PlaySudoku.us
Medium · Puzzle #522
5
9
2
4
8
7
3
8
3
4
3
7
2
8
2
8
1
1
3
7
1
5
2
7
9
4
9
1
5
8
5
7
2
There are Sudoku apps that generate over 1 billion distinct puzzles — you could solve a new one every day for 2.7 million years.
There are Sudoku apps that generate over 1 billion distinct puzzles — you could solve a new one every day for 2.7 million years.
"The hardest game to win is a won game." — Emanuel Lasker
"The hardest game to win is a won game." — Emanuel Lasker