You can solve it via brute force if you cut off branches that don't satisfy the ...

		tonyedgecombe on Feb 2, 2022 \| parent \| context \| favorite \| on: Singapore prime minister Lee Hsien Loong’s Sudoku ... You can solve it via brute force if you cut off branches that don't satisfy the rules: https://github.com/tonyedgecombe/Sudoku/blob/master/Sudoku/P... It's not 1ms but it's not that slow either.