Thursday, October 4, 2018

BATUMI CHESS OLYMPIAD 2018 ROUND 9 – PAEHTZ vs DOLZHIKOVA


This game is from round 9 of the 2018 Batumi Chess Olympiad. It features Elizabeth Paehtz with White against Olga Dolzhikova with Black.

Today’s game features a French Defence.

Paehtz,Elisabeth (2513) - Dolzhikova,Olga (2184)
43rd Olympiad Batumi 2018 Women Batumi (9.1), 03.10.2018

1.d4 e6 2.e4 d5 3.Nc3 dxe4 4.Nxe4 Bd7 5.Nf3 Bc6 6.Bd3 Nd7 7.c3 Ngf6 8.Ng3 Bxf3 C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4 
9.Qxf3 c6 10.Bf4 Be7 11.0–0 0–0 12.Rad1 Re8 13.Rfe1 

XABCDEFGHY
8r+-wqr+k+(
7zpp+nvlpzpp'
6-+p+psn-+&
5+-+-+-+-%
4-+-zP-vL-+$
3+-zPL+QsN-#
2PzP-+-zPPzP"
1+-+RtR-mK-!
xabcdefghy

13...Nf8 [13...Qb6 14.Bc1 Rad8 15.Bc2 h6 16.h3 Qa5 17.a3 Bd6 18.Nf1 Qh5 19.Qxh5 Nxh5 1/2–1/2 (49) Balogh,C (2632)-Rustemov,A (2538) Germany 2013] 
14.Bc1 [14.Qe2 is interesting. 14...Ng6 15.Bc1 Nd5 16.Bb1 Ndf4 17.Qf3] 
14...Qd5N [14...Ng6 15.Re3 Qd5 16.Qe2 Nh4 17.Qf1 Rad8 18.Re5 Qd7 19.Bc2 Ng6 1–0 (49) Arias,L (2293)-Fonseca,J (2221) Deportes 2008] 
15.Qxd5 cxd5 16.Nf1 g6 17.Ne3 N8d7 18.b3 Nb6 19.Bb2 Rac8 20.Rb1 Rc7 21.Ba1 Ne4 22.Bxe4 [22.c4²] 
22...dxe4= 23.Nc2 f5 24.f3 exf3 

XABCDEFGHY
8-+-+r+k+(
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6-sn-+p+p+&
5+-+-+p+-%
4-+-zP-+-+$
3+PzP-+p+-#
2P+N+-+PzP"
1vLR+-tR-mK-!
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25.Rxe6 [White should play 25.c4³ ] 
25...Kf7!µ 26.Re3 fxg2 27.Rf3 [27.c4µ] 
27...Bh4 [27...Nd5–+ has better winning chances. White must now prevent ...Bh4. 28.Re1 Bg5 29.Rxe8 Kxe8] 
28.Ne3 Bg5 29.Nxg2 Re2 30.Rf2 Be3 [30...Re4³] 
31.Nxe3= Rxe3 32.c4 Rce7 33.Kf1 Nd7 34.d5 Rd3ƒ White is under pressure. 
35.Re1 Nc5 36.Rxe7+ Kxe7³ Endgame KRB-KRN 
37.Ke2 

XABCDEFGHY
8-+-+-+-+(
7zpp+-mk-+p'
6-+-+-+p+&
5+-snP+p+-%
4-+P+-+-+$
3+P+r+-+-#
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37...Rh3! 38.Be5? [38.Kf1µ] 
38...Nd3–+ 39.Bg3 Nxf2 40.Kxf2 KR-KB 
40...g5 41.Kg2 Rh6 42.Bb8? [42.Be1 g4 43.Bf2] 
42...Ra6 43.a4 Rb6 44.Bxa7 Rxb3 45.a5 Kd6 46.Bb8+ Kc5 47.d6 Rd3 48.Bc7 Kxc4 49.Kf2 Kc5 50.Bd8 h6 51.h4 g4 52.Be7 Rxd6 53.Kg3 Kd5 54.Bxd6 Kxd6 KP-KP 
55.h5 

