Section D2 – h#3
2 solutions
1.Ke3 Be7 2.Kf4 Rf8 3.Kg5 Ng8#
1.Kd4 Rxg6 2.Ke5 Bg7 3.Kd6 Nd5#
Ambush (wB) × 2
Ambush (wR) × 2
BK moves only × 2
Exchange of functions (wBf8/wRg8, Guard / Rear piece of mating battery)
Model mate × 1 Battery mate × 2