Danzhou Masters: Storm after the calm

by Aditya Pai
8/3/2018 – Big changes occurred on the leaderboard at the conclusion of the penultimate round at the 9th Hainan Danzhou Masters. Tournament leader, Bu Xiangzhi lost his first game of the event to Jan-Krzysztof Duda. This allowed Yu Yangyi, Bu's closest rival to take over the lead after he won a fine attacking game against Vladimir Fedoseev. Le Quang Liem also scored his first win of the tournament in round six against Sam Shankland.

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Yu Yangyi is the new leader

In stark contrast to the quiet round six, the penultimate round of the 9th Hainan Danzhou Masters completely unravelled the leaderboard standings with its gruelling battles. After the dust had settled, the tournament witnessed a new leader emerge in Yu Yangyi, who defeated Russian GM Vladimir Fedoseev in a very complicated Queen’s Gambit.

Yu’s compatriot, Bu Xangzhi, who had been leading the tournament so far, seemed badly out of shape. In his game against Jan-Krzysztof Duda, the Chinese grandmaster erred on multiple occasions, trying to get an attack going against his opponent’s king. Duda did not find the best refutation but still managed to win the game and catch up with Bu in the second place.

Yu Yangyi vs Vladimir Fedoseev

So far, Vladimir Fedoseev had drawn every game in the tournament. But in round 6, this streak of draws came to a halt as Yu Yangyi scored a crushing win over him. Yu was motivated to win from the very start. He chose a sharp line in the Queen’s Gambit with the white pieces and uncorked a novelty on his 9th turn.

Fedoseev continued actively but soon began to go astray. Perhaps, this was because he wasn’t well acquainted with the position. On his 17th turn, an unfortunate blunder lost the Russian grandmaster a full piece. 

 
Yu Yangyi vs Vladimir Fedoseev
Position after 17.exd4

The pin on f6 is quite an annoyance for black and 17…Be7 was necessary. Fedoseev went for 17…Qe7 here, trying to seek counter chances with the discovery. But after a simple 18.Kf1, Qf3 became an unstoppable threat. After 18…Bg4, white has 19.Qa4, pinning the d7 knight and threatening Re1 at the same time.

Fedoseev looked to wriggle out by creating complications but Yu ensured everything was under control. After the tactical skirmishes had fizzled out, Yu had liquidated into an endgame where he had an extra exchange. It took him some time to force resignation but finally made it on the 69th move.

Yu Yangyi and Vladimir Fedoseev during their sixth round game at the Hainan Danzhou Masters

Yu Yangyi is the sole leader after