1... | Qa6+! |
2.Kg2 | Qd6 |
First, Black blockades the d-pawn | |
3.Qd4 | Kg8 |
4.Qc4 | Kf7 |
Now the Black king aims to attack d5 | |
5.Qb5 | Qd8 |
6.f4 | Qc7 |
7.Kf3 | Qc3+ |
8.Kg4 | |
Clearly not 8.Ke4 Qb4+! and the pawns in this formation will win for Black | |
8... | Ke7 |
9.Qb6 | h5+! |
10.Kxh5 | Qh3+ |
11.Kg5 | Qg2+ |
12.Kf5 | Qxd5+ |
13.Kg6 | Qd6+! |
14.Qxd6 | Kxd6 |
15.f5 | a4 |
16.Kxg7 | a3 |
And Black won | |
Marshall-Alekhine (1929) |