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Evil · Puzzle #124
2
6
9
7
9
6
8
3
7
1
7
8
4
3
5
2
7
3
5
4
8
6
1
The 'Skyscraper' technique links two X-Wing candidates via a shared column — advanced but powerful on expert grids.
The 'Skyscraper' technique links two X-Wing candidates via a shared column — advanced but powerful on expert grids.
"Problems worthy of attack prove their worth by fighting back." — Piet Hein
"Problems worthy of attack prove their worth by fighting back." — Piet Hein