XABCDEFGHY
8-+-+-+-+(
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6-+-mk-+-zp&
5zP-+-+p+P%
4-+-+-+p+$
3+-+-+-mK-#
2-+-+-+-+"
1+-+-+-+-!
xabcdefghy

55...Kc5 [¹55...Ke5 56.Kh4 f4 57.Kxg4 Ke4 58.Kh3 f3 59.Kg3 Ke3 60.Kg4 f2 61.Kf5 f1Q+ 62.Kg6 Qa6+ 63.Kh7 Qxa5 64.Kg7 Qf5 65.Kxh6 Kf4 66.Kg7 Kg5 67.Kh8 Kf6 68.h6 Kg6 69.h7 Qf8#] 
56.Kf4 Kb5 57.Kxf5 K3P-KPP 
57...g3 58.Kg6 g2 59.Kxh6 

XABCDEFGHY
8-+-+-+-+(
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6-+-+-+-mK&
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4-+-+-+-+$
3+-+-+-+-#
2-+-+-+p+"
1+-+-+-+-!
xabcdefghy


59...g1Q [59...Kxa5–+ 60.Kg7 g1Q+ 61.Kf7 Qg5 62.Ke6 Qxh5 63.Kf6 Kb6 64.Ke6 Kc7 65.Kf6 Kd6 66.Kg7 Ke7 67.Kg8 Kf6 68.Kf8 Qh8#] 
60.Kh7 Kxa5 61.h6 Black mates. 
61...Qg5 62.Kh8 Qxh6+ 63.Kg8 Qg6+ 64.Kf8 Qh7 65.Ke8 Kb6  0–1

Wednesday, October 3, 2018

BATUMI CHESS OLYMPIAD 2018 ROUND 9 – NISIPEANU vs VACHIER LAGRAVE


Going for the win with Black, MVL naturally chose the Najdorf. Unfortunately he was not prepared for the opening novelty on move 12.

This game is from round 9 of the 2018 Batumi Chess Olympiad. It features Dieter Nisipeanu with White against Maxime Vachier Lagrave with Black.

Today’s game features a Sicilian Najdorf.

Nisipeanu,Liviu-Dieter (2661) - Vachier Lagrave,Maxime (2780)
43rd Olympiad Batumi 2018 Open Batumi (9.1), 03.10.2018

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 Ng4 7.Bg5 h6 8.Bc1 B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5 
8...Nf6 9.Bc4 e6 10.Bb3 Be7 11.Be3 Nc6 

XABCDEFGHY
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12.Nxc6N [12.f4 0–0 13.Qf3 Nxd4 14.Bxd4 b5 15.Bxf6 Bxf6 ½–½ (23) Svidler,P (2735)-Ponomariov,R (2700) Wijk aan Zee 2005] 
12...bxc6 13.Qf3 Qc7 14.Qg3 Bb7 [14...Kf8=] 
15.0–0–0 [Lieber 15.Qxg7± Rg8 16.Qxh6] 15...g5 [Black should try 15...Kf8² ] 
16.h4 gxh4 17.Rxh4 0–0–0 18.Rxh6 Rxh6 19.Bxh6 c5 20.e5 dxe5 21.Rxd8+ Bxd8 22.Bc4 Nd5 23.Bd2 Kb8 24.Qg8 Ka7 25.Na4 Qe7 26.b3 Nb6 27.Nxb6 Bxb6 28.Qg7 e4 29.g4 Bd5 30.g5 Qb7 31.Be3 Bxc4 32.bxc4 

XABCDEFGHY
8-+-+-+-+(
7mkq+-+pwQ-'
6pvl-+p+-+&
5+-zp-+-zP-%
4-+P+p+-+$
3+-+-vL-+-#
2P+P+-zP-+"
1+-mK-+-+-!
xabcdefghy

