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Sudoku: hard sheet 641

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 641 · 9×9
Owlpuzzlesowlpuzzles.com
  • Write 1 to 9 so every row, column and 3×3 box holds each number once.
1
691479326294619967386683538
2
363475728183295324356262196
3
165273386989786252368135412
4
3141565962574993159816729632
Answers on the next page.More free sheets: owlpuzzles.com/printable-logic-puzzles

Answers

Sudoku · Hard · Sheet 641
Owlpuzzlesowlpuzzles.com
1
652439187841627395793185246127598463486713952539264871378952614264871539915346728
2
837941625219635847564728139158264973472193586396587214781356492623419758945872361
3
143968275869527341725143869382675194597481623614239758236894517971352486458716932
4
869523174342718956157964823574136289231859647986472315495381762728695431613247598