630. Satranç Yayınları. West Virginia Chess Association Yearbook

West Virginia Chess Association Yearbook, 1942-1947 yılları arasında 4 cilt yayınlanmıştır. Daha sonraları West Virginia Chess Bulletin adını almıştır.

629. Yazışmalı Satranç. Yeni Kuvvet Derecesi

ICCF aktif oyuncular En üst 30 (2625+)

Place	ICCF Id	Title	Name	Games	Rating
1	940817	GM	Papenin, Nikolai	212	2741
2	370241	GM	Oosterom, Joop J. van	254	2708
3	81128	GM	Schön, Wolfram	96	2699
4	80924	GM	Neumann, Joachim	118	2692
5	130853	GM	Chytilek, Roman	168	2687
6	370930	GM	Langeveld, Ron A. H.	122	2679
7	140915	GM	Dronov, Aleksandr Surenovich	115	2679
8	141647	GM	Zhak, Boris Mikhailovich	262	2670
9	370249	GM	Timmerman, Gert Jan	194	2667
10	360209	GM	Bern, Ivar	184	2667
11	81348	GM	Voss, Maximilian	230	2656
12	360368	GM	Boger, Raymond	324	2653
13	84813	GM	Wunderlich, Dr. Hans-Dieter	180	2653
14	81027	GM	Kribben, Dr. Matthias	167	2651
15	900070	GM	Ljubičić, Ing. Leonardo	357	2650
16	80939	GM	Hertel, Peter	181	2650
17	160789	GM	Lafarga Santorromán, David	169	2647
18	440505		Văluţanu, Marius	155	2645
19	81282	GM	Nickel, Arno	291	2640
20	210773	GM	Hall, Richard V. M.	227	2639

21	81204	GM	Moll, Reinhard	236	2637
22	460342	GM	Kujala, Auvo	52	2635
23	83552	GM	Gerhardt, Frank	192	2631
24	240026	GM	Toth, Bela	109	2631
25	85201	SIM	Starke, Dr. René-Reiner	145	2628
26	370921	GM	Hoeven, David A. van der	125	2628
27	81026	GM	Kreuzer, Dr. Martin	80	2627
28	80716	GM	Nimtz, Dr. Manfred	259	2626
29	70300	GM	Cipolli, Antonio Carlos Rodrigues	196	2626
30	240384	GM	Giuliani, Sante	91	2626
31	10543	GM	Rattinger, Friedrich	175	2625

628. Yazışmalı Satranç. Yeni Kuvvet Derecesi Listesi

ICCF 2011/4 kuvvet derecesi listesi yayınlandı. Türkiye'den oyuncu sayısı 412'ye çıkarken, aktif oyuncu sayısı 193 oldu. Üç IM normunu (biri SIM) dolduran Ankara'dan Halil Özmen IM unvanını kazandı. IM Özmen'i kutluyoruz.

ICCF 2000+ aktif oyuncular

ICCF Id	Title	Name	Games	Rating
490124	GM	Turgut, Tansel	100	2618
490165	SIM	Akdag, Murad	146	2550
490077	SIM	Kösebay, Osman	175	2494
490089	IM	Özmen, Halil	116	2452
490085		Bilgin, Reha	40	2429
490167		Esen, Nejdet	168	2426
490190		Selen, Dinçer	124	2392
490058	GM	Atakisi, Fatih	441	2390
490066	SIM	Satici, Aydin	726	2384
490081		Satici, Aykut Cihan	103	2370
490186		Gurmen, Attila	216	2363
490147		Goze, Tolga	181	2359
490076		Dikmen, Ali	323	2348
490069		Kural, A. Serhat	159	2330
490269		Meric, Tuncay	32	2324
490303		Tugsavul, Ugur	45	2314
490310		Koc, Zeki	71	2312
490324		Vatansever, Senol	41	2293
490086		Pekand, Bülent	67	2290
490255		Onder, Evren	90	2289

490377		Akinal, Ediz	37	2283
490136		Taner, Dr. Harun	77	2272
490094		Gokerman, Ersan	75	2267
490113		Hiçdönmez, Hakan	146	2267
490101		Bas, Deniz	24	2244
490232		Demir, Mustafa	23	2235
490329		Tamkan, Ekrem	30	2232
490369		Temizyurek, Cagri	13	2228
490406		Akkalyoncu, Sinan	16	2226
490187		Karaca, Cihan Gurbuz	21	2224
490156		Caliskan, Ismail	163	2208
490366		Soyek, Ramazan	18	2184
490158		Ozturk, Erhan	34	2181
490266		Ornek, Ozer	67	2173
490182		Ilken, Zafer	75	2166
490184		Uygun, Ali	31	2151
490350		Gündogdu, Kubat	22	2129
490291		Yaramis, Hakan	45	2118
490188		Kayis, Cahit Sadi	105	2117
490221		Araboga, Mesut	85	2113

