 |
| Home |
| Sudoku |
| Solver |
| Daily |
| Online |
| Forum |
| Books |
| Resources |
| Site Map |
| Today's Dragon Tip |
|
Tentative possibilities To change the tentative possibilities just press CTRL and the number you want to add or remove to the current square. To clear all tentative possibilities from the current square press the F7 key. Read More |
Marking Sudoku Squares [Page 5 of 13]
Previous
You'll often find that solving one or two squares in a Sudoku puzzle are crucial. It's useful to write notes about why the square must take a particular number or record allocations that have been tried and found to be incorrect.
If you are used to using a pencil and eraser to help solve puzzles you can use SudokuDragon to work in just the same way. To mark a possibility simply click on the square and press CTRL key with the number you want to set. So CTRL+4 puts a small '4' at the bottom of a square. If you press CTRL+4 again then this changes it to an 'impossibility' and it is shown in reverse colors. To clear a mark just press the same key combination again. The marked possibilities are 'remembered' so you can use the Undo facility to go back and make a correction to them.
Any squares with an annotation are marked with a 'star' in the bottom left of the square. You can also indicate particular numbers are excluded or possible by double clicking on the square. If a square has an annotation, then when the mouse cursor is over the 'star', a tooltip message pops up to show the note you have made for the square.
You can change the annotation at any time. All the annotations can be printed out with the puzzle.
The highlighted square Ca has a star indicating a note has been added to it. The square has '1' marked as an impossibility and the reason this has been marked has been added as an annotation to the square. In the same puzzle square Ce has '3' marked as a possibility and '9' as an impossibility. Square Ff has '1' as an impossibility and '2' as a possibility.
Give the SudokuDragon a free 22 day trial by visiting our download page.
It has all the features you need in a Sudoku puzzle solver.
Copyright © 2005 - 2008 Sudoku Dragon