Comment 1 for bug 1518625
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| Paul Sonnenschein (paul-u-one-login) wrote | #1 |
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0f7b58d
(Get the code!)
The problem lays at the implementation of the algorithm:
The CU.Sudoku.cull function in the file js/SudokuCU.js chooses the numbers to remove from the generated grid randomly without taking into account whether a number is essential for the solution which was generated before the removal of certain numbers. So sometimes essential numbers get removed by this function, and the grid is ambiguous.