#18211 by PyChess

#18212 by Zak

#18213 by pc

#18214 by draw

#18215 by W M Chesnut

#18216 by Seismik

#18217 by Stockfish 250916 64 POPCNT

#18218 by CroChess 1.03_beta 54 ply search

#18219 by Stockfish 250916 53 ply search

#18220 by PyChess