PlaySudoku.us
Expert · Puzzle #501
7
4
5
6
8
2
7
8
5
3
5
2
9
1
4
7
3
9
3
2
1
2
1
6
Techniques used
- Hidden Single
- Naked Single
- Naked Quad
- Pointing Pair
- Box-Line Reduction
- XY-Chain
"Do not let what you cannot do interfere with what you can do." — John Wooden
"Do not let what you cannot do interfere with what you can do." — John Wooden
After applying any elimination technique, always restart your scan from the simplest techniques — a single elimination often unlocks a naked single.
After applying any elimination technique, always restart your scan from the simplest techniques — a single elimination often unlocks a naked single.