Finned Fish
Finned Fish is a variety of fish that has extra candidates in a single box. Like regular fish, it is a single-digit solving technique.
The same names are used for the different sizes:
Finned X-WingSize 2
Finned Swordfish
Size 3
Finned Jellyfish
Size 4
How it works
Here is an example of a Finned X-Wing:
![Finned Fish , How to solve sudoku puzzles - Solving sudoku strategy,image 1](tp/fs.png)
The four cells marked X would be an X-Wing if the candidate in the cell marked F were not present. So either there is an X-Wing, or the candidate in F is true. In both cases, the starred cells cannot contain a candidate for this digit. We can eliminate those candidates.
The F cell is known as the fin. In this example, there could also be a candidate in r5c3. This would be called a big fin, but the effects are the same.
Sudoku Games
Free Sudoku Script for Your Website
Sudoku strategies
- Coloring
- Singles
- Fish
- Chains and Loops
- Intersections
- Subsets
- Wings
- Single Digit Patterns
- Uniqueness
- Almost Locked Sets
![](/gfx/sep2.gif)
![](/gfx/sep2.gif)
Printable Sudoku
- Kids Sudoku Puzzles
- Easy Sudoku Puzzles
- Standard Sudoko Puzzles
- Hard Sudoku Puzzles
- Expert Soduko Puzzles
- Extreme Soduku Puzzles
- Blank Sudoku Grids
![](/gfx/sep2.gif)
Sudoku Links
![sudoku cool](/image/en.png)
![sudoku schwer](/image/de.png)
![sudoku gratuit](/image/fr.png)
![sudoku gratis](/image/es.png)
![数独](/image/zh.png)
![数独](/image/ja.png)
![Судоку онлайн бесплатно](/image/ru.png)
![数独](/image/ja.png)
![今日数独](/image/zh.png)
![武士数独](/image/zh.png)