[Title "1.e8=N+ Forced knight promotion"]
[StartFlipped "0"]
[fen "3K4/4P3/2qk4/8/8/8/8/8 w - - 0 1"]

1. e8=N+ (1.e8=Q Qc7#)

[Title "Forced N or B promotion else stalemate"]
[StartFlipped "0"]
[fen "3rb2k/2P4p/6pP/p4pP1/Pp2pP2/1P2K3/8/8 w - - 0 1"]

1. cxd8=N (1. cxd8=B) (1. cxd8=Q)