MT Sustarsic: Win against SIM Karacsony, Zsolt of Romania

Win against SIM Karacsony, Zsolt of Romania http://www.iccf-webchess.com/MakeAMove.aspx?id=297385. He is only 32 years old, and works in University of Miskolc as Assistant Professor in Mathematics. The game started as a peaceful Catalan

1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 Be7 5.Nf3 O-O 6.O-O dxc4 7.Qc2 a6 8.Qxc4 b5 9.Qc2 Bb7 10.Bf4 Nc6 11.Nc3 Nb4 12.Qd2 c5

The ChessOK opening tree http://www.chessok.com/?page_id=352 gives only 13.a3 and 13.Rfd1 

13.dxc5 Bxc5 14.Qxd8 Novelty?

( 14.Rad1 Qb6 15.Bd6 Bxd6 16.Qxd6 Nc6 17.Qf4 Rad8 18.Rxd8 Rxd8 19.Rd1 Rxd1+ 20.Nxd1 Qd8 1/2-1/2(25) Nierobisz, Jim (2371) - Myers, David R (2411) / 1st Webchess Open Tournament - Final (?), ICCF 2009 )

( 14.Rac1 Rc8 15.a3 Nbd5 16.Nxd5 Qxd5 17.b4 Bb6 18.Qxd5 Nxd5 19.Be5 Rfd8 20.Bd4 h6 1-0(66) Taksrud, Vidar (2157) - Johansson, Jan (Vنsterهs) (2075) / Sweden - Rest of the World (?), ICCF 2008 )

I decided to exchange queens, since nowadays that's the only way to outplay engines.

14...Rfxd8 15.a4 Ne4 16.Nxe4 Bxe4 17.Rfc1 Nc2 18.Nd2 Nxa1 19.Bxe4 Rac8 20.Rxa1 e5 21.Bf5 exf4 22.Bxc8 Rxc8 23.axb5 axb5 24.gxf4 Bf8

White is temporarily a pawn up, but he cannot retain it. However, Black misplays the ending

25.Nf3 Rc2 26.e3 Rxb2 27.Ra8 b4 28.Kg2 g6 29.Ne5 Rd2 30.Rb8 f5 31.h4 Rd1 32.Nf3 Rc1 33.Nd4 Kf7 34.Rb7+ Kg8 35.Rb8 Kf7

This move was accompanied by a draw offer, which was declined.

36.h5 gxh5 37.Rb5 h4 38.Rxf5+ Ke8 39.Rb5 Rd1?

Necessary was 39...Kd7. Now Black goes rapidly downhill.

40.Rb8+ Kf7 41.Rb7+ Ke8 42.f5 Bc5 43.Ne6 Be7 44.e4 Rd3 45.f4 Rd2+ 46.Kg1 Rd1+ 47.Kf2 h3 48.Kg3 Rd3+ 49.Kh2 Bh4 50.Ng7+ Kd8 51.Nh5 b3 52.f6 1-0

SIM Korze, Dr. Danilo, SIM Voiculescu, Costel and GM Szczepanski, Zbigniew jointly lead the tournament with 8.0 points each, see http://www.iccf-webchess.com/EventCrossTable.aspx?id=22830:

Curiously, all three of them have achieved GM norms and the first two achieve the GM title!