PlaySudoku.us
Evil · Puzzle #961
7
9
6
2
3
1
8
2
7
4
6
2
8
2
4
6
2
5
6
9
4
9
1
4
5
Techniques used
- Hidden Single
- Naked Pair
- Naked Triple
- Naked Single
- 2-String Kite
- Forcing Chains
- UR Type 4
- XY-Wing
- Pointing Pair
- W-Wing
- XY-Chain
- X-Wing
SAT solvers — used in chip design verification — can crack any Sudoku puzzle in milliseconds.
SAT solvers — used in chip design verification — can crack any Sudoku puzzle in milliseconds.
"No amount of experimentation can ever prove me right; a single experiment can prove me wrong." — Albert Einstein
"No amount of experimentation can ever prove me right; a single experiment can prove me wrong." — Albert Einstein