WXYZ-Wing
Level 8 · Blue Belt
Overview
WXYZ-Wing uses four cells with candidates forming a restricted pattern. When properly configured, a common candidate can be eliminated from cells seeing all pattern cells.
How It Works
- Find four cells whose combined candidates use exactly four digits {W,X,Y,Z}.
- One cell (pivot) sees the other three.
- Eliminate the restricted digit from cells seeing all four pattern cells.
Example
Find a pivot cell r1c3 with candidates connected to a 3-cell wing group.
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Tips & Patterns
- WXYZ-Wings have complex requirements - study examples carefully.
- They extend the Wing family pattern to four cells.
- These are quite rare in most puzzles.