![]() Of a Sudoku puzzle if speed is important and youĭo not need automatic conversions on the output May be called directly as a method of an instance Simply generate None for each solution, so theĪ generator that iterates over all the solutions. If set to True the generator returned as output will Return a generator that iterates through all solutions of a Sudoku puzzle. This algorithm works very fast on it, at about half the time This example was reported to be very difficult for human solvers. ![]() We have limited this function to \(16\times 16\) puzzles. Without dynamically allocating arrays in the Cython version, Of 5 improvement over the \(DLX\) algorithm. However, examples meant to beĭifficult for humans often do very well, with a factor Poorly for naive backtracking, will do poorly This routine can have wildly variable performance, with aįactor of 4000 observed between the fastest and slowest ![]() Is supported, then the contents of backtrack_all() Once Cython supports closures and a yield statement Present method just returns the items of the list one atĪ time. However it may be called directly as a method of anĬonstructs all of the solutions as a list. When the algorithm='backtrack' option is specified. This function is intended to be called from the Return a generator which iterates through all solutions of a Sudoku puzzle. Verify_input – default = True, use False if you know the input is valid For two-digit entries, a = 10, b = 11, etc. String - a string where each character is an entry of Matrix - a square Sage matrix over \(\ZZ\) List - a Python list with elements of the puzzle in row-major order,
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