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Sudoku: hard sheet 660

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 660 · 9×9
Owlpuzzlesowlpuzzles.com
  • Write 1 to 9 so every row, column and 3×3 box holds each number once.
1
451823924861957682618396975668
2
7965977174522178842156568493
3
63861934658538984724567916
4
2875561895873317654437958693
Answers on the next page.More free sheets: owlpuzzles.com/printable-logic-puzzles

Answers

Sudoku · Hard · Sheet 660
Owlpuzzlesowlpuzzles.com
1
832674915754918236169253487326197548971485362548326179283749651497561823615832794
2
853746291162539784947812365379184526216395478584267913428951637735628149691473852
3
478652193932481675156937284693714528725368941814529367289145736567893412341276859
4
924876513831594267765321849549187326386942751217653984453718692692435178178269435