Mirrored from Sudopedia, the Free Sudoku Reference Guide
A Skewed Fish is a variant of the fish technique that can be applied to Sudoku-X. An ordinary fish-in-the-rows can have one or two of the rows replaced by diagonals and make the same eliminations in the columns. Likewise, we can also skew up to two columns in an ordinary fish-in-the-columns.
A Skewed 1-Fish is called a Crossover. Other examples for skewed fishs are Skewed X-Wing, Finned Skewed X-Wing, Sashimi Skewed X-Wing and Skewed Swordfish.