(1) Keres,P - Petrov,V [C32]
URS-ch12 Moscow, 1940



1.e4 e5 2.f4 d5
The Falkbeer Countergambit

3.exd5 e4 4.d3 Nf6 5.Nd2
At the time, this was the novelty

5...exd3
Imagine having to face a novelty on move five against Paul Keres! [5...e3!? 6.Nc4 Nxd5 7.Qf3! Bb4+ 8.Kd1 0-0 9.c3 Bc5 10.d4 Re8 11.Bd3= ]

6.Bxd3 Qxd5
[6...Nxd5 7.Qf3 Nc6 8.a3 Bc5 9.Ne2 0-0 10.Nb3 Bb6 with roughly equal chances]

7.Ngf3 Bc5 8.Qe2+ Qe6 9.Ne5 0-0 10.Ne4 Nxe4
[10...Nbd7 11.Bc4 Qe7 12.Nxf7+/- ]

11.Qxe4 g6 12.b4 Be7
[12...Bxb4+ 13.Qxb4 ]

13.Bb2 Bf6
[13...Qb6! ; 13...Nc6? 14.0-0-0 Nxb4 15.Bc4 Qf5 (15...Qb6 16.Nxf7 Bf6 (16...Rxf7 17.Rd8+ Bxd8 18.Qe8# ) 17.Nd6++- ) ]

14.0-0-0 Nc6
[14...Qxa2 15.Bc4 Qa4 16.Bb3 Qe8 17.h4 ]

15.h4 h5 16.g4
[16.Bc4 Qf5 17.Qxf5 Bxf5 18.Nxc6 Bxb2+ 19.Kxb2 bxc6 20.Rhe1+/- ]

16...Bxe5 17.fxe5 Qxg4 18.Qe3 Nxb4 19.e6 Nd5
[19...Nxd3+ 20.cxd3 fxe6 21.Rdf1 Rf5 22.Rhg1 Kf7 23.Qh6 Ke7 24.Rxg4 Rxf1+ 25.Kd2 hxg4 26.Qg7+ Kd8 27.Bf6++- ]

20.exf7+ Rxf7
Diagram

21.Bc4! c6
[21...Nxe3 22.Rd8+ Kh7 23.Rh8# ; 21...Qxc4 22.Qe8+ Kh7 (22...Rf8 23.Qxg6# ) 23.Qh8# ]

22.Rxd5! Qxc4
[22...cxd5 23.Qe8+ Rf8 24.Bxd5+ Be6 25.Bxe6+ Qxe6 26.Qxe6+ Rf7 27.Rf1 Raf8 28.Qxg6+ Rg7 29.Qxg7# ]

23.Qe8+
it's mate next move 1-0