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Sudoku: hard sheet 681

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 681 · 9×9
Owlpuzzlesowlpuzzles.com
  • Write 1 to 9 so every row, column and 3×3 box holds each number once.
1
9874266197812437943587486712
2
143921855114273889234517
3
9855123586739189237358147624
4
3755266971313584794591526215
Answers on the next page.More free sheets: owlpuzzles.com/printable-logic-puzzles

Answers

Sudoku · Hard · Sheet 681
Owlpuzzlesowlpuzzles.com
1
591387462378246591624195378183679245945821736267534189432958617719462853856713924
2
163257489485369721927184563579428316814936275632571948758692134346715892291843657
3
267349185518762439943581762756813294132694578894257613471935826385126947629478351
4
289631754475892361316745289547129836132568947698374512963487125754213698821956473