490225		Ergen, Cenk	53	2106
490421		Unal, Abidin	15	2106
490100		Haznedaroglu, Kivanc	258	2101
490219		Dalar, Ali Riza	104	2092
490297		Yeke, Serkan	45	2092
490282		Degismez, Hakan	28	2090
490166		Sever, Salih	65	2090
490173		Demir, Sercan	73	2089
490252		Secer, Ata	80	2080
490175		Anil, Ali Fazil	73	2076
490380		Bilyap, Enis	13	2072
490097		Atakisi, Umut	139	2067
490259		Ozturk, Emir	19	2067
490189		Duman, Coskun	64	2040
490313		Basargan, Uguray	39	2033
490198		Gulsu, Mehmet	45	2025
490199		Onem, Cem	130	2015
490220		Igdir, Gencay	45	2007
490093		Olcayoz, Alper	26	2006
490145		Kayar, Mehmet Erdem	22	2003

490383		Tezok, Cevdet Sinan	19	2001
490209		Ciklabakkal, Metin	97	2000

627. Bilgisayar Satrancı

Bloglamaya başladığım haziran ayı başından bu yana düzenlediğim sınama turnuvalarında 500 kadar oyun oynanmış. Programlar ve çok yaklaşık kuvvet dereceleri şöyle:

1..IvanHoe.B47e............3449.23
2..Houdini.2.0.Pro.........3428.20
3..Houdini.1.5a............3426.58
4..Fire.1.5.xTreme.p.......3424.22
5..Stockfish.2.1.1.........3417.80
6..Deep.Rybka.4.1.SSE42....3399.54
7..Critter.1.2.SSE4........3393.98
8..Fire.2.2.xTreme.........3378.46
9..IvanHoe.47cA............3371.16
10.Fire.2.1.xTreme.........3368.24
11.Houdini.2.0.............3357.21
12.Deep.Rybka.4.1..........3352.26
13.Leopard.0.7cT...........3343.46
14.IvanHoe.B47cB...........3332.38
15.Komodo.3.0..............3325.42
16.IvanHoe.47c.GHp.........3324.22
17.Deep.Saros.2.3iT........3266.46
18.Fire.2.0.xTreme.........3257.8
19.Komodo.2.01.SSE4........3255.24
20.Critter.1.01.SSE4.......3252.6
21.Komodo.2.03.............3240.46
22.Naum.4.2................3236.46
23.Deep.Shredder.12........3170.46


(DF12) 

626. Dünya Kupası

Round 4. Results

Click on the score to view the game Name G1 G2 R1 R2 r3 r4 B1 B2 SD Tot Round 4 Match 01 Polgar, Judit (HUN) 0 1 1 Dominguez Perez, Leinier (CUB) 1 0 1 Round 4 Match 02 Bu, Xiangzhi (CHN) ½ ½ 1 Ivanchuk, Vassily (UKR) ½ ½ 1 Round 4 Match 03 Zherebukh, Yaroslav (UKR) 0 0 0 Navara, David (CZE) 1 1 2 Round 4 Match 04 Bruzon Batista, Lazaro (CUB) ½ ½ 1 Ponomariov, Ruslan (UKR) ½ ½ 1 Round 4 Match 05 Gashimov, Vugar (AZE) 1 0 1 Nielsen, Peter Heine (DEN) 0 1 1 Round 4 Match 06 Potkin, Vladimir (RUS) 1 0 1 Grischuk, Alexander (RUS) 0 1 1 Round 4 Match 07 Radjabov, Teimour (AZE) 1 ½ 1.5 Jakovenko, Dmitry (RUS) 0 ½ 0.5 Round 4 Match 08 Svidler, Peter (RUS) 1 1 2 Kamsky, Gata (USA) 0 0 0

625. Bilgisayar Satrancı

Yeni çıkan Houdini 2.0 Pro x64 ile 5-7 eylül günlerinde, dünyanın en iyi 64 bit programları arasında, toplam 38 saat kadar süren bir double round robin sınama turnuvası düzenledim. Stockfish, Naum ve Komodo kapsamlı açılış kitaplarını kullandılar. Houdini 2.0 Pro için öğrenme seçeneği açıktı. Diğer ayar ve değerler önceki turnuvalardakiler ile aynıydı.

Robbo oyun sonu tablolarından yararlanan en yeni IvanHoe sürümü turnuvayı kazandı.

624. Dünya Kupası

Günün son iki maçını da dün yenilenler, Polgar ve Nielsen kazandı. Sonraki tura kalanlar yarın eşitlik bozma maçlarında belirlenecek.

623. Dünya Kupası XLVII

Ivanchuk -  Bu ikinci oyunu da yenişmezlik ile sonuçlandı.

622. Dünya Kupası XLVI

Navara, Zherebukh karşısında 2-0 kazanarak sonraki tura kaldı. Grischuk, Potkin karşısında durumu eşitledi: 1-1. Böylece bu maçta kazanan da eşitlik bozma maçında belirlenecek. Üç maç sürüyor.

621. Dünya Kupası XLV

Son sekiz oyuncu arasına ABD şampiyonu Kamsky karşısında 2-0 kazanan Svidler'den sonra, Rusya şampiyonlarından Jakovenko'yu 1,5-0,5 skorla eleyen Radjabov da katıldı. Ponomariov - Bruzon maçı iki yenişmezlik ile 1-1 sonuçlandığından yarınki eşitlik bozma maçları kazananı tayin edecek. Svidler, canlı yayında Navara'nın centilmenliğini ve mükemmel oynama arzusunu övdü. Beş masada oyunlar sürüyor.

