Section D2 – h#3
b) wQf7–>d7
a) 1.Sb4 Rd5 2.Kxc4 Rxb5+ 3.Kxb5 Bc4#
b) 1.Sxe3 Bd5 2.Kxd4 Bxe4+ 3.Kxe4 Rd4#
Active sacrifice (white) × 2
Exchange of functions (wRd6/wBe6, Mate / Sacrifice + Line opening)
Grimshaw (white)
Kniest theme × 2
Orthogonal-diagonal transformation
Play on same square (W1, 2)
Umnov mate (bK-wB)
Umnov mate (bK-wR)
Zilahi (active, RB, 2)