After reading [1], I'm not really sure backtracking is even an integral part of WFC, as apparently it sometimes fails to find a solution and needs to retry from

After reading [1], I'm not really sure backtracking is even an integral part of WFC, as apparently it sometimes fails to find a solution and needs to retry from start. Backtracking seems to be more of an optional add-on. [1] https://paulmerrell.org/wp-content/uploads/2021/07/comparison.pdf https://paulmerrell.org/wp-content/uploads/2021/07/compariso...