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Tentative possibilities To change the tentative possibilities just press SHIFT 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 6 of 15]
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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 SHIFT key with the number you want to set. So SHIFT+4 puts a small '4' at the bottom of a square. If you press the CONTROL key instead of SHIFT (such as CTRL+4) marks it is 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 Fd has a star indicating a note has been added to it. The square has '4' and '6' marked as impossibilities and the reason this has been marked has been added as an annotation to the square. In the same puzzle squares Ed and Ef have '4';'6' marked as possibilities. Square Ai has '7' marked as the single possibility.
Give the SudokuDragon a free 23 day trial by visiting our download page.
It has all the features you need in a Sudoku puzzle solver.
- Tour Guide Introduction
- Generating a new Puzzle
- The square allocation list
- All forms of Sudoku
- Puzzle hints
- Annotating individual squares
- Explaining possible square assignments
- Showing possible square assignments
- Looking at possibilities
- Automatic allocation for 'easy' squares
- Marking Sudoku squares
- Contribute your puzzle
- Larger Sudoku grid sizes
- League Table
- Change grid appearance
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