A Sudoku solver based on an iterative backtracking (no recursion). Solves "the hardest sudoku puzzle" in less than 0.2 sec on a 6th-gen Intel i5 CPU (quad-core).
A Sudoku solver based on an iterative backtracking (no recursion). Solves "the hardest sudoku puzzle" in less than 0.2 sec on a 6th-gen Intel i5 CPU (quad-core).