Game technique · Sudoku
Swordfish in Sudoku
A Swordfish extends the X-Wing pattern to three rows and three columns.
🎮 Play Sudoku →How it works
A Swordfish extends the X-Wing pattern to three rows and three columns.
Example
If a digit in three rows is confined to the same three columns, eliminate it from other cells in those columns.
Video guide
Key point
A Swordfish extends the X-Wing pattern to three rows and three columns.