Head pointers head

Is it possible to build a computer program that can solve even the most difficult SUDOKU puzzles ? - difficult puzzles

Definitely yes. The consolidation of the R-values on the elimination of cells (multiple risks and uncertainties is required for harder Sudoku) is relatively simple. These programs emulate the human logic to a puzzle without solving the conjecture. Given the self-imposed limitations of most editors of Sudoku, this method succeeds in general.

It is also easy to construct a search trace.