| a | b | c | d | e | f | g | h | i | |
| A | 5 | 9 | 2 | 1 | |||||
| B | 4 | 5 | 6 | ||||||
| C | 8 | 9 | 3 | 5 | |||||
| D | 8 | 7 | 2 | 5 | |||||
| E | 6 | 5 | 4 | 8 | 2 | ||||
| F | 1 | 5 | 6 | 8 | 4 | 9 | 7 | ||
| G | 1 | 8 | 2 | 5 | |||||
| H | 7 | 6 | 8 | 3 | |||||
| I | 4 | 7 | 8 |
Finding twins is a laborious process to do manually. SudokuDragon will locate these for you automatically. You need to scan the grid and note down all the possibilities for each square.
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.