W-Wings are SO COOL! / Sudoku Tutorial #25 - YouTube
W Sudoku
Found this lesser known W-wing pattern when I was doing this puzzle. The blue 1/4 cells form a potential W-wing. If there is no 1 and 4 in the orange cells, you
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Sudoku liczbowe - zabawa logiczna, którą wykorzystasz w szkole
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7:2 :: relax w:sudoku | The sun is out and I've started to s… | Flickr
Spotted my first ALS-W-Wing. Placing 6 in either green squares locks the 7s in both ALSes to r89c2 or r6c4. Since one of these 3 cells has to contain 7, r6c2 (which