XY Wing also known as Y Wing is an advanced Sudoku tutorial. It uses a bi-value cell called pivot and helps eliminate candidates using it.
Read the Sudoku help page for the rules, and the techniques potentially required to solve BrainBashers Sudoku. An XY-Wing is a very advanced technique which can eliminate certain candidates from squares. Its name comes from the pattern formed by the digits and is not related to X-Wing. We ...
Mirrored from Sudopedia, the Free Sudoku Reference GuideXY-WingAn XY-Wing is a solving technique that uses a short chain of 3 cells. The cell in the center is called the pivot. The other 2 cells are the pincers. The chain uses only 3 digits, symbolically named X, Y and Z. Any ...