32...a5 [32...Qc7± 33.Kd2 Ba5+ 34.Ke2 Kb7] 
33.a4 Qc7 34.Qh7 Qb7 35.Kd1 Qd7+ 36.Ke1 Qxa4? [36...Qc7 37.Qxe4 Qb7] 
37.Qxf7+ Ka6 38.Qxe6 [¹38.g6] 
38...Qxc2 39.Qc8+ Ka7 40.Qd7+ Ka6 41.Qd5 

XABCDEFGHY
8-+-+-+-+(
7+-+-+-+-'
6kvl-+-+-+&
5zp-zpQ+-zP-%
4-+P+p+-+$
3+-+-vL-+-#
2-+q+-zP-+"
1+-+-mK-+-!
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41...Ka7? [41...Qb1+ 42.Ke2 Qb2+ 43.Bd2 Qh8 44.Qxe4 a4] 
42.g6 a4 43.Kf1 a3 44.g7 a2 

XABCDEFGHY
8-+-+-+-+(
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6-vl-+-+-+&
5+-zpQ+-+-%
4-+P+p+-+$
3+-+-vL-+-#
2p+q+-zP-+"
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45.g8Q [¹45.Kg2 a1Q 46.Qd7+ Ka6 47.g8Q Qg1+ 48.Kxg1 Qb1+ 49.Kg2 Qh1+ 50.Kxh1 Bd8 51.Qc6+ Ka7 52.Bxc5+ Kb8 53.Qxd8#] 
45...Qd3+ 46.Kg2 Qxd5 47.Qxd5 a1Q 

XABCDEFGHY
8-+-+-+-+(
7mk-+-+-+-'
6-vl-+-+-+&
5+-zpQ+-+-%
4-+P+p+-+$
3+-+-vL-+-#
2-+-+-zPK+"
1wq-+-+-+-!
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48.Qd7+ [Don't do 48.Qxe4 Qg7+ 49.Kf3 Qf6+ 50.Ke2 Qb2+ 51.Bd2 Qg7] 
48...Ka6 49.Bxc5 Bxc5 50.Qb5+ Ka7 51.Qxc5+ Kb7 52.Qd5+ Kb6 53.Qxe4 Qg7+ 54.Kf3 Qf6+ 55.Qf4+- Qc6+ Ke4 
56.Ke3+- 1–0

BATUMI CHESS OLYMPIAD 2018 ROUND 9 – PIORUN vs NAKAMURA


Nakamura’s Olympiad woes continued in round 9.

This game is from round 9 of the 2018 Batumi Chess Olympiad. It features Kacper Piorun with White against Hikaru Nakamura with Black.

Today’s game features a Scandinavian Defence.

Piorun,Kacper (2612) - Nakamura,Hikaru (2763)
43rd Olympiad Batumi 2018 Open Batumi (9.3), 03.10.2018

1.e4 d5 2.exd5 Qxd5 3.Nc3 Qd8 4.d4 Nf6 5.Nf3 g6 B01: Scandinavian Defence [5...Bf5 6.Ne5 c6 7.Bc4 e6 8.g4 Bg6 9.h4 Bb4 10.f3 Nd5 11.Bd2 Bxc3 12.bxc3 b5 13.Bxd5 Qxd5 14.h5 f6 15.hxg6 fxe5 16.Rxh7 0–1 (40) Ragger,M (2659)-Laznicka,V (2654) Novy Bor 2017] 
6.Be2 Bg7 7.0–0 0–0 8.Bf4 Nc6 9.Qd2 b6 10.Rad1 Bb7 

XABCDEFGHY
8r+-wq-trk+(
7zplzp-zppvlp'
6-zpn+-snp+&
5+-+-+-+-%
4-+-zP-vL-+$
3+-sN-+N+-#
2PzPPwQLzPPzP"
1+-+R+RmK-!
xabcdefghy

11.Rfe1N [11.Nb5 Nd5 12.c4 Nxf4 13.Qxf4 0–1 (36) Miranda,R (2238)-Slipak,S (2458) Caba 2018] 
11...e6 12.Bh6 Ne7 13.Bxg7 Kxg7 14.Ne5 Rc8 15.Qf4 a6 16.Rd3 b5 17.a3 Qd6 18.b4 Rcd8 19.Red1 Nfd5 20.Nxd5 Nxd5 21.Qh4 f6 

