Rabu, 09 Mei 2012

Capablanca Memorial (Round 4)

Vladimir Potkin against Viktor Laznicka

Potkin,Vladimir (2642) - Laznicka,Viktor (2693) [B94]
47th Capablanca Mem Elite Havana CUB (4), 07.05.2012
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Qe2 h6 8.Bh4 e6 9.0-0-0 b5
[9...Be7 10.f4 Qc7 11.Bg3 Nc5 12.e5 dxe5 13.fxe5 Nh7 14.Ne4 Bd7 15.Nd6+ Bxd6 16.exd6 Qa5 17.Kb1 0-0 18.Be5 f6 19.Bg3 Ng5 20.Nb3 Nxb3 21.axb3 Rac8 22.Qh5 Qc5 23.Bd3 Bb5 24.Qe2 Bd7 25.Rd2 b5 26.h4 Nf7 27.Bg6 a5 28.Rhd1 a4 29.Bf2 Qc6 30.Bxf7+ Rxf7 31.Qf3 axb3 32.Qxb3 Rff8 33.g4 Ra8 34.Rd3 Ra4 35.Rd4 Rfa8 36.Rxa4 Rxa4 37.g5 Qa8 38.Kc1 Qg2 39.Qg3 Qxg3 40.Bxg3 hxg5 41.hxg5 Rg4 42.Rd3 Rxg5 43.Ra3 Kf7 44.Ra7 Rxg3 45.Rxd7+ Ke8 46.Rb7 Rg5 47.b3 Kd8 48.Re7 e5 49.Kd2 Rg4 50.Ke3 b4 51.Kf3 Rf4+ 52.Ke3 g5 53.Rf7 f5 54.Re7 Re4+ 55.Kd3 g4 56.Rf7 Rf4 57.Re7 g3 58.Ke2 e4 59.Rg7 Rg4 0-1 Tayar,J (2335)-Molner,M (2447)/Los Angeles USA 2011/ The Week in Chess 879]
10.f4
[10.Nd5 Bb7 11.Nxf6+ gxf6 12.Qh5 Qe7 13.Bxb5 axb5 14.Nxb5 Rxa2 15.Kb1 Ra4 16.Nxd6+ Qxd6 17.Rxd6 Bxd6 18.Bxf6 Rg8 19.Rd1 Rg6 20.Rxd6 Rxf6 21.Qb5 Ra7 22.Rxd7 Bc6 23.Qb8+ Kxd7 24.Qxa7+ Ke8 25.e5 Rf5 26.Qb8+ 1-0 Laflamme,S (1903)-Fecteau,M (1934)/Charlesbourg 2004/EXT 2006]
10...Qc7 11.f5 Nc5 12.fxe6 fxe6 13.e5 dxe5 14.Bg3 b4 15.Bxe5 Qf7 16.Nb1 Bb7 17.Nd2 Be7 18.Nc4 Nfe4 19.Nf3 0-0 20.Qe3 Rad8 21.Rxd8 Rxd8 22.Be2 Qg6 23.Re1 Bd5 24.g3 Rf8 25.Bf4 Qe8 26.Nfd2 Nxd2 27.Qxd2 Ne4 28.Qd4 Qa4 29.Kb1
Viktor Laznicka
_____rk_
____b_p_
p___p__p
___b____
qpNQnB__
______P_
PPP_B__P
_K__R___
Vladimir Potkin
Position after 29.Kb1
Black has the two bishops and the initiative.
[29.Bg4 Bf6 30.Bxe6+ Bxe6 31.Qxe4 Re8 32.a3 Bf7 33.Ne5 g5 34.Qxb4 Qxb4 35.axb4 gxf4 36.gxf4]
29...Rc8 30.Rd1 Bc5
There is better.
[30...Nc3+ 31.bxc3 bxc3; 30...Bf6]
31.Qe5 Bd6 32.b3?
[32.Qd4 and play continues.]
32...Bxe5 33.bxa4 Nc3+ 0-1
Vassily Ivanchuk against Ian Nepomniachtchi
Ivanchuk,Vassily (2764) - Nepomniachtchi,Ian (2716) [B90]
47th Capablanca Mem Elite Havana CUB (4), 07.05.2012
1.Nf3 c5 2.e4 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 Ng4 7.Bc1 Nf6 8.Be3 Ng4 9.Bg5 h6 10.Bh4 g5 11.Bg3 Bg7 12.Nb3
[12.Be2]
12...Nc6
[12...Bxc3+ 13.bxc3 Qc7 14.c4 Ne5 15.c5 dxc5 16.h4 g4 17.Be2 Nbd7 18.Qd5 Qd6 19.0-0 Qxd5 20.exd5 b6 21.Rfe1 Rg8 1/2-1/2 Morano,A (2350)-Rosso,P (2225)/ Eclipse email 2000/Corr 2004]
13.h4N
[13.h3; 13.Be2]
13...gxh4 14.Rxh4 h5 15.Qd2 Be6 16.f3 Nge5 17.Bf2 Bc4 18.Nd5 e6 19.Nb6 Bxf1 20.Kxf1 Rb8 21.Rd1 Qf6 22.Rh3 h4 23.Nd4 Rd8 24.Nxc6 bxc6 25.Qb4 Ng6 26.Bd4 e5 27.Be3 0-0 28.Qa4 d5 29.exd5 e4 30.c3 Rfe8 31.dxc6
Ian Nepomniachtchi
___rr_k_
_____pb_
pNP__qn_
________
Q___p__p
__P_BP_R
PP____P_
___R_K__
Vassily Ivanchuk
Position after 31.dxc6
A difficult position but it seems black just has enough to hold on.
31...Rxd1+ 32.Qxd1 Qxc6 33.Qa4 Qb5+ 34.Qxb5 axb5 35.Nd5 exf3 36.Rxf3 Rd8 37.Rf5 Ne5 38.Ne7+ Kf8 39.Bc5 Ke8 40.Ke2 f6 41.Bb4 Kf7 42.Rh5 Bf8 43.Rxh4 Re8 44.Rh7+ Ke6 45.Rh8 Kf7 46.Rh7+ Ke6 47.Rh8 Kf7 1/2-1/2

