Section D2 – h#3
3 solutions
1.Raa3 Kb7 2.Ka4+ Ka6 3.Rb4 Nc5# (IM)
1.Ra4 Ne5 2.Ka5+ Ka7 3.Rb5 Nc6# (IM)
1.Ka6+ Kc7 2.Rb7+ Kc6 3.Ra7 Nb8# (IM)
Consecutive Umnov (black-black, rkr, 2)
Echo mates (shifted, 0, 1)
Ideal mate
Echo
Chameleon
Epaulette mate
Black battery × 1
Choice of move order (B1, flight-guard avoidance, black-white)
Distant self-block
Simple choice of move order (B2, enabling W2)