Please check this stratgy guide if you want to use the advanced strategies. There are pitfalls, for example, with Unique Rectangles, which rely on a certain formations. All the normal rules and logical posibilities apply to Sudoku X with Solver they are checked before rows, columns and boxes. For tough puzzles and above the diagonals must be checked. You will want to scan them in case you see an easy 'single'. However, the extra constraints mean that the puzzle creator can leave less clues than normal sudoku.įor the easier Sudoku X puzzles you won't really find a necessary example of a deduction based on the diagonals although You can look along the diagonals (marked with a darked X on th board) and makeĭeductions. To eliminate and find solutions to cells. These extra constraints allow you the puzzle solver to dervice new conclusions about candidates The difference is that in Sudoku X the two diagonals are known to contain You discover the logical solutions for this puzzle. Sudoku X is a great variant of normal Sudoku and this solver is an extension of my Sudoku Solver to help
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