PlaySudoku.us
Easy · Puzzle #165
4
5
9
8
3
2
6
1
3
7
6
1
9
6
8
4
5
9
1
7
2
6
4
8
3
5
2
7
6
7
6
8
9
5
1
2
9
7
5
4
6
1
3
8
2
3
6
9
8
4
1
"Simplicity is the ultimate sophistication." — Leonardo da Vinci
"Simplicity is the ultimate sophistication." — Leonardo da Vinci
Some Sudoku apps use neural networks to grade puzzle difficulty — training on millions of human solve attempts.
Some Sudoku apps use neural networks to grade puzzle difficulty — training on millions of human solve attempts.