XABCDEFGHY
8-+-tr-tr-+(
7+lzp-+-mkp'
6p+-wqpzpp+&
5+p+nsN-+-%
4-zP-zP-+-wQ$
3zP-+R+-+-#
2-+P+LzPPzP"
1+-+R+-mK-!
xabcdefghy

22.c4! [But not 22.Ng4? Nf4–+] 
22...g5 23.Rg3 Ne7 [Black should play 23...bxc4² 24.Nxc4 Qd7] 
24.Qh5? [24.c5± Ng6 25.Qh5 (25.cxd6 gxh4 26.dxc7 hxg3³)
24...Be4! 25.Re3 Bf5 26.c5 [Much weaker is 26.cxb5 axb5 27.Ng4 Bg6µ] 
26...Qd5 27.Bf3 Qa2 28.Nc6! Nxc6 29.Bxc6 Qc4! 30.Be4 Bxe4 31.Rxe4 e5 32.h4 h6! 33.Qf3 Qd5 34.h5 

XABCDEFGHY
8-+-tr-tr-+(
7+-zp-+-mk-'
6p+-+-zp-zp&
5+pzPqzp-zpP%
4-zP-zPR+-+$
3zP-+-+Q+-#
2-+-+-zPP+"
1+-+R+-mK-!
xabcdefghy

34...exd4 [34...Rd7²] 
35.Rdxd4 Qf7 36.g4 Rxd4 37.Rxd4 Qe6 38.Qd3 f5 39.Rd7+ Rf7 40.Qd4+ Kh7 41.Rd8 Rg7 42.Rf8 [¹42.Kg2] 
42...Qc4 43.Qxc4 bxc4 44.Rxf5 

XABCDEFGHY
8-+-+-+-+(
7+-zp-+-trk'
6p+-+-+-zp&
5+-zP-+RzpP%
4-zPp+-+P+$
3zP-+-+-+-#
2-+-+-zP-+"
1+-+-+-mK-!
xabcdefghy


44...c6 [44...Rd7± 45.c6 Rd1+ 46.Kh2 Kg7] 
45.Re5 Rd7 46.Re4 Rd1+ 47.Kg2 Rc1 48.Kf3 Kg7 49.Ke3 Kf6 50.Kd4 c3 51.Re8 c2 52.Kc3 a5 53.Rc8 axb4+ 54.axb4 Ke5 55.Rxc6 Rb1 56.Kxc2 Rxb4 57.f3 Kd4 58.Rxh6 Rc4+ 59.Kd2 Rxc5 60.Re6+- 1–0

BATUMI CHESS OLYMPIAD 2018 ROUND 8 – LEI vs COSMA


This game is from round 8 of the 2018 Batumi Chess Olympiad. It features Tingjie Lei with White against Elena-Luminita Cosma with Black.

Today’s game features a French Defence.

Lei,Tingjie (2468) - Cosma,Elena-Luminita (2328)
43rd Olympiad Batumi 2018 Women Batumi (8.3), 02.10.2018

1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 Bxg5 7.hxg5 Qxg5 8.Nh3 Qe7 9.Qg4 g6 10.Ng5 C14: French: Classical System: 4 Bg5 Be7 main line 
10...h5 11.Qf4 Nc6 12.0–0–0 White is slightly better. 
12...Nf8 [Black should play 12...a6!² ] 
13.g4!± Nh7 14.Nxh7 Rxh7 

XABCDEFGHY
8r+l+k+-+(
7zppzp-wqp+r'
6-+n+p+p+&
5+-+pzP-+p%
4-+-zP-wQP+$
3+-sN-+-+-#
2PzPP+-zP-+"
1+-mKR+L+R!
xabcdefghy

