More custom starting positions

The editor should be able to create chess games with any starting position. The number of pieces should not be limited (when trying to play the game AGAINST A.I. ONLY, it fails if you have more than 16 pieces for white, black, or both)

Yeah, seeks with start positions like this could be fun:

Laughing so hard, I can't make heads or tails of the position above. Oh I see, Zug was involved!
P.S. found mate in 3 :)

Or this lichess.org/editor/qppppppk/pppppppp/pppppppp/pppppppp/PPPPPPPP/PPPPPPPP/PPPPPPPP/KPPPPPPQ_w_KQkq_-