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W Wing

Hard

A W-wing can be found when two cells would cause a if both cells were the same candidate.

How it works

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Start with a Remote Pair

These two cells have the same two candidates (2, 7) and don't see each other.

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Find a bridge

In this Box, every cell with candidate 7 intersects with the .

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They can't both be 7

If both Remote Pair cells are 7, then this Box would be invalid.

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One or both must be 2

We can now be certain that one or both of the Remote Pair cells must be 2.

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Eliminate shared peers

Safely remove 2 from any cells that see both of the Remote Pair cells.

All Hints

Unlock hints to find
the W Wing on your board.

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