Friday, February 26, 2010

A Complete Guide to Grivas Sicilian

.
http://www.gambitbooks.com/bigimg/Grivas_750.jpg

In the book "A Complete Guide to Grivas Sicilian (2005)," the author Efstratios Grivas, after:

[ECO B33b] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 5.Nb3 Nf6 6.Nc3 e6 7.a3 Qc7



only examines the variations that arises after:

A) 8.Be3 (and Be2)
B) 8.Be3 (and Bd3)
C) 8.Bd3 (and Bd2)

But "Robbolito g3" suggest instead this line:

8.f4 d5 (N, 8...d6) 9.e5 Nd7 10.Nb5 Qd8 11.Be3 a6 12. N5d4 Be7
(with score: + 0.24)



which seems interesting and need further investigation.

You can find the actual theory here:

Grivas Sicilian (html)

[This blog come from the author of the Practical Encyclopedia of Gambits]

Monday, February 22, 2010

Reti: Lisitsin gambit deferred, an interesting game

ECO: A04
Reti: Lisitsin gambit deferred - an interesting game




[Event ""]
[Site ""]
[Date "1999.??.??"]
[Round "?"]
[White "Salgado Allaria Carlos"]
[Black "Gonzalez Velez Fermin"]
[Result "0-1"]
[WhiteElo "2321"]
[BlackElo "2344"]
[ECO "A04"]
[Annotator "ROBBOLITO"]
[Source ""]
[Remark ""]

1.Nf3 f5 2.d3 Nf6 3.e4
{ Move out of book ( Bg5 100%)}
3...fxe4 4.dxe4 Nxe4 5.Bd3 Nf6 6.Ng5 g6 7.h4 d5 8.h5 Bg4 9.f3 Bxh5 10.g4 Qd6 11.gxh5 Bh6 12.Rg1 Qh2 13.Be3 Bxg5 14.Rxg5 Qh4+ 15.Kf1 $201 Nc6 $6 $14
$201
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.38 / +0.99}
( 15...d4 16.Bc1 Qh1+ 17.Rg1 Qxh5 18.Kg2 Nc6 19.Rh1 Qd5 20.Qe2 O-O-O 21.Bc4 Qc5 22.Bh6 Kb8 23.Nd2 a6 24.a4 g5 25.Bg7 Rhe8 $10 )
16.Bb5 $6 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.99 / +0.30}
( 16.hxg6 d4 17.Bd2 Qh1+ 18.Rg1 Qh3+ 19.Kf2 hxg6 20.Bxg6+ Kd7 21.Qf1 Qh4+ 22.Ke2 Ne5 23.Bf5+ e6 24.Bg5 Qh5 25.Bxf6 Qxf5 26.Bxh8 Qxc2+ 27.Nd2 Rxh8 28.Rg7+ Kc8 $14 )
16...O-O-O 17.Bxc6 bxc6 $201 18.Qd4 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.31 / +0.00}
( 18.Kg2 d4 19.Bd2 Rd5 20.Rxd5 cxd5 21.Qe1 Qxe1 22.Bxe1 Nxh5 23.Bg3 Nxg3 24.Kxg3 Kd7 25.Nd2 e5 26.Rh1 h5 27.Nb3 Rb8 28.f4 exf4+ 29.Kxf4 $10 )
18...Ne4 19.Kg2 $201 e5 $10 $201
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.00 / +0.34}
( 19...c5 20.Qa4 Qe1 21.fxe4 Qxe3 22.Qa6+ Kb8 23.Qb5+ Kc8 24.Re5 gxh5 25.Qa6+ Kb8 26.Qb5+ Kc8 $10 )
20.Rxe5 $4 $19
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.34 / -4.96}
( 20.Qxe5 Nxg5 21.Bxg5 Qxh5 22.Qe6+ Rd7 23.Bf6 Rf8 24.Nc3 Qf5 25.Qxf5 gxf5 26.Bd4 Re8 27.Rh1 a5 28.Rh6 Rg8+ 29.Kf2 Rg6 30.Rh5 f4 31.Ne2 $10 )
20...Qg3+ 21.Kf1 Qxf3+ 22.Ke1 $201 Rhf8 $6 $19
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -5.12 / -4.25}
( 22...c5 23.Qd3 Qg3+ 24.Kd1 Qxe5 25.Qa6+ Kd7 26.Nd2 Qxh5+ 27.Qe2 Qh1+ 28.Qe1 Qxe1+ 29.Kxe1 Rhe8 30.Nxe4 Rxe4 31.Kd2 d4 32.Bh6 Rb8 33.b3 Rh4 34.Bg5 Rg4 35.Bf6 Rg2+ 36.Kd3 Re8 $19 )
23.Nd2 Qh1+ 24.Ke2 Qh2+ $201 25.Kd3 $4 $19
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -4.85 / -8.61}
( 25.Kd1 c5 26.Qa4 Qxe5 27.Qa6+ Kd7 28.Nxe4 dxe4 29.Kc1 Qxh5 30.b4 Rb8 31.a3 cxb4 32.axb4 Rxb4 33.Ra4 Rfb8 34.Ra1 Rb1+ 35.Rxb1 Qh1+ 36.Kd2 Rxb1 37.Qa4+ Ke7 38.Bg5+ Kf7 39.Qxa7 $19 )
25...c5 26.Qxd5 Qxe5
( 26...Qxe5 { 13:-17.80} 27.c4 Rxd5+ 28.cxd5 Nxd2 29.Rc1 Qxd5+ 30.Kc2 Nc4 31.Kb1 Nxe3 32.a3 Rf1 33.Rxf1 Qd3+ 34.Ka2 Qc4+ 35.b3 Qe2+ 36.Ka1 Qxf1+ 37.Kb2 Qe2+ 38.Kb1 Qc2+ 39.Ka1 Qxb3 40.hxg6 Qxa3+ 41.Kb1 hxg6 )
0-1

