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Hard Sudoku — Puzzle 249

21
86
3
691
467
5837
187
48521
129

Solve it here

Tap an empty square, then tap a number. Or print the page and use a pencil.

0 of 55 squares filled

Fill every row, every column and every 3 by 3 box with the numbers 1 to 9. This puzzle has 26 given numbers and exactly one solution.

425379618
178246935
369518247
697152483
834697152
512834769
253961874
946785321
781423596

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