Mirrored from Sudopedia, the Free Sudoku Reference Guide
Each of the defining lines can have 2, 3, 4 or 5 candidates, but together they cover 5 of the crossing lines.
In a standard Sudoku, a Squirmbag is always complemented by a smaller fish, because there are only 9 rows and columns. Some players prefer to look for fish in the rows only. They may find a Squirmbag in the rows, where others find the complementary X-Wing, Swordfish or Jellyfish in the columns.This page was last modified 17:19, 16 October 2007.