15.Bg2! Rh8N [15...Bd7 16.Bxd5 0–0–0 17.Bf3 Be8 1–0 (29) Sychev,K (2362)-Obolenskikh,D (2510) Moscow 2012] 
16.Bxd5! Strongly threatening gxh5. 
16...Bd7 [16...exd5 17.Nxd5] 
17.Bf3 Threatens to win with d5. 
17...0–0–0 18.gxh5 gxh5 19.Rxh5 Rxh5 20.Bxh5 Rh8 21.Bg4ƒ Keeping Black busy. 
21...Qh4 22.d5 [Better is 22.Ne4 ] 
22...Nb8 [22...Ne7±] 
23.dxe6 [23.Rg1+- and White stays clearly on top.] 
23...fxe6? [23...Bxe6± 24.Bxe6+ fxe6] 
24.Ne4+- Qh6 25.Qxh6 Rxh6 26.Nf6 c5 27.Rxd7 

XABCDEFGHY
8-snk+-+-+(
7zpp+R+-+-'
6-+-+psN-tr&
5+-zp-zP-+-%
4-+-+-+L+$
3+-+-+-+-#
2PzPP+-zP-+"
1+-mK-+-+-!
xabcdefghy


27...Nxd7? [27...Rxf6 28.Re7 (28.exf6 Kxd7 29.f7 Ke7±) 28...Rxf2 29.Bxe6+ Kd8 30.Rxb7 Nc6 31.Rd7+ Ke8] 
28.Bxe6 White is clearly winning. 
28...Kd8 29.Bxd7 Rh2 30.f4 Rf2 31.f5 Ke7 32.Kd1  1–0

BATUMI CHESS OLYMPIAD 2018 ROUND 8 – HAAST vs KOSTENIUK


This game is from round 8 of the 2018 Batumi Chess Olympiad. It features Anne Haast with White against Alexandra Kosteniuk with Black.

Today’s game features a Giuoco Piano.

Haast,Anne (2345) - Kosteniuk,Alexandra (2559)
43rd Olympiad Batumi 2018 Women Batumi (8.1), 02.10.2018

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d3 Nf6 5.Nc3 0–0 6.Bg5 h6 7.Bh4 Be7 8.Bg3 C50: Hungarian Defence and Giuoco Pianissimo [8.0–0 d6 9.h3 Na5 10.Bb3 Nxb3 11.axb3 a6 12.Re1 c5 13.Bxf6 Bxf6 14.Nd5 Be6 15.c4 Bxd5 16.cxd5 Be7 17.Qc2 1/2–1/2 (43) Grischuk,A (2789)-Malakhov,V (2696) Moscow 2014] 
8...d6 9.d4 

XABCDEFGHY
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6-+nzp-sn-zp&
5+-+-zp-+-%
4-+LzPP+-+$
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9...Nh5N [9...Nxe4 with more complications. 10.Nxe4 d5 11.Bd3 dxe4 12.Bxe4 exd4 13.0–0 Bf6; 9...Nxe4 10.Nxe4 d5 11.Nc3 dxc4 12.d5 e4 13.dxc6 Qxd1+ 14.Nxd1 exf3 15.gxf3 bxc6 16.Bxc7 0–1 (29) Denisov,I (2354)-Predke,A (2467) Moscow 2012] 
10.Nxe5 The position is equal. 
10...Nxe5 11.dxe5 Nxg3 12.hxg3 dxe5 13.Nd5 Bc5 14.Qe2 Be6 15.0–0–0 c6 16.Ne3 Qg5 Hoping for ...Bg4! 
17.Bxe6 fxe6 18.Rd3 Rad8! 19.Rhd1 

XABCDEFGHY
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6-+p+p+-zp&
5+-vl-zp-wq-%
4-+-+P+-+$
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19...Rd4! 20.Kb1 Rxe4 21.Rd7 [21.Re1µ might work better.] 
21...Rd4 [21...b5–+ 22.a4 Bxe3] 
22.R1xd4µ Bxd4 23.Rxb7? [23.a4³] 
23...Bxe3!–+ Black is clearly winning. 
24.fxe3 [¹24.f3] 
24...Qg4! 

