/sci/ - Science & Math

>>9866943
I missed like 10 spaces because I was counting 6 columns instead of 7 (for x= 1,4,7,10,13,16,19) so the total is 128, not 118
the maximum theoretical amount of non-overlapping knights in a 20x20 chessboard is 140( 7 columns of 20 each or pic related)
If you got other proof to show, show it