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Hard Sudoku — Puzzle 195

8637
68
94
139
641
742
3192
53
821

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.

286154379
473269185
951387624
138625497
642971853
597438216
315896742
724513968
869742531

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