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You can go to Mystery Sudoku Techniques to find a step by step solution and explaination of a mystery sudoku.
The Mystery Sudoku is my latest creation. Just like a sum frame sudoku, there are SUM NUMBERS in the border.
One of the 9 digits (eg 2) is the Mystery Digit. What do we know about this digit?
|SOLVING MYSTERY SUDOKU|
LEV: choose a level of difficulty. Between brackets is the number of puzzles per level.
PUZ: enter the puzzle number of your choice.
START: choose this to load the puzzle.
|COLOR CELL:||Click on a cell to color it yellow or back to white. You can use this to point out the cells that contain the mystery digit.|
|ROW:||In front of every SUM you will find the missing digits for that row.|
|COLUMN:||Above every SUM you will find the missing digits for that column.|
|BOXES (1-9):||At the top left are 9 boxes with the missing digits of the 9 subgrids.|
|NUMBER OF DIGITS:||At the top you can see how often a number has already been entered and where.|
|PLAY BETWEEN 1 & 9 SUDOKU|
|ENTERING DIGITS:||On the left, in the first column, choose the digit(s) you want to enter and then click on the sudoku cell of your choice. You can enter 1 or more digits. Choose one digit and click on the empty cell (=bottom left corner) to place one digit in small size.|
|BUTTON ✓:||Choose ✓ button to check the puzzle. All the correct numbers turn GREEN just like the initial numbers and now can not be changed anymore.|
|BUTTON SOL:||Click on the SOL button to display the puzzle solution.|