The Best X-Wing Explanation You Will Ever See! / Tutorial #10
25:02
Finned & Sashimi X Wings in Plain English! / Tutorial #11
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Swordfish Caught and Eaten! / Sudoku Tutorial #12
18:44
This Sudoku Actually Teaches The X-Wing Technique!
29:53
The Infamous Sudoku Skyscraper! / Tutorial #16
46:45
Empty Rectangles / Sudoku Tutorial #17
26:05
How to Use X-Wings When Doing Sudoku Puzzles with Pencil & Paper
32:36
Sudoku Tutorial #11-A / X Wing Examples & Tips
9:58