UVWXYZ-Wing
Level 10 · Brown Belt
Overview
UVWXYZ-Wing is a six-cell wing pattern with six combined candidates. It extends the wing family to larger sets, using ALS-like logic for eliminations.
How It Works
- Find six cells whose combined candidates use exactly six digits.
- A pivot cell sees all five wing cells.
- The restricted candidate is locked within the pattern.
- Eliminate it from cells outside the pattern that see all relevant cells.
Example
Found a 6-Y-Wing pattern. The pivot cell R2C6 has candidates connected to a 5-cell wing group.
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Tips & Patterns
- UVWXYZ-Wings are extremely rare in practice.
- They are part of the N-Y-Wing generalization where N cells have N candidates plus a pivot.
- Understanding ALS theory helps recognize these patterns.