Notifications
Clear all
Topic starter
Sudoku’s W-Wing uses two cells (XY) connected by a third (XZ) to eliminate Y—what’s the trickiest W-Wing you spotted (distant cells, or overlapping patterns), and how did you confirm the connection? Did you ever use a W-Wing to break a grid stuck for 15 minutes, and what’s the most advanced pattern-spotting moment you had?
Posted : September 21, 2025 7:38 pm