Squirmbag
A Squirmbag is a fish with 5 rows and 5 columns.
Squirmbag in the rows
When all candidates for a particular digit in 5 rows are located in only 5 columns, we can eliminate all candidates from those 5 columns which are not located on those 5 rows.Squirmbag in the columns
When all candidates for a particular digit in 5 columns are located in only 5 rows, we can eliminate all candidates from those 5 rows which are not located on those 5 columns.
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.
Sudoku Games
- Sudoku 9981
- Samurai Sudoku
- Sudoku Printer
- Word Sudoku to Learn English
Word Sudoku to Learn Chinese
Word Sudoku to Learn French
Word Sudoku to Learn German
Word Sudoku to Learn Spanish
Free Sudoku Script for Your Website
Sudoku strategies
- Coloring
- Singles
- Fish
- Chains and Loops
- Intersections
- Subsets
- Wings
- Single Digit Patterns
- Uniqueness
- Almost Locked Sets
