Section D2 – h#3
2 solutions
1.Be4 fxe4 2.Kxe4 Rxc6 3.Kf5 Bg6# (MM)
1.Rd5 cxd5 2.Kxd5 Bxg4 3.Kd6 Rd7# (MM)
Active sacrifice (black) × 2
Active sacrifice (white) × 2
Analogy (good)
AntiZielElement (B1, direct guard) × 2
AntiZielElement (B1, self-block) × 2
Chumakov theme (p-p, simplified, 2, 2)
Delayed Umnov (bB- wB)
Delayed Umnov (bR- wR)
Exchange of functions (bBg6/bRd7, Passive / Sacrifice)
Exchange of functions (bPg4/bPc6, Captured / Passive self-block)
Exchange of functions (wBh5/wRc7, Guard / Mate)
Exchange of functions (wPf3/wPc4, Passive / Sacrifice)
Orthogonal-diagonal transformation
Pawn-Zajic × 2
Simple choice of move order (W1, enabling B2) × 2
Unblocking sacrifice x 2
Model mate × 2