Η παρτίδα του Στράτου Γρίβα στον 4ο γύρο της Β' Εθνικής

Round 4 (08.02.2009)

S.O. Neas Filadelfias – A.E.K.

Board 1

□ Balaskas,Nikolaos (2244)

■ Grivas,Efstratios (2505)

A08 Ch-tt-GRE Athens (3), 08.02.2009

1.e4 c5 2.Nf3 Nc6 3.d3 e6 4.g3 d5 5.Nbd2 Bd6 6.Bg2 Nge7 7.0–0 0–0 8.Re1

8.Nh4 Bd7 (8...b5 9.f4 f6 10.exd5?! exd5 11.f5 Rb8 12.g4?! Qc7 13.Ndf3 Bd7 14.Bh3 Ne5 15.Bf4 d4 -/+ ½–½ Managadze,N-Grivas,E/Athens 2002) 9.f4 f6 (9...b5 10.c3 Rb8 11.Qh5 f5 oo Dimitrov,P-Grivas,E/Plovdiv 1983) 10.f5 Ne5 11.fxe6 Bxe6 12.exd5 Bxd5 13.Bxd5+ Nxd5 14.Ne4 Re8 15.Nf5 Bf8 = Barbero,G-Sokolov,A/Switzerland 1999.

8...Bc7

8...f5 9.c3 f4 10.e5 Bc7 11.d4 fxg3 12.hxg3 cxd4 13.cxd4 Nf5 14.Nb3 = Grivas,E-Ambakoumkin,G/Athens 1981.

9.c3

9.Nf1 b6 10.exd5 exd5 11.d4 Bf5 12.Be3 c4 13.Qd2 Ng6 = Ramsingh,Y-Grivas,E/Belfort 1983.

9...a5

a) 9...b6 10.Nf1?! Ba6 11.e5 d4 12.c4 Qd7 13.h4 Ng6 14.Bf4 Bb7 15.h5 Nxf4 16.gxf4 f6 -/+ Doudonis,H-Grivas,E/Athens 1984.

b) 9...Rb8 10.a3 a5 11.a4 b6 12.Qc2?! Ba6 13.Bf1 Qd7 14.Nb1 Ng6 15.Na3 f5 =+ Makropoulos,G-Grivas,E/Athens 1989.

10.a4 b6 11.exd5

a) 11.e5?! Ba6 12.d4 cxd4 =+ Yurtaev,L-Ehlvest,J/Volgodonsk 1983.

b) 11.h4 Ba6 12.exd5 Nxd5 13.Nc4 Ra7 14.Na3 Bb8 15.Nb5 Rd7 oo Lau,R-Vatter,H/Germany 1988.

11...exd5 12.Nb1

a) 12.Nf1 h6 13.d4 Be6 14.b3 Rc8 15.Ba3 Bd6 16.Ne3 cxd4 17.Nxd4 Nxd4 18.Bxd6 Qxd6 19.Qxd4 Qc5 20.Rac1 Rfd8 = Baeumlin,F-Sokolov,A/St Chely d'Aubrac 2008.

b) 12.Nb3 Bg4 13.d4 Bd6 14.h3 Bh5 15.Be3 c4 16.Nbd2 f6 17.b3 cxb3 18.Qxb3 Bf7 oo Zolnierowicz,K-Haba,P/Ceske Budejovice 1995.

c) 12.d4 cxd4 13.Nxd4 Nxd4 14.cxd4 Nc6 15.Nf1 Bf5 16.Ne3 Be4 = Siepelt,H-Raupp,T/Bad Wildbad 1993.

12...Bf5N (D)

12...Bg4 13.Na3 Rc8 (13...d4?! 14.Nb5 dxc3 15.bxc3 Rc8 16.Ba3 +/- Vaganian,R-Sokolov,A/Minsk 1986) 14.Nb5 Bb8 15.d4 (15.h3 Bf5 16.Be3 Qd7 17.Kh2 h6 = Haapasalo,J-Kiik,K/Espoo 1990) 15...Qd7 (15...c4 16.b3 Siepelt,H-Gofshtein,L/Wuerzburg 1996) 16.b3 Rfe8 oo Balaskas,N-Grivas,E/Afitos 1991.

13.Na3 Rc8 14.Nb5 Bb8 15.d4 Re8?!

15...Be4 16.Bh3 Bf5 =.

16.Be3

16.dxc5 bxc5 17.Be3 Qb6 oo.

16...c4 17.Qd2

17.b3 cxb3 18.Qxb3 Be4 19.Nh4 Qd7 oo.

17...Ng6 18.h4! h5 19.Kh1?

19.Nh2! Nf8 (19...Be4 20.Bh3 f5 21.Bg5 Qd7 22.Qd1 +/-) 20.Bf4 Qd7 21.Bxb8 Rxb8 22.Nf1 +=.

19...Qd7!

19...Be4 20.Ng5 Bxg2+ 21.Kxg2 f6 22.Nh3 =.

20.Ng1

20.Ne5 Ngxe5 21.dxe5 Nxe5 22.Qxd5 Nd3 -/+.

20...Be4 21.Qd1 Qf5 22.Bxe4?

22.Nf3 f6 23.Kg1 Re6 =+.

22...dxe4?

22...Rxe4 23.Kg2 (23.Qf3?! Nxh4! -+) 23...Rce8 24.Qf3 Nxh4+ 25.gxh4 Rg4+ -+.

23.Kg2

23.d5 Nce5 24.Nd4 Qd7 25.Qxh5 Nd3 26.Re2 Re5 -+.

23...Nce7! 24.Nh3 Nd5 25.Qe2 Rc6 26.Na3? (D)

26.Bg5 f6 27.Bd2 Rce6 -/+.

26...Nxh4+! -+ 27.gxh4 Rg6+ 28.Bg5

28.Ng5 f6 29.Nxc4 fxg5 -+.

28...f6 29.Nxc4

29.f4 fxg5 30.fxg5 Nf4+ 31.Nxf4 Qxf4 -+ ; 29.Rh1 fxg5 30.hxg5 Rxg5+ 31.Kf1 Rg6 -+.

29...fxg5 30.Ne5

30.hxg5 Nf4+ 31.Nxf4 Qxg5+ -+.

30...Nf4+ 31.Nxf4 gxf4+ 32.Nxg6 f3+

0–1