XABCDEFGHY
8-+-+-trk+(
7zpR+-+-zp-'
6-+p+p+-zp&
5+-+-zp-+-%
4-+-+-+q+$
3+-+-zP-zP-#
2PzPP+Q+P+"
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xabcdefghy


25.Qe1 [25.Qxg4 Rf1+] 
25...Qxg3! 26.Qe2 [26.Qxg3 Rf1+] 
26...Qg4!  0–1

BATUMI CHESS OLYMPIAD 2018 ROUND 8 – MUZYCHUK vs DANIELIAN


This game is from round 8 of the 2018 Batumi Chess Olympiad. It features Anna Muzychuk with White against Elina Danielian with Black.

Today’s game features a French Defence.

Muzychuk,Anna (2555) - Danielian,Elina (2409)
43rd Olympiad Batumi 2018 Women Batumi (8.1), 02.10.2018

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Ba5 6.Bd2 Nc6 7.dxc5 C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4 
7...Bxc3 8.Bxc3 d4 9.Bd2 White is slightly better. 
9...Nxe5 

XABCDEFGHY
8r+lwqk+ntr(
7zpp+-+pzpp'
6-+-+p+-+&
5+-zP-sn-+-%
4-+-zp-+-+$
3zP-+-+-+-#
2-zPPvL-zPPzP"
1tR-+QmKLsNR!
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10.Nf3N [10.f4 Nc6 11.Nf3 Qd5 12.b4 Nf6 13.Bd3 0–0 14.0–0 e5 15.fxe5 Nxe5 16.Nxe5 Qxe5 1–0 (33) Iordachescu,V (2555)-Cioara,A (2414) Condom 2002] 
10...Qd5 11.Be2 Nf6 12.0–0 Nc6 13.b4 0–0 14.c4 Qf5 White must now prevent ...d3. 
15.Qb1 Rd8 [15...Qxb1² 16.Raxb1 (16.Rfxb1 e5±) 16...Ne4] 
16.Bd3+- Qh5 17.Re1ƒ Keeping Black busy. 
17...Ng4 [17...Nd7± 18.Be4 a6] 
18.Be4 a5 [¹18...Re8 19.h3 Nf6 20.Bxc6 bxc6] 
19.b5 Ne7 20.c6 bxc6 21.bxc6 Re8 [¹21...Rf8 22.Qb5 Nf6 23.Nxd4 Qxb5 24.cxb5 Nxe4] 
22.c7 White is clearly winning. 
22...Ra7 23.Qb6 Ra6 24.Qb5 [Don't play 24.Qxd4 f5+-] 
24...f5 25.Bb7 Bxb7 26.Qxb7 Rc6 27.h3 Nf6 28.Nxd4 Rxc4 29.Nxe6 Ne4 30.Nd8 Qh4 31.Be3 [¹31.c8Q Qxf2+ 32.Kh1 Ng3+ 33.Kh2 Qxe1 34.Qxc4+ Qe6 35.Qxe6+ Kh8 36.Nf7+ Kg8 37.Nh6+ Kh8 [#] 38.Qg8+! Nxg8 39.Nf7#] 
31...Nd6 32.Qb3 a4 33.Qd3 Qf6 

XABCDEFGHY
8-+-sNr+k+(
7+-zP-sn-zpp'
6-+-sn-wq-+&
5+-+-+p+-%
4p+r+-+-+$
3zP-+QvL-+P#
2-+-+-zPP+"
1tR-+-tR-mK-!
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34.Bg5! Qxg5 35.Qxd6 Intending Qe6+ and mate. 
35...h6 36.Qe6+  1–0

Tuesday, October 2, 2018

BATUMI CHESS OLYMPIAD 2018 ROUND 8 – CARUANA vs MAMEDYAROV


This game is from round 8 of the 2018 Batumi Chess Olympiad. It features Fabiano Caruana with White against Shakhriyar Mamedyarov with Black.

Today’s game features a Ruy Lopez.