620. Günlük yaşam

13. İki gün önceki bir haber başlığı: Palamutun kilogramı 3 liraya kadar düştü. Bu başlığı okur okumaz hemen çevremdekilere de duyurdum. Aman dedim hiç olmazsa sezon başında bir kaç kilogram balık yiyelim. Ancak dün Antalya'da palamutun kilogram fiyatını öğrendiğimde "çüşşşş" dedim, içimden. Balıkçıya: Kolay gelsin. Nasıl işler? Balıkçı: İdare ediyoruz işte. Balıkçıya: Balık fiyatlarının düştüğünü duydum. Aslı var mı? Balıkçı: Bizde iki lira arttı! Balıkçıya: Yapma yahu. Palamut fiyatı düşmüş ya. Balıkçı: Marmarada düşmüş. Bize dün İzmirden beş kilogram palamut geldi. Yarım kilogramını on liradan verdik. 15 eylülde av sezonu başlayacak. Yirmisine doğru fiyatlar bir lira kadar ucuzlar!

619. Oyun bitimi tabloları II

Diyelim altı taşlı bir oyun bitimi konumu ile karşılaştınız ve uzun  uğraşlarınıza rağmen bir çözüme ulaşamadınız. Günler ve gecelerce süren bilgisayar çözümlemeleriniz de size pek yardımcı olamadı. Çözümü çevrimiçi olarak kolaylıkla bulabilirsiniz:

http://www.shredderchess.com/online-chess/online-databases/endgame-database.html

Bu sayfadaki tahtada konumunuzu diziniz veya FEN notasyonu ile konumu kopyalayınız. Konumun kaç hamlede mat veya yenişmezlik olduğu birkaç dakikada karşınızda.

618. Dünya Kupası XLIV

(339) Gashimov,Vugar (2760) - Nielsen,Peter Heine (2681) [C67]
FIDE World Cup 2011 Khanty-Mansiysk RUS (4.1), 06.09.2011

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.Rd1+ Ke8 10.Nc3 Be7 11.Bg5 [Relevant: 11.b3 Bd7 12.Bb2 Rd8 13.h3 h5 14.Kf1 b6 15.a4 a5 16.Ne2 c5 17.Nc3 Bc6 18.Nb5 Rxd1+ 19.Rxd1 Bd8 20.Bc1 Rg8 21.Ke2 h4 22.Bg5 Bxb5+ 23.axb5 Bxg5 24.Nxg5 Nd4+ 25.Kd3 Ke7 26.c3 Nxb3 27.Kc2 a4 28.Re1 c4 29.Re4 a3 30.Rxc4 a2 31.Rxc7+ Ke8 32.Rc8+ Kd7 33.Rxg8 a1Q 34.e6+ Ke7 35.exf7 Qa2+ 36.Kd3 Qd2+ 37.Ke4 Nc5+ 38.Kf5 Qxf2+ 39.Kg6 Qf6+ 40.Kh5 Qh6+ Savchenko,B (2630)-Romanov,E (2624)/Taganrog 2011/CB25_2011/1-0] 11...h6 12.Bxe7 Nxe7 13.Nd4 Bd7N [Predecessor (2): 13...Nf5 14.Nde2 Be6 15.h3 g5 16.Ne4 Ke7 17.Rd2 Rad8 18.Rad1 Rd5 19.Rxd5 cxd5 20.Nf6 c6 21.Rd3 Bc8 22.f4 gxf4 23.Nxf4 Rd8 24.g4 Nh4 25.N6h5 d4 26.b4 b6 27.Ng3 Ng6 28.Nxg6+ fxg6 29.Ne2 Ba6 30.Nxd4 Bxd3 31.Nxc6+ Kd7 32.Nxd8 Bxc2 33.Nf7 Bb1 34.Nxh6 Ke6 35.a3 Kxe5 36.Nf7+ Kd4 37.Kf2 Kc4 38.Ke3 a5 39.bxa5 bxa5 40.Nd6+ Kb3 1/2-1/2 (40) Aroshidze,L (2537)-Foisor,C (2424)/Chalkida 2009/CBM 131 Extra] 14.Rd3 Rd8 15.Rad1 Nd5 16.Ne4 Nf4 17.R3d2 Ke7 18.f3 Bc8 19.Kf2 Rhe8 20.g3 Nh3+ 21.Ke3 Ng5 22.f4 Nxe4 23.Kxe4 g6 24.f5 Rxd4+ 25.Kxd4 Bxf5 26.Kc3 a5 27.a3 Be6 28.Rd4 c5 29.Rf4 h5 30.b4 axb4+ 31.axb4 Ra8 32.bxc5 Ra3+ 33.Kb2 Ra2+ 34.Kb1 Ra5 35.Rb4 Rxc5 36.Rxb7 Bf5 37.Rd2 Be4 38.Ra7 Ke6 39.Re2 Kxe5 40.Ra4 f5 41.Ra6 g5 [41...c6! 42.Kb2 Kf6 43.Ra7 Kg5 44.Rg7 Rc4 45.Kc1 Bd5=] 42.Rg6 g4 43.Rh6 Kd4 44.Rxh5 Bf3 45.Rd2+ Ke3 46.Rd3+ Kf2 47.Kb2 Be4 48.Rc3 Rb5+ 49.Kc1 c6 50.Rh8 Kg2 51.Rc4 Re5 52.Rd4 Bf3 53.Rd2+ Kg1 54.Kb2 Re3 55.Rh7 Be4 56.Rd1+ Kg2 57.Rd2+ Kg1 58.Re7 Kh1 59.Rf2 Kg1 60.Rxf5 Bxc2 61.Rf1+ Kxf1 62.Rxe3 Bd1 63.Kc1 Bf3 64.Re5 Kg1 65.Rh5 Bg2 66.Kd2 Bh3 67.Ke3 Kxh2 68.Kf2 c5 69.Rxc5 Bg2 70.Rc4 Bh3 71.Ra4 Kh1 72.Ra1+ Kh2 73.Rg1 1-0

H2x64: 4 hamlede mat !

