SudokuHard

Hard Sudoku — Puzzle 268

84763
32
9
7298
963
18
6
8931
6519

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.

589147623
342856719
716392485
437261598
968435271
125978364
274519836
893624157
651783942