Lisitsin gambit deferred, theory HERE (as of January 31, 2010):
http://studimonetari.org/edg/lisitsin2.html
(see note # 28)

Thursday, February 4, 2010

Koneru-Kamsky, D11, Gibraltar 2010.02.03

[Event "Gibraltar"]
[Date "2010.02.03"]
[Round "9"]
[White "Koneru, H."]
[Black "Kamsky, G."]
[Result "1/2-1/2"]
[ECO "D11"]
[WhiteElo "2614"]
[BlackElo "2693"]

1.d4 d5 2.c4 c6 3.e3 Nf6 4.Nf3 g6 5.Nc3 Bg7 6.Be2 O-O 7.O-O e6 8.Qc2 Nbd7 9.b3
{ Move out of book ( Rd1 89% e4 11%)}
9...Re8 10.Bb2 a6 $201 11.e4 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.40 / +0.11}
( 11.Bd3 Qe7 12.Rad1 dxc4 13.bxc4 b5 14.Ne2 Bb7 15.h3 Nb6 16.Ne5 bxc4 17.Nxc4 Nxc4 18.Qxc4 Rab8 19.Qc5 Nd5 $10 )
11...Nxe4 12.Nxe4 dxe4 13.Qxe4 $201 c5 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.00 / +0.37}
( 13...e5 14.dxe5 Nxe5 15.Bxe5 Qe7 16.Rae1 Bf5 17.Qe3 Bxe5 18.g4 Qc7 19.Nxe5 Rxe5 20.Qf4 Qe7 21.gxf5 Rxe2 22.f6 Qe6 23.Qh6 Qg4+ 24.Kh1 Qf3+ 25.Kg1 Qg4+ $10 )
14.Rad1 Qc7 15.Qb1 cxd4 16.Nxd4 Nc5 17.Nc2 a5 18.Bxg7 Kxg7 19.Ne3 b6 20.Bf3 $201 Ra7 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.23 / +0.46}
( 20...Bb7 21.Qb2+ f6 22.Ng4 Rf8 23.Bxb7 Qxb7 24.Qd2 g5 25.f3 Rf7 26.Qb2 Qc7 27.h4 gxh4 28.Qd2 Kh8 29.Qh6 f5 30.Nf6 h3 $10 )
21.a3 a4 22.Qb2+ f6 23.b4 Nb3 24.Rfe1 e5 25.Bd5 Bd7 $201 26.Rd3 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.42 / +0.19}
( 26.Qc3 Nd4 27.Qd3 Nb3 28.Bf3 Nd4 29.Nd5 Qc6 30.Be4 f5 31.Bf3 Rb7 32.Rd2 Bc8 33.Bd1 Rd7 34.f4 $10 )
26...Qc8 $201 27.c5 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.34 / -0.07}
( 27.Red1 Qc7 28.Rc3 Qc8 29.h3 Be6 30.Bxe6 Rxe6 31.Nd5 Rd7 32.Qe2 Nd4 33.Qd3 Rc6 34.b5 $10 )
27...bxc5 28.Bxb3 axb3 29.Rxb3 $201 c4 $6 $14
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: -0.03 / +0.64}
( 29...cxb4 30.axb4 Bb5 31.Rc3 Qb7 32.Rd1 Re7 33.Rc5 Rd7 34.Qc1 Rxd1+ 35.Qxd1 Ra6 36.Rc1 Rc6 37.Rc5 Rxc5 38.bxc5 Bc6 39.f3 Qb2 40.Qc2 Qxc2 41.Nxc2 $10 )
30.Rc3 Bb5 $201 31.Qc1 $6 $10
{ RobboLito 0.085g3l x86_64: Analysis reports blunder, with score change from/to: +0.72 / +0.12}
( 31.Nxc4 Bxc4 32.Qc1 Rc7 33.Re4 Rd7 34.Rcxc4 Qa6 35.Re1 Ra8 36.Rc3 Qa4 37.Qe3 Rd1 38.g3 Rad8 39.Rc7+ R8d7 40.Rxd7+ Qxd7 41.Rxd1 Qxd1+ 42.Kg2 Qd5+ 43.Qf3 $14 )
31...Rc7 32.Nd5 Ra7 33.a4 Bxa4 34.Nb6 Qb8 35.Nxa4 Rxa4 36.Rxc4 Re7 37.Qc3
( 37.Qc3 { 18:+0.00} 37...Qb6 38.Rd1 Ra2 39.Rc5 Ra4 40.Rc4 )
*