617. Dünya Kupası XLIII

Turnuvadan çözümlemeli bir oyun:

(335) Zherebukh,Yaroslav (2590) - Navara,David (2722) [B85]
FIDE World Cup 2011 Khanty-Mansiysk RUS (4.1), 06.09.2011
[Based on comments by David Navara]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 d6 Navara has chosen a clever move order. 7.0-0 Nf6 8.Be3 Be7 9.f4 0-0 10.Qe1 Inaccuracy enabling black to equalise quickly. Black's move order without Qc7 has been important. 10...Nxd4 11.Bxd4 b5 12.a3 Bb7 13.Qg3 g6 Navara already knew this in the last century. [13...Bc6 Transposing to normal lines. But there is no point. 14.Rae1 (14.Kh1 Qd7 15.Rad1 Qb7 16.Bf3 Rac8 17.Rfe1 g6 18.Qf2 Rfd8 19.Rd3 d5 20.e5 Ne4 21.Qe3 b4 22.axb4 Bxb4 23.Rdd1 a5 24.Rg1 a4 25.Nxe4 dxe4 26.Be2 Rd7 27.c3 Ba5 28.c4 Rcd8 29.Bc3 Bxc3 30.Qxc3 e3 31.Rxd7 Rxd7 32.Qxe3 Qxb2 33.Bf3 Bxf3 34.Qxf3 a3 35.Qa8+ Kg7 36.c5 Qc3 37.c6 Rd3 38.Qa6 Rd4 39.Rf1 Qc4 40.Qxc4 Rxc4 41.h3 Rxc6 42.Ra1 Rc3 43.Kg1 h5 44.h4 Kf8 45.Ra2 Rb3 46.Kh2 Ke7 47.Rd2 Rb4 48.Kg3 Ra4 49.Ra2 Kd7 50.Kf3 Kc6 51.Ke3 Kd5 0-1 (51) Filev,G (2395)-Inarkiev,E (2675)/Struga 2008/OM 2.10) 14...Qd7 15.Bd3 a5 16.b4 axb4 17.axb4 e5 18.fxe5 dxe5 19.Qxe5 Bd6 20.Qf5 Bxh2+ 21.Kxh2 Qxd4 22.e5 Bd7 23.Qf3 Ng4+ 24.Kh1 Nxe5 25.Bxh7+ Kxh7 26.Qh5+ Kg8 27.Qxe5 Qh4+ 28.Qh2 Qxh2+ 29.Kxh2 Rfe8 30.Rxe8+ Bxe8 31.Rf5 Rc8 32.Nxb5 Rxc2 33.Nd4 Rc4 34.Rd5 Rxb4 35.Rd8 Kh7 36.Rxe8 Rxd4 37.Kg3 f5 38.Kf3 Kh6 39.Re3 Kh5 40.g3 g5 41.Ra3 g4+ 42.Kg2 Rd6 43.Ra4 Kg5 44.Rf4 Kf6 45.Rf1 Rd2+ 46.Kg1 Re2 47.Rf4 Ke5 1/2-1/2 (47) Svidler,P (2650)-Van Wely,L (2605)/Tilburg NED 1996/OM 2.10] 14.Bf3 a5 15.Nxb5 [Relevant: 15.b4 Rc8 16.Rad1 axb4 17.axb4 Rc4 18.Kh1 Nd7 19.Be2 Rxb4 20.Nxb5 Bxe4 21.Bg7 Bxc2 22.Bxf8 Qxf8 23.Rd4 d5 24.Rxb4 Bxb4 25.Rc1 Be4 26.Rc7 Qd8 27.Qe3 Qh4 28.Qg3 Qf6 29.Qe3 Qa1+ 30.Qc1 Qa2 31.Rc8+ Kg7 32.Qd1 Nf6 33.h3 Bd2 34.Qf1 Bxf4 35.Nc7 Qd2 36.Ne8+ Nxe8 37.Rxe8 Qe3 38.Bf3 Bxf3 39.gxf3 Qd2 40.Qg1 Qe2 0-1 (40) Kamsky,G (2723)-Mamedyarov,S (2742)/Moscow 2008/CBM 126] 15...Nxe4 16.Qe1 f5 Played quickly. [16...d5 17.Bxe4 dxe4 18.a4 Qc8 19.Qf2 Rd8 20.Rad1 Qc6 21.b3 Rd7 22.Be3 Rad8 23.Rxd7 Rxd7 24.Nd4 Qc3 25.Qe1 Qb2 26.Qc1 Qxc1 27.Rxc1 Bc5 28.c3 Bd5 29.Rb1 Rb7 30.c4 Bxc4 31.Rc1 e5 32.fxe5 Bxd4 33.Bxd4 Be6 34.Be3 Kg7 35.Rc5 Rxb3 36.Kf2 Rb2+ 37.Kg3 Rb3 38.Kf2 Rb2+ 39.Kg3 Rb3 40.Kf2 1/2-1/2 (40) Kobalia,M (2625)-Sandipan,C (2623)/2009/OM 2.10; 16...Qd7 17.c4 Nc5 18.Rd1 Rfc8 19.Qe3 Bxf3 20.Rxf3 Nb7 21.f5 Rxc4 22.fxg6 fxg6 23.Rdf1 Rxd4 24.Nxd4 e5 25.Qh6 1-0 (25) Sutovsky,E (2630)-Van Wely,L (2676)/Dagomys RUS 2008/OM 2.10] 17.Nc3 [17.c4 Rf7 18.Kh1 Rc8 19.Rc1 Bf8 20.Qe3 Qh4 21.Bxe4 