MESSAGE PART I
Hello Chessfriends, At the IndoBenoni the Bg5 variation is an important line and black have an important decission over the board: ask to white bishop with h6 and g5 or to make other standard plan with a solid development and to push over the queen flank and maybe to delayed the moves h6,g5 only when to It is the necessary moment. I think that the first plan have more risk than the second plan. Here I show the analysis of my chessfriend Marco Bulgarini over this matter with the second plan mentioned how main line :
Bulgarini, Marco [A61] 1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 d6 5.Nc3 exd5 6.cxd5 g6 7.Bg5 Bg7
[7...h6 8.Bh4 (8.Bf4 Nh5 9.Bg3 Bg7 10.Nd2 Nxg3 11.hxg3 Nd7 12.e3 00 13.Be2 Ne5 14.a4 b6 15.Qc2 Qe7 16.00 h5!³ FilipRajkovic, Smederevska Palanca 1978) A) 8...Bg7 A1) 9.e4!? A71; A2) 9.Nd2 A2a) 9...a6?! 10.a4 g5 11.Bg3 Nh5 12.Nc4 Nxg3 13.hxg3 Bf5 (13...f5?! 14.Qb3! 00 15.Qb6±) 14.e3 00 15.Bd3 Bxd3 16.Qxd3²; A2b) 9...Qe7 10.e4 Nbd7 11.Be2 g5 12.Bg3 Ne5 13.00 Bd7 14.a4² HorvathGarcia Palermo, Oakham 1986; A2c) 9...g5 10.Bg3 Nh5 11.Qa4+ Kf8 12.e3 (12.e4 Nxg3 13.hxg3 a6 14.Be2 Nd7 15.Qc2 Ne5 16.00 h5„) A2c1) 12...a6 13.Qc2 b5 14.a4 b4 15.Nce4!? Bf5 (15...Nxg3 16.Nxg3±) 16.Bd3 Nxg3 17.hxg3 Nd7 18.00² CebaloJ.Horvath, Zenica 1987; A2c2) 12...Nxg3 13.hxg3 Nd7 14.Qc2 (14.Nc4 Ne5 15.Nxe5 Bxe5 16.Qc2 g4!=) A2c21) 14...a6 15.a4 Rb8 16.Be2 Nf6 17.Ra3?! (17.a5!?) 17...Ng4 18.Rb3 b6 19.Nc4 Ne5 20.Na3 g4!³ GarciaTal, Havana 1963; A2c22) 14...Ne5 A2c221) 15.Nc4 a6 16.a4 Rb8 17.Nxe5 Bxe5 18.Bd3 (18.f4 Bg7 19.Bd3 b5 20.axb5 axb5 21.Bxb5 h5 22.00 Qe7 23.fxg5 Qxe3+ 24.Kh1 Qxg3 25.Rxf7+ Kxf7 26.Ra7+ Kf8 01 Heinis,VCvitan,O/Biel 2002 (26)) 18...h5= AdlerCebalo, Bern 1988; A2c222) 15.Be2 15...a6 16.a4 h5!? (16...g4 17.Rh5! Rb8 18.a5±; 16...Bd7 17.a5 Rb8 18.e4²) 17.a5 (17.Rxh5 Rxh5 18.Bxh5 g4©) 17...g4=; A3) 9.e3 A3a) 9...g5 10.Bg3 Nh5 ‚ 8... g5; A3b) 9...a6 10.a4 (10.Nd2 b5=) 10...Bg4!? 11.Qc2 (11.Be2!?) 11...Bxf3 12.gxf3 Nbd7 13.a5 (13.f4!?) 13...00 14.f4 b5 15.axb6 Qxb6= HartstonD.Bronstein, Tallinn 1979; A3c) 9...Qb6!? 10.Rb1 Bg4 11.Be2 Bxf3 12.Bxf3 00 13.00 Nbd7 14.Bg3 Rfc8= YuferovMagerramov, USSR 1978; A3d) 9...00 10.Nd2 A3d1) 10...a6 11.a4 Nbd7 12.Be2 A3d11) 12...Ne5?! 