Section D1 – h#2
b) bNc3->c4
a) 1.Nd5 Rc8 2.Qe7 Nc4# (MM)
Anti-critical move (white)
Model mate × 1
Simple choice of move order (B1, enabling W1)
B-W gate opening × 1
Self-block × 2
Anti-critical move × 1
b) 1.Qd5 Bc8 2.Se5 Sf5# (MM)
Anti-critical move (white)
Model mate × 1
Bivalve (bS-wR-bQ)
Simple choice of move order (B1, enabling W1) •
B-W gate opening × 1
Interference × 1
Self-block × 2
Anti-critical move × 1