Leinier Dominguez Perez against Yuniesky Quesada Perez
Dominguez Perez,Leinier (2725) - Quesada Perez,Yuniesky (2625) [C67]
47th Capablanca Mem Elite Havana CUB (4), 07.05.2012
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.0-0 Nxe4 5.d4 Nd6 6.Bxc6 dxc6 7.dxe5 Nf5 8.Qxd8+ Kxd8 9.Nc3 Ke8 10.h3 h5 11.Bg5 Be6 12.Rad1 Be7 13.Rd2 Rd8 14.Rfd1 Rxd2 15.Rxd2 h4 16.Bxe7 Nxe7 17.Ng5 Bc8 18.Ne2
Yuniesky Quesada Perez
__b_k__r
ppp_npp_
__p_____
____P_N_
_______p
_______P
PPPRNPP_
______K_
Leinier Dominguez Perez
Position after 18.Ne2
New move.
[18.f4 Nf5 19.Kf2 Ke7 20.Nd1 b6 21.Ne3 a5 22.Nxf5+ Bxf5 23.Ke3 Rh6 24.Nf3 c5 25.Ng5 Rh8 26.Nf3 Rh6 27.Ng5 Rh8 28.Nf3 Rh6 1/2-1/2 Leko,P (2747)-Alekseev,E (2715)/Elista RUS 2008/The Week in Chess 738]
18...Ng6 19.f4 Ne7 20.Ne4 Nf5 21.Kf2 Ke7 22.Nd4 Nxd4 23.Rxd4 b6 24.Ng5 c5 25.Rd2 Bf5 26.Ke3 Rh6 27.a3 Rh8 28.Nf3 a5 29.Ng5 f6 30.Nf3 Kf7 31.Kf2 Ke7 32.Ke3 Kf7 33.Kf2 Ke7 34.Ke3 1/2-1/2
47th Capablanca Mem Elite Havana (CUB), 3-14 v 2012cat. XVIII (2694)
123456
1.Ivanchuk, VassilygUKR2764**1...½.½.½.2772
2.Dominguez Perez, LeiniergCUB27250.**1...½.1.2776
3.Laznicka, ViktorgCZE2693..0.**½.1.1.2772
4.Nepomniachtchi, IangRUS2716½...½.**½.½.22681
5.Quesada Perez, YunieskygCUB2625½.½.0.½.**..2637
6.Potkin, VladimirgRUS2642½.0.0.½...**12531
Round 4 (May 7, 2012)
Ivanchuk, Vassily- Nepomniachtchi, Ian½-½47B90Sicilian Najdorf Variation
Dominguez Perez, Leinier- Quesada Perez, Yuniesky½-½34C67Ruy Lopez Berlin
Potkin, Vladimir- Laznicka, Viktor0-133B94Sicilian Najdorf with 6.Bg5





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