Section D2 – h#3
3 solutions
1.Nf3 Nf6 2.Ke3 Ke6 3.Kf4 Nd5# (IM)
1.Nf5 Nf6 2.Ke3 Rg3+ 3.Kf4 Nh5#
1.Nc5 Ke5 2.Kc4 Kf4 3.Kd5 Ne3# (IM)
Distant self-block × 3
Place exchange in final positions (bicolor, Kk)
Ideal mate × 2
Mate on the white piece square × 1
Simple choice of move order (W1, enabling B2)