13.f4 …Neg4 14.Bxg4 Bxg4 15.Bxf6 Qc8 16.Bxg7! Bxd1 17.Bxf8 Kxf8 18.Rxd1±; A3d12) 12...Re8 13.00 Qc7 14.e4 (14.Rc1 Ne5 15.h3 g5 16.Bg3 Bf5 17.Bxe5 Rxe5 18.Nc4 Re7= CebaloLjubojevic, Reggio Emilia 1985) 14...Rb8 15.f4 c4 16.Kh1 b5 17.axb5 axb5 18.e5! dxe5 19.fxe5ƒ CzabolcsiArmas, FRA tch 1993; A3d13) 12...Qe7 13.00 Rb8 14.Qc2 Rd8 15.h3²; A3d2) 10...Nbd7 11.Be2 Qe7 (11...Ne5 12.Nde4!? Qe7 13.00 a6 14.a4 Re8 15.a5² Bf5? 16.Nxf6+ Bxf6 17.Bxf6 Qxf6 18.f4! Nd7 19.g4 Be4 20.Ra4!+ LechtynsktBoensch, Halle 1981) 12.00 g5 (12...a6!?) 13.Bg3 A3d21) 13...Ne5!? 14.a4 Bf5 15.e4 Bd7 16.h3!?² (16.Re1 Rfe8 17.Nf1 h5! 18.f3 h4 19.Bf2 Nh5³ BjorkRomanishin, Stockholm tt 1986) ; A3d22) 13...Ne8 14.e4! Ne5 15.Nc4 f5 16.exf5 Bxf5 17.Nxe5 Bxe5 18.Bd3²; A3d3) 10...Na6 A3d31) 11.Bc4 Nc7 12.00 A3d311) 12...Re8 13.a4 A3d3111) 13...Bd7 14.Qe2 (14.e4!?) 14...Rb8 15.Rfc1 a6 16.a5 b5 17.axb6 Rxb6 18.Ra2 Qb8 19.b3 Qb7= StempinStoica, Polanica Zdroj 1983; A3d3112) 13...Rb8 14.e4 g5 15.Bg3 a6 16.a5 b5 17.axb6 Rxb6 18.Bd3! Nb5 19.Nc4± T.GeorgadzeDorfman, Erevan zt 1982; A3d312) 12...a6 13.a4 Rb8 14.a5 b5 15.axb6 Rxb6÷ 16.Ra2 Rb4 17.e4 Nb5 18.f4 g5 19.fxg5 Ng4 20.Bxb5 hxg5 21.Bxa6 gxh4 22.Bxc8 Qxc8 23.Qe1 f5 24.Qxh4 Rd4 25.Ra7 Qd8 26.Qxd8 Rxd8 27.Rxf5 Nh6 28.Rg5 Nf7 29.Rxg7+ Kxg7 30.Nf3 Kf6 31.Nxd4 cxd4 32.Nd1 Rc8 33.Kf1 Ng5 34.Nf2 Rc1+ 35.Ke2 Rc2+ 36.Ke1 Rxb2 37.h4 Nf7 38.Ra4 Rb1+ 39.Ke2 Rb2+ 40.Ke1 Rb1+ 41.Nd1 Ke5 42.Kd2 Rb3 43.Ra7 Kf6 44.Ra4 Ke5 45.Nf2 Rb2+ 46.Ke1 Rb1+ 47.Ke2 Rb2+ 48.Kf3 Rb3+ 49.Kg4 d3 50.Kf3 d2+ 51.Ke2 Rg3 52.Kxd2 Rxg2 53.Ke2 Rg3 54.Ra7 Kf6 55.e5+ Kxe5 56.Rxf7 Kxd5 57.Rf5+ Ke6 58.Rf6+ Ke5 59.Rxd6 10 Efimov,IGalego,L/Lido Estensi 2002 (59); A3d32) 11.Nc4 A3d321) 11...Nc7 12.a4 b6 (12...Qe7 13.Be2 b6 14.00 Ba6 15.Re1 Bxc4 16.Bxc4 a6 17.e4 g5 18.Bg3±) A3d3211) 13.Be2 Ba6 14.Na3!? Bxe2 15.Qxe2 g5?! (15...Qd7!?) 16.Bg3 Ncxd5 17.Nxd5 Nxd5 CebaloFranco, Luzern 1989 18.Nc4!²; A3d3212) 13.Bd3 13...Ba6 14.00 Qd7!? 15.e4 Bxc4 16.Bxc4 a6= BalashovGarcia Palermo, Malmo 1987; A3d322) 11...Re8 12.Be2 Nc7 13.a4 b6 14.00 Ba6 15.Qb3 Qe7 16.Rfd1 Bxc4 17.Bxc4 g5 18.Bg3 Nh5 19.Bd3 Nxg3 20.hxg3 h5= TukmakovLechtinsky, Vilnius 1978; B) 8...a6 9.a4 g5 10.Bg3 Nh5 11.Nd2 Nd7 12.Nc4 Nxg3 13.hxg3 Nb6 14.Na3 Bd7 15.a5 Nc8 16.Nc4 b5 17.axb6 Nxb6 18.e3 Nxc4 19.Bxc4 Bg7 20.Qd3 00 21.00 a5 22.Ra2 f5 23.Bb5 Bc8 24.Ne2 Ra7 25.b3 Qb6 26.Bc4 Bd7 27.Nc3 Be8 28.Re2 Re7 29.Qc2 Kh8 30.Bd3 Qb4 31.Rc1 Bh5 32.Ree1 f4 33.Na2 Qb7 34.gxf4 gxf4 35.e4 Bd4 36.Nc3 Rg7 37.Nb5 01 Nikolac,JCebalo,M/Velika Gorica 2002 (37); C) 8...Nbd7 9.Nd2 g5 10.Bg3 Nh5;
END PART I
Best Regards, Sergev
