this time more complicated.

the last one: http://www.chess.com/forum/view/more-puzzles/3-underpromotions-in-1-puzzle

again, hope you enjoy the puzzle!

Doesnt make sense to me, why not promote to a queen the first time round? and the black bishop can take the c pawn at the end.

Hey Lord-Chaos, 1.d8=Q would allow 1...Bc6+, 2.Bg2 would allow 2...f1=Q#, black wins. Correctme if I'm wrong!

Oh yes sorry, i get it. Theres a threat to mate. Ok so theres nomistakes apart from that the c pawn can be taken at the end =)

Well, 2 underpromotions, a queen is not an underpromotion. Great puzzle, though!

wait but after a8=B Black can play Bxc2