fxe4 22.Qd2 a4 23.Be3 Rd8 24.f5 exf5 25.Bg5 Qg4 26.h3 e3 27.Bxe3 Qxh3+ 28.Kg1 Bxg2 29.Rfe1 Be4 30.Qh2 Qg4+ 31.Kf2 f4 32.Bb6 Qf3+ 33.Kg1 Re8 34.Nd4 Qg4+ 35.Kf2 Be7 36.Rcd1 Bh4+ 37.Kf1 Bg3 38.Qh6 f3 39.Re3 Bf4 0-1 Baron Rodriguez,J (2424)-Jansa,V (2494)/Sabadell ESP 2007/The Week in Chess 668; 17.Rd1 Qc8 18.Qe2 a4 19.c4 Rf7 20.Rc1 Bf8 21.Rfd1 Qe8 22.Bc3 Nxc3 23.Rxc3 Bxf3 24.Rxf3 d5 25.cxd5 exd5 26.Qxe8 Rxe8 27.Nc3 d4 28.Nxa4 Ra7 29.Nb6 Re2 30.Nc4 1/2-1/2 (30) Svidler,P (2650)-Akopian,V (2630)/Groningen NED 1996/OM 2.10] 17...d5 Still equal. 18.Qe3 Bf6N [18...Rc8; 18...Ba6 19.Rfd1 Qc7 maybe even better than the game.; Predecessor: 18...Rc8 19.Rfd1 Qc7 20.Be2 Bf6 21.g3 Bxd4 22.Rxd4 e5 23.fxe5 Nxc3 24.bxc3 Rfe8 25.Rb1 Rxe5 26.Qd2 Qe7 27.Bf3 Rd8 28.c4 Qxa3 29.Kg2 Ba6 30.Rb6 Rd6 31.Rxd6 Qxd6 32.cxd5 Re8 33.Qxa5 Rc8 34.Qd2 Qe5 35.c3 Rb8 36.d6 Qb5 37.c4 Qd7 38.c5 Qb5 39.Bd5+ Kg7 40.Bc4 Qc6+ 41.Kh3 Bxc4 42.Rxc4 h6 43.Qd4+ Kh7 44.Rc1 Qf3 45.Re1 Re8 46.Qd1 Qc6 47.Rxe8 Qxe8 48.d7 Mokry,K (2310)-Morovic Fernandez,I (2200)/Graz 1978/MCD/1-0; Houdini 2.0 x64: 18...Ba6 19.Rf2 Rc8 20.Nxe4 fxe4 21.Bg4 Rc6 22.c3 Bf6 23.Bc5 Rf7 24.Rd1 Be7 25.Bxe7 Qxe7 26.Be2 Bxe2 27.Rxe2 Qc7 28.g3 a4 29.Kg2 Rc4 30.Rc2 Rf8 31.Rcd2 Kg7 32.Rd4 Rb8 33.Qe2 Rxd4 34.Rxd4 Qa7 35.Rb4 -0.25/25 ] 19.Be2?! Surprising move. [19.Ne2 Ba6 Stopping the knight getting to d4.] 19...Ba6 20.Bd3? I can only presume white misses that 22. Qxd3 fails to Qb6+ in a couple of moves. [20.Rae1 Bxe2 21.Rxe2 Bxd4 22.Qxd4 Rc8 keeps damage to the minimum.; 20.Bxa6 Rxa6] 20...Bxd4 [20...Bxd3 was Navara's first thought but he plays a much better move.] 21.Qxd4 Bxd3 22.cxd3 [22.Qxd3 Qb6+ wins.] 22...Nd2 23.Rae1 This seems to be the best practical chance but white is totally busted. [23.Qe3 Nxf1 24.Qxe6+ is also winning with black.] 23...Nxf1 24.Rxe6 Nd2 [24...Qd7 is a cheapo Navara but it isn't the best move available for him. 25.Rb6 (25.Re2 Nxh2 26.Kxh2) 25...Ne3 26.Qxe3 d4] 25.Nxd5 Nb3 26.Qe5 [26.Qc4 Rc8 with no dangerous checks. 27.Qxb3 Rc1+ 28.Re1 Rxe1+ 29.Kf2 Re6] 26...Ra7 27.Kf1 Navara now converts quite easily. [27.Nf6+ was missed by Navara and even after the game he was worried by this. 27...Kf7 (27...Rxf6 Navara's initial intention. 28.Re8+ Qxe8 29.Qxe8+ and white is not worse.) 28.Nxh7 Qd4+ 29.Qxd4 Nxd4 30.Rf6+ Kg7 31.Rxf8 Kxh7 I guess is also losing but looks like the best chance to continue.] 27...Raf7 [27...Rg7 was Navara's initial thought.] 28.h4 a4 29.h5 gxh5 30.g3 Qb8 31.Rd6 Qb7 32.Rh6 Rd8 33.Nf6+ Rxf6 34.Rxf6 Nd2+ 35.Kf2 Qf3+ 0-1

616. Dünya Kupası XLII

Dördüncü tur ilk gün özeti.

