Monkeymore Sudoku

W-Wing

Level 6 · Orange Belt (Green Stripe)

Prerequisite: WingsLearn next → Naked Pair

Overview

W-Wing consists of two identical bi-value cells connected by a strong link on one of their candidates. The other candidate can be eliminated from cells that see both bi-value cells.

How It Works

  1. Find two bi-value cells with identical candidates {X,Y} that don't see each other.
  2. Find a strong link on digit X (or Y) connecting cells that each see one of the bi-value cells.
  3. If the strong link is on X, eliminate Y from cells that see both bi-value cells.

Example

Find two bivalue cells with identical candidates: r2c6 and r8c2 both have { 5, 6 }.

1 / 5

Tips & Patterns

  • W-Wings are relatively easy to spot once you know the pattern.
  • Look for matching bi-value cells first, then search for connecting strong links.
  • The elimination digit is the one NOT involved in the strong link.