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A mustknow strategy for sudoku expert. A strategy all sudoku experts must know. A strategy all sudoku experts must know.
Learn how to do sudoku xwings. How to spot an x wing and solve a. Explained stepbystep with simplified expert instruction.
Sudoku xwing examples & tips (basic, finned sashimi). If anyone watching this video would like to see other examples of particular technique, let me know and i'll post one or more videos demonstrating it.