Section D1 – h#2
4 solutions
1.Rb1 b5 (A) 2.Rxb5 Nxe3# (B) (MM)
1.Kd5 Nxe3 (B) 2.Ke6 d5# (C) (MM)
1.Rd1 d5 (C) 2.Rxd5 Nxa3# (D) (MM)
1.Kb5 Nxa3 (D) 2.Ka6 b5# (A) (MM)
Active sacrifice (white) × 2
Ambush (bR) × 2
Cycle of moves (W1/W2)
Echo mates (mirrored vertically, 0, 0)
Exchange of functions (wPb4/wPd4, Mate / Passive)
Exchange of functions (wPb4/wPd4, Passive guard / Sacrifice + Line opening)
HOTF
Sabra 28 theme × 2
Sacrificial Bristol (white-black) × 2
Umnov mate (bK-wP) × 2
Model mate × 4
Echo • BK moves only × 2
Compass theme (North, 2-2, 4)
JT Onkoud 50 theme (double)
Self-block × 2 • W Capture × 2
B Capture × 4 • Square vacation × 2
Umnov move × 2