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Sudoku: hard sheet 639

4 puzzles on one page and the answers on the next. Every sheet number from 1 to 999 has its own puzzles.

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Sudoku

Hard · Sheet 639 · 9×9
Owlpuzzlesowlpuzzles.com
  • Write 1 to 9 so every row, column and 3×3 box holds each number once.
1
246763974828614327596291713
2
1893565148462793641345284712
3
28198125961585712647327439495
4
743858491672937736627151269
Answers on the next page.More free sheets: owlpuzzles.com/printable-logic-puzzles

Answers

Sudoku · Hard · Sheet 639
Owlpuzzlesowlpuzzles.com
1
312457689769823145845196273574638912986512437231749568198365724653274891427981356
2
764912538928735416513468729456391872872654391391287654689173245235849167147526983
3
652347981978162435341895627124589763865473192739216854517938246286754319493621578
4
756184293139762845284359671367521984928436157415978362693245718571893426842617539