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Sudoku: hard sheet 680

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 680 · 9×9
Owlpuzzlesowlpuzzles.com
  • Write 1 to 9 so every row, column and 3×3 box holds each number once.
1
19289837792437428461341597583
2
2154798792864874135613328524
3
214835568153795188295736347651
4
71564369193486245973178935
Answers on the next page.More free sheets: owlpuzzles.com/printable-logic-puzzles

Answers

Sudoku · Hard · Sheet 680
Owlpuzzlesowlpuzzles.com
1
176954328498312675325786914289637451637145289514829736961573842843261597752498163
2
621794385453681792879325164285963471316847529794512836947258613132476958568139247
3
921764835754283196638159274215938647496571382873426951169845723582317469347692518
4
718523964943167852256498317579312648834956721621784593395271486462835179187649235