Polgar, Grischuk and Kamsky defeated in Round 4 Day 1 of the World Cup

Mark Crowther - Tuesday 6th September 2011

It was a day when it was hard to find a single outstanding headline. 6 of the 8 games were decisive, in 2 of them black won and some well known names lost. Vladimir Potkin's reputation grows by the day as he punished risky opening play and time trouble by his friend Alexander Grischuk. Leinier Dominguez took advantage of some over-ambitious play from Judit Polgar when she really should have steered for a draw early after her opening went wrong. The heavyweight clash between Russian and US Champions saw Peter Svidler grind down Gata Kamsky. David Navara won with black against 18 year old Yaroslav Zherebukh after catching him out in the opening. Vugar Gashimov and Teimour Radjabov also won (both making quiet and confident progress through the event).

Judit Polgar lost to Leinier Dominguez Perez

Leinier Dominguez Perez commented after his win against Judit Polgar that "I think it was a good game, it was important I got an easy position to play with black from the opening and I think the pressure was on white from the opening. That was my strategy all the time." Polgar should probably have accepted that she was not better out of the opening and played 17.Bxd5 after which a draw would have almost certainly followed. Instead after 17.exd5 as Dominguez points out the onus was definitely on her to show something. By move 27 she was busted (after 27...e4 this would have been even clearer) and taking his time Dominguez found his way to a win whilst Polgar was left with no counterplay whatsoever.

Leiner Dominguez Perez

Judit Polgar

Position after 30...Qxf6. White's position is just depressing, she just has no counterplay, or prospect of it at all. 31. Rd3 Rc7 32. Qc3 Rca7 33. Rd2 Bd4 34. Qd3 Ra1 35. g3 Rxf1+ 36. Kxf1 Bc5 37. Kg2 e4 38. Qe2 Re8 39. f3 exf3+ 40. Qxf3 Re3 41. Qf1 Qe5 42. Qf4 Qe7 43. Ra2 Re1 44. b4 Be3 45. Qf3 Rg1+ 46. Kh3 Qg5 0-1

Vladimir Potkin beat Alexander Grischuk

Vladimir Potkin finally made Alexander Grischuk pay for his normally benign (for him) addiction to time trouble. Grischuk had sharpened things straight out of the opening with 11...Nh5 which looks dubious, and this led him to a long term struggle for equality which he came quite close to achieving eventually. Perhaps in retrospect his 36...Re8 wasn't the best but by now he was extremely short of time, 38...Re4+ looks like an error, 39...b5 too and finally 40...Re5 left which with nothing to do but win with 41.d6. The more I see of Potkin the more I like his play.

Potkin,Vladimir (2682) - Grischuk,Alexander (2746) [E73]
FIDE World Cup 2011 Khanty-Mansiysk RUS (4.1), 06.09.2011

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Bg5 Na6 7.f4 Qe8 8.Nf3 e5 9.fxe5 dxe5 10.d5 Nc5 [10...h6 11.Bd2 Bd7 12.Qc2 Nb4 13.Qc1 a5 14.a3 Na6 15.Bxh6 Nc5 16.Bxg7 Kxg7 17.Qe3 Nb3 18.Rd1 Ng4 19.Qd3 f5 20.h3 Rh8 21.0-0 Nf6 22.exf5 Bxf5 23.Qe3 Bxh3 24.Ng5 Bd7 25.Rxf6 Kxf6 26.Nce4+ Kg7 27.Qxb3 Rh5 28.Qc3 Bf5 29.Ne6+ Kf7 30.Qxe5 Qe7 31.Qg7+ 1-0 Hedman,E (2320)-Horvath,G (2325)/Budapest 1995] 11.Nd2 Nh5?! This move seems to get black into a lot of trouble. 12.Bxh5 gxh5 13.Qxh5 Nd3+ 14.Ke2 Nf4+ 15.Bxf4 exf4 16.Rhf1 Be5 17.g3 There is an alternative discussed in the live broadcast. [17.Kd3 f5 18.Qxe8 Rxe8 19.Rae1 fxe4+ 20.Ndxe4 Bf5 21.g4 Bg6 22.h4 h6 23.Kd2 c6 24.Nc5 cxd5 25.Nxd5] 17...fxg3 18.Nf3 Bg7 19.e5 Bxe5 20.Nxe5 f6 21.Qxe8 Rxe8 22.hxg3 Rxe5+ 23.Kd2 Kf7 24.Rf4 Rf5 [24...Kg6 25.Nb5 c6 26.Nc7 Rb8 27.Raf1 Kg5 28.Rxf6 Bf5 29.Rd6 Kg4] 25.Raf1 Rxf4 26.Rxf4 Bd7 27.Ne4 f5 28.Nc5 Bc8 29.b4 b6 30.Nd3 Kf6 31.Rh4 Kg7 32.Kc3 Bd7 33.Ne5 Be8 34.Kd4 h5 35.Nd3 Bf7 36.Nf4

