PlaySudoku.us
Evil · Puzzle #530
4
7
2
5
9
3
2
6
3
4
6
9
4
1
8
4
5
9
6
8
6
2
1
7
3
Techniques used
- Hidden Single
- Pointing Pair
- Forcing Chains
- Naked Quad
- Naked Single
- W-Wing
- 2-String Kite
- XY-Chain
- X-Wing
- Simple Coloring
The puzzle was originally called "Number Place" in the US. The name "Sudoku" was given by Japanese publisher Nikoli.
The puzzle was originally called "Number Place" in the US. The name "Sudoku" was given by Japanese publisher Nikoli.
"Education is not the filling of a pail, but the lighting of a fire." — W. B. Yeats
"Education is not the filling of a pail, but the lighting of a fire." — W. B. Yeats