Halloween is finally here, so I thought I'd do a theme puzzle! I love chess, and I wanted to do a chess puzzle... so...
(It kind of looks like a jack-o-lantern, okay?)
Black to move and mate in 5!
No trickery here, just a normal chess puzzle.
No idea about the puzzle but something spooky is definitely going on:
Black's pawns cannot get into that position without capturing some of White's pieces, but all White's pieces are on the board.
Similarly, White's pawn structure requires several captures (min 6) but Black retains all their pieces except one bishop.
Black has 17 pieces!
Are captured pieces/promoted pawns returning from beyond the board?