Alexander Grischuk

Vladimir Potkin

Position after 36.Nf4

36...Re8?! Perhaps not quite the most accurate. [36...a5 37.b5  (37.bxa5 Rxa5) 37...Kf6] 37.Nxh5+ Bxh5 38.Rxh5 Re4+? [38...Kg6 39.Rh4 Re2 40.a3 Rd2+ 41.Kc3 Ra2 42.Kb3 Rg2 43.Rh3 and black looks fine.] 39.Kd3 b5?! [39...Rg4 40.Rxf5 Rxg3+ 41.Ke4 Ra3 (41...Rc3 42.Kd4 Ra3 43.Re5 Kf7  (43...Kf8 44.Re6 Rg3 45.c5 Rg4+ 46.Kc3 Rg7 47.Kc4) 44.Re2 Ra4 45.Kc3 Ra3+ 46.Kb2 Rg3 47.Re6) 42.c5 bxc5 43.bxc5 Rxa2 44.d6; 39...Kf6 is perhaps the last chance. 40.Rh6+ Ke7 41.Rh4 Re1 42.Rh7+ Kd6 43.Rh6+ Ke7 44.Rc6 Kd8 45.Rf6 Rg1 46.Rxf5 Rxg3+ 47.Kc2] 40.c5 Re5 Final move before time control loses easily. But I think the position is already gone anyhow. [40...Kg6 41.Rh8  (41.Rh8 Kf6 42.Rh7 Rg4 43.Rxc7 Rxg3+ 44.Kd2) 41...Kf6; 40...Kf6 41.Rh7 Rg4 42.Rxc7 Rxg3+ 43.Ke2 wins for white.] 41.d6 cxd6 42.c6 Re4 43.Rxf5 Rxb4 44.Rf2 1-0

Yaroslav Zherebukh lost to David Navara

David Navara came as close as possible to get to an ideal scenario following a day of tie-breaks. He won very quickly with black against Yaroslav Zherebukh to take almost complete control of the match. Navara's move order in the Najdorf Sicilian where he didn't commit his queen to c7 right away seemed to have fooled his opponent, Navara after the game said that he believed that 10.Qe1 was an inaccuracy allowing him to equalise. This perhaps explains white's play shortly afterwards, maybe Zherebukh was still seeking an advantage, when he missed a simple tactic losing the exchange. Zherebukh did find a way by sacrificing a whole rook to put pressure on Navara, giving him the best chance to make a mistake, and indeed Narava admitted he did miss a couple of things, but in the end this initiative ran out and Navara was about to give mate when his opponent resigned. You can hear Navara explain his game on the official site's English Video coverage starting at: 17:29.

Zherebukh,Yaroslav (2590) - Navara,David (2722) [B85]
FIDE World Cup 2011 Khanty-Mansiysk RUS (4.1), 06.09.2011
[Based on comments by David Navara]

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6 6.Be2 d6 Navara has chosen a clever move order. 7.0-0 Nf6 8.Be3 Be7 9.f4 0-0 10.Qe1 Inaccuracy enabling black to equalise quickly. Black's move order without Qc7 has been important. 10...Nxd4 11.Bxd4 b5 12.a3 Bb7 13.Qg3 g6 Navara already knew this in the last century. [13...Bc6 Transposing to normal lines. But there is no point.] 14.Bf3 a5 15.Nxb5 Nxe4 16.Qe1 f5 Played quickly. 17.Nc3 [17.c4 Rf7 18.Kh1 Rc8 19.Rc1 Bf8 20.Qe3 Qh4 21.Bxe4 fxe4 22.Qd2 a4 23.Be3 Rd8 24.f5 exf5 25.Bg5 Qg4 26.h3 e3 27.Bxe3 Qxh3+ 28.Kg1 Bxg2 29.Rfe1 Be4 30.Qh2 Qg4+ 31.Kf2 f4 32.Bb6 Qf3+ 33.Kg1 Re8 34.Nd4 Qg4+ 35.Kf2 Be7 36.Rcd1 Bh4+ 37.Kf1 Bg3 38.Qh6 f3 39.Re3 Bf4 0-1 Baron Rodriguez,J (2424)-Jansa,V (2494)/Sabadell ESP 2007/The Week in Chess 668] 17...d5 Still equal. 18.Qe3 Bf6 [18...Rc8; 18...Ba6 19.Rfd1 Qc7 maybe even better than the game.] 19.Be2?! Surprising move.  [19.Ne2 Ba6 Stopping the knight getting to d4.] 19...Ba6 

David Navara

Yaroslav Zherebukh

Position after 19...Ba6!

