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Hard Sudoku — Puzzle 137

9481
715
62
64
9
87452
694
763
917

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.

943687251
721359468
586412793
239568174
615274839
874931526
167823945
458796312
392145687

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