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Sudoku: hard sheet 523

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 523 · 9×9
Owlpuzzlesowlpuzzles.com
  • Write 1 to 9 so every row, column and 3×3 box holds each number once.
1
129423475237154524869477935382
2
75296835931586835687124271
3
267898258186957453678316219
4
984721564423246835731362531
Answers on the next page.More free sheets: owlpuzzles.com/printable-logic-puzzles

Answers

Sudoku · Hard · Sheet 523
Owlpuzzlesowlpuzzles.com
1
361582947298347615475196382839761524647925138512438769986253471124679853753814296
2
378561492592734681416289375964372158125896734783145926857413269631928547249657813
3
521679843379148265864532719985216437243957681617483952132894576798365124456721398
4
319265847724189536586374921645928713132547689897631254468712395971853462253496178