Caruana,Fabiano (2827) - Mamedyarov,Shakhriyar (2820)
43rd Olympiad Batumi 2018 Open Batumi (8.1), 02.10.2018

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0–0 Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Nbd2 Nc5 10.c3 Be7 11.Bc2 d4 12.Nb3 C83: Open Ruy Lopez: 9 c3 Be7 
12...d3 13.Bb1 Nxb3 14.axb3 The position is equal. 
14...Bf5 15.Be3 [15.b4 0–0 16.h3 Qd7 17.Bf4 Rfd8 18.g4 Bg6 19.Bg3 h5 1–0 (56) Caruana,F (2822)-Mamedyarov,S (2801) Saint Louis 2018] 
15...0–0 16.Bd4 Qd5 17.Re1 d2 18.Re2 Bxb1 19.Rxb1 Nxd4 20.Nxd4 Bg5N 21.g3 c5 22.Nf5 Qd3 23.Nd6 Qg6! 

XABCDEFGHY
8r+-+-trk+(
7+-+-+pzpp'
6p+-sN-+q+&
5+pzp-zP-vl-%
4-+-+-+-+$
3+PzP-+-zP-#
2-zP-zpRzP-zP"
1+R+Q+-mK-!
xabcdefghy

24.h4! Bf4 [24...Bxh4 25.Rxd2] 
25.Ne4 f5 26.Nxd2 Rad8 27.Ra1 Rfe8 28.Qe1 Bxd2 29.Rxd2 Rxd2 30.Qxd2 Qd5+ is the strong threat. 
30...Rxe5= Endgame KQR-KQR 
31.Qd8+ Re8 32.Qd5+ Qe6 33.Rd1 c4 34.bxc4 bxc4 35.Qb7 Re7 36.Rd8+ Kf7 37.Qf3 g6 38.Qf4 Qc6 ( -> ...Re1+) 
39.Rd1 Re4 40.Qh6 Kg8 41.h5 Re8 42.hxg6 [42.Qg5±] 
42...hxg6 43.Kf1 Re6 44.Qh4 Re8 45.Rd4! 

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6p+q+-+p+&
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45...Rc8? [45...a5±] 
46.Qh6!+- Qe6 47.Rh4 Threatening mate with Qh8+. 
47...Kf7 48.Qh7+ [48.Qf4+- Qf6 49.Rh7+ Kg8 50.Qh6] 
48...Kf6± 49.Rd4 aiming for Rd7. 
49...Qe7? [49...Re8± 50.Rd7 Re7 51.Rxe7 (51.Qh8+ Kf7±) 51...Qxe7 52.Qh4+ g5 53.Qxc4 Qd6] 
50.Qh6+- Kf7 [50...Rc6 was necessary. 51.Qh8+ Qg7] 
51.Qd2 Threatens to win with Rd7. 
51...Rc7? [51...Ke6 52.Qh6 Kf7] 
52.Rh4? [52.Rd8] 
52...Kf6 53.Qd4+ Qe5 intending ...Qxd4. 
54.Qb6+ Kg7 

XABCDEFGHY
8-+-+-+-+(
7+-tr-+-mk-'
6pwQ-+-+p+&
5+-+-wqp+-%
4-+p+-+-tR$
3+-zP-+-zP-#
2-zP-+-zP-+"
1+-+-+K+-!
xabcdefghy

55.Qb8! Qh8+ would kill now. [Weaker is 55.Qxa6 Qd5±] 
55...Kf6? [55...Qd6 56.Qh8+ Kf7 57.Rh7+ Ke6] 
56.Qh8+ Ke6 57.Qg8+ Kf6 58.Rd4 Qe7 59.Rd8? [59.f4] 
59...Kg5? [59...Rd7 60.Qh8+ Qg7] 
60.f4+ Kh5 61.Rd2 Qg7 62.Rh2+ White mates. 
62...Kg4 

XABCDEFGHY
8-+-+-+Q+(
7+-tr-+-wq-'
6p+-+-+p+&
5+-+-+p+-%
4-+p+-zPk+$
3+-zP-+-zP-#
2-zP-+-+-tR"
1+-+-+K+-!
xabcdefghy


63.Kg2! g5 64.Qe8  1–0