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Sudoku: hard sheet 663

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 663 · 9×9
Owlpuzzlesowlpuzzles.com
  • Write 1 to 9 so every row, column and 3×3 box holds each number once.
1
1869241713984259932629542657
2
371391428323289172564882547
3
361748237296852659744516498
4
23463125746795198224769371
Answers on the next page.More free sheets: owlpuzzles.com/printable-logic-puzzles

Answers

Sudoku · Hard · Sheet 663
Owlpuzzlesowlpuzzles.com
1
497152386136798524582634179213976458864215937975843261629581743748329615351467892
2
293578614587164239146392857468913572352487961719256483975621348824735196631849725
3
532618497716294538489375621371482965894756312265931874143867259958123746627549183
4
235947168986312754714568239842653917679184523153729486567891342321476895498235671