1.Nf3+
Kh1!
[1...Kh3
2.Ng5+
Kg2
3.Bxc5+
]
2.Bd4!!
with a mate threat [2.Bxc5?
Qa4+
3.Nd4
Qxd4+
4.Bxd4
stalemate]
2...Qf7+!
[2...Qc7+?
3.Ne5
Qc8
(3...Qb8
4.Rb2!
Qf8+
5.Kg3
Qg7+
6.Ng4
Qc7+
7.Be5
Qh7
8.Rd2
) 4.Kg3
Qg8+
5.Ng4
Qb8+
6.Kh3
Qb3+
7.Rc3
Qb1
8.Nf2+
Kg1
9.Ne4+
cxd4
10.Rg3+
Kf1
11.Nd2+
; 2...Qb8+?
3.Be5
Qf8+
4.Ke3
Qh6+
5.Kf2
c4
6.Ra2
Qb6+
7.Bd4
Qb1
8.Ra1
]
3.Ke3!!
[3.Kg3?
Qg6+
4.Kf4
Qxc2
; 3.Ke5?
Qe8+
4.Kf6
Qh8+
5.Kg5
cxd4
]
3...cxd4+
4.Kf2!
Qf4
5.Rc6!!
Mutual zugzwang. Black has no good move with his queen. [5.Re2?
Qe3+
; 5.Ra2?
Qc1
6.Kg3!?
(6.Ra8
Qc2+
7.Kg3
Qg6+
8.Kf2
Qc2+
(8...Qg2+
9.Ke1
Qxf3
) ) 6...Qc7+
7.Kf2
Qc1
; 5.Rc8?
Qe3+
6.Kg3
Qh6
7.Kf2
Qe3+
8.Kg3
Qh6
9.Rg8
d3
]
5...Qe3+
[5...d3
the second thematic echo-like line 6.Rc8!!
Qh6
7.Rb8!
(7.Ra8?
Qg7
) ]
6.Kg3
Mutual zugzwang again. Black has to move with a pawn blocking important line.
6...d3
7.Ra6!
Qc1
8.Ra7!
[8.Ra8?
Qc7+
9.Kf2
Qb6+
] 1-0