| a | b | c | d | e | f | g | h | i | |
| A | 6 | 4 | 8 | 1 | |||||
| B | 1 | 7 | 6 | 2 | |||||
| C | 1 | 4 | 6 | 9 | |||||
| D | 5 | 2 | 7 | ||||||
| E | 9 | 6 | 1 | ||||||
| F | 3 | 8 | 4 | 6 | |||||
| G | 1 | 5 | 4 | ||||||
| H | 2 | 3 | 6 | ||||||
| I | 8 | 5 | 6 |
The Swordfish rule is a variation of the X-Wing. It is just a further complication involving looking at more squares.
Running. Press the Stop button to pause the tutorial. Help page.
Welcome to a Sudoku Dragon tutorial. Use the bar under the grid to control how it is run. The buttons let you Stop; Play; Rewind back to start; Go back a step; Go forward a step.