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Harmony Squares Sudoku by Sureshot Books Publishing LLC. Author Sureshot Books Publishing LLC. Publisher Sureshot Books Publishing LLC. Sharpen your problem-solving skills by filling in numbers from 1 to 9, ensuring each row, column, and box contains every digit exactly once.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.