Mine uses 71 ops. That's a "normal" flood system with no weighting and includes initialising the RAM maps.
At 32 MHz it runs in c. very few ms. ( = (I've-no-idea), but I will try to measure it). I know that before it's left the start square or has finished turning round in a dead end it has full solution - that's all that's necessary.
Regards from Alan D.<<