Originally posted by wittywonkaHelpmates usually start with Black to play. In this case, it must, as Black needs four moves to get his King to the corner.
I guess I'll keep it going...
Here's another puzzle...White to play and achieves help-mate in four moves...
[fen]8/8/8/8/8/1k6/n1N5/1K6[/fen]
Moves are usually listed with Black's move coming directly after the move number.
1.Nc3+ Kc1 2.Ka2 Nd4 3.Ka1 Kc2 4.Na2 Nb3#