SudokuHard

Hard Sudoku — Puzzle 201

4
27
47829
236
35
4968
794
187
9613

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 27 given numbers and exactly one solution, so it can always be finished by reasoning alone.

798326541
125894763
346517829
812453697
639271458
574968312
261735984
453189276
987642135