SudokuHard

Hard Sudoku — Puzzle 212

6418
4527
52
785
923
8169
281
38
5

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.

265497318
814523976
793618524
637859142
941236857
528741639
479365281
386172495
152984763