SudokuHard

Hard Sudoku — Puzzle 262

19
162
692471
493
16
574
857
74
36

How to play

Fill every row, every column and every 3 by 3 box with the numbers 1 to 9, using each number once.

This puzzle has 26 given numbers and exactly one solution, so it can always be finished by reasoning alone.

142357986
587196423
369824751
624938517
738415269
951672348
896543172
215769834
473281695