The Powerful XY-Wing! / Sudoku Tutorial #23
Explanation and demonstration of the XY-Wing Pattern in Sudoku. Three Bi-Value Cells connected by an Alternate Inference Chain, in an easily-identifiable configuration. Allows for the elimination of False Candidates. Includes many examples.
Видео The Powerful XY-Wing! / Sudoku Tutorial #23 канала Sudoku Swami
Видео The Powerful XY-Wing! / Sudoku Tutorial #23 канала Sudoku Swami
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