beetjepeetje wrote:A 144x144 sudoku took me 8hours 12minutes with 8085 clues removed (nearly 39% of the clues)
A 144x144 and 256x256 are posted here.
Minimization needs more work (only ~25-30% removed).
beetjepeetje wrote:A 144x144 sudoku took me 8hours 12minutes with 8085 clues removed (nearly 39% of the clues)