PlaySudoku.us
Expert · Puzzle #21
8
4
2
3
2
4
6
8
5
9
6
5
4
2
9
7
1
6
8
5
1
8
3
5
8
4
Techniques used
- Naked Single
- Hidden Single
- X-Wing
- XY-Wing
"What lies behind us and what lies before us are tiny matters compared to what lies within us." — Ralph Waldo Emerson
"What lies behind us and what lies before us are tiny matters compared to what lies within us." — Ralph Waldo Emerson
"Tactics flow from a superior position." — Bobby Fischer
"Tactics flow from a superior position." — Bobby Fischer