Sorry, you are too fast. I can’t catch up with it. Only I feel you seem on something right direction. As for me, I am struggling with the problem rect(12,12), seeing activity monitor shows
currently 200GB !! memory usage. It is still running after starting half day long ago. The record of rect(21, 21) by Minato’s group is incredible for me. But the difference of technology is real.
Any way, good luck for your direction.