books and sudoku books for adults from for all types of puzzles including crosswords, word searches, No need to stop the puzzle fun with Big Book of Sudoku Volume I! Sharpen your mind and practice deductive reasoning with this second volume of sudoku puzzles for adults, including more than 540 challenges across four difficulty levels: Warm-Up, Challenging, and...
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