PlaySudoku.us
Expert · Puzzle #137
4
1
9
5
5
2
6
8
1
8
7
9
2
5
8
5
2
7
6
7
4
6
2
1
9
Techniques used
- Hidden Single
- Naked Single
- Naked Pair
- Naked Triple
- Pointing Pair
- Box-Line Reduction
- UR Type 4
- XY-Chain
"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