SudokuHard

Hard Sudoku — Puzzle 85

374
9413
2
8317
2174
79
93
456
684

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.

137286945
596741382
482359176
649823517
251697438
873415269
715964823
324578691
968132754