20.Bd3? I can only presume white misses that 22. Qxd3 fails to Qb6+ in a couple of moves. [20.Rae1 Bxe2 21.Rxe2 Bxd4 22.Qxd4 Rc8 keeps damage to the minimum.; 20.Bxa6 Rxa6] 20...Bxd4 [20...Bxd3 was Navara's first thought but he plays a much better move.] 21.Qxd4 Bxd3 22.cxd3 [22.Qxd3 Qb6+ wins.] 22...Nd2 23.Rae1 This seems to be the best practical chance but white is totally busted. [23.Qe3 Nxf1 24.Qxe6+ is also winning with black.] 23...Nxf1 24.Rxe6 Nd2 [24...Qd7 is a cheapo idea of Navara's but it isn't the best move available for him. 25.Rb6  (25.Re2 Nxh2 26.Kxh2) 25...Ne3 26.Qxe3 d4] 25.Nxd5 Nb3 26.Qe5 [26.Qc4 Rc8 with no dangerous checks. 27.Qxb3 Rc1+ 28.Re1 Rxe1+ 29.Kf2 Re6] 26...Ra7 27.Kf1 Navara now converts quite easily. [27.Nf6+ was missed by Navara and even after the game he was worried by this. 27...Kf7  (27...Rxf6 Navara's initial intention. 28.Re8+ Qxe8 29.Qxe8+ and white is not worse.) 28.Nxh7 Qd4+ 29.Qxd4 Nxd4 30.Rf6+ Kg7 31.Rxf8 Kxh7 I guess is also losing but looks like the best chance to continue.] 27...Raf7 [27...Rg7 was Navara's initial thought.] 28.h4 a4 29.h5 gxh5 30.g3 Qb8 31.Rd6 Qb7 32.Rh6 Rd8 33.Nf6+ Rxf6 34.Rxf6 Nd2+ 35.Kf2 Qf3+ 0-1

Peter Svidler beats Gata Kamsky

Peter Svidler against Gata Kamsky was probably the heavyweight clash of the round featuring as it did a match between the Russian and US Champion. Svidler chose a line of the Ruy Lopez with a small amount of, but long lasting, positional pressure. Kamsky started to get short of time and he must have been worn down with the defensive task too. Eventually this told and Kamsky gave ground allowing Svidler a decisive advantage.

Gata Kamsky

Peter Svidler

Position after 46.Kf3

46....Ba2? 46...Rf6+ keeping white's king out is better. 47.Ke2 Ra6 48.Kd1 Kf6 47.Ke4 Rxa3 48.Kd4 Rb3? loses quickly but I don't think there is any saving this position anyhow. 48...Ra8 49.Re7 h4 50.Rb7 Bb3 51.gxh4 Ra2 52.Kc3 Re2 53.Re7 49.d6 f6 50.Re7+ Kf8 51.Nd5 Bb1 52.Kc5 Rd3 53.Ra7 1-0

Teimour Radjabov beat Dmitry Jakovenko

Teimour Radjabov played a slow manoeuvring game in a Reti against Dmitry Jakovenko. Jakovenko turned down a straight-forward and good continuation of 36...Nd4 in favour of 36...Nb4 after which his position went downhill fast. It isn't clear to me what he missed.

Dmitry Jakovenko

Teimour Radjabov

Position after 36.e4

36... Nb4 36... Nd4 37. exf5 Qxf4+ 38. Rxf4 Re5 39. f6 Rf7 37. Qxd6 Rxd6 38. Bxf5 Nxd5 39. cxd5 Bxf5 40. Rxf5 c4 41. Rf4 c3 42. Rf7 Rc8 43. Rgg7 Rdd8 44. Rh7+ Kg8 45. Rfg7+ Kf8 46. Rxa7 Kg8 47. Rag7+ Kf8 48. Rd7 1-0

Vugar Gashimov beats Peter Heine Nielsen

Vugar Gashimov beat well known theoretician Peter Heine Nielsen on the white side of a Berlin Defence. Nielsen didn't necessarily have to sacrifice the exchange on move 24 but it looked good enough for a draw for a while. However on move 41 straight after first time control Nielsen blundered with 41...g5? rather than 41...c6 and Gashimov took a kingside pawn and made no mistake in converting.

Bu Xiangzhi draw Vassily Ivanchuk

Bu Xiangzhi got nothing against Vassily Ivanchuk in an English and the game trailed out to a draw in 28 moves.

Lazaro Bruzon draw Ruslan Ponomariov

Lazaro Bruzon seemed to get a little something against Ruslan Ponomariov but his 28.Ng5 which he retracted the following move seems to have been a mistep that allowed Ponomariov to equalise and they almost immediately started to repeat the position.

FIDE World Cup 2011 Khanty-Mansiysk RUS Sun 28th Aug 2011 - Tue 20th Sep 2011 Round 4 Results

Bd	Score	Name	FED	Res	Name	FED
1	0-1	Polgar, Judit	HUN	0-1	Dominguez Perez, Leinier	CUB
2	0.5-0.5	Bu, Xiangzhi	CHN	1/2	Ivanchuk, Vassily	UKR
3	0-1	Zherebukh, Yaroslav	UKR	0-1	Navara, David	CZE
4	0.5-0.5	Bruzon Batista, Lazaro	CUB	1/2	Ponomariov, Ruslan	UKR
5	1-0	Gashimov, Vugar	AZE	1-0	Nielsen, Peter Heine	DEN
6	1-0	Potkin, Vladimir	RUS	1-0	Grischuk, Alexander	RUS
7	1-0	Radjabov, Teimour	AZE	1-0	Jakovenko, Dmitry	RUS
8	1-0	Svidler, Peter	RUS	1-0	Kamsky, Gata	USA