SudokuHard

Hard Sudoku — Puzzle 204

963
82
46
6972
9368
4265
7218
483

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.

926513784
143867295
758492136
365189472
297354618
814726359
579241863
632978541
481635927