(1) Kosintseva,T (2451) - Koneru,H (2513) [B15]
FIDE WCh Women KO Elista RUS (3.3), 27.05.2005



1.e4 g6
The Modern Defense

2.d4 Bg7 3.Nc3 c6
The idea is d7-d5 inviting e4-e5

4.f4 d5 5.e5
Because Black now has access to f5 and g4

5...Nh6
...h5 is often played to prevent g4

6.Be3
Delaying Nf3 to avoid Bg4

6...f6 7.Be2 0-0 8.h4 Qb6 9.Na4 Qa5+ 10.c3 Bf5 11.Nc5 Nd7 12.Nxd7
[ 12.Nxb7 Qb6 13.Qb3 Rfb8 14.Nc5 Nxc5 15.Qxb6 Rxb6 16.dxc5 Rxb2-/+ ]

12...Bxd7 13.h5 Qb6 14.Qd2 Ng4 15.Bxg4 Bxg4 16.hxg6 hxg6
Black emerges with the two bishops and a good chance of reaching a favorable endgame after the exchange of rooks on the h-file.

17.Rh4 Bf5 18.Ne2 Kf7 19.Ng3 e6 20.0-0-0 Rh8 21.Rdh1 Rxh4 22.Rxh4 Rh8 23.Nxf5 exf5 24.Rxh8 Bxh8
Black's double pawn will disappear, and Ms. Humpy has the better bishop.

25.Qe2 Qd8 26.g4 Qc8 27.gxf5 Qxf5 28.Bd2 Qh3 29.c4 Bg7
Seeking activity for the bishop

30.b3 Qd7 31.Be3 Qe7 32.cxd5 cxd5 33.Qb5 Qc7+ 34.Kd2 Qc6
With the white pawns fixed on dark squares, black has all the chances in the queenless endgame.

35.Qa5 a6 36.Qd8 Bf8 37.Ke2 Be7 38.Qh8 Qc2+ 39.Kf3 Qe4+ 40.Kf2 fxe5 41.fxe5 Bh4+ 42.Ke2 Bg5 43.Qh3 Qc2+ 44.Kf3 Qe4+ 45.Ke2 Ke7
Diagram

46.Qg3!?
[ 46.Qh7+= ]

46...Qc2+ 47.Kf3??
[ 47.Kf1 Qb1+ 48.Kg2 Qxa2+ 49.Kh3 Bxe3 50.Qxe3 Qc2 51.Kg3-/+ ]

47...Bxe3 48.Qh4+
[ 48.Kxe3 Qe4+ 49.Kd2 Qxd4+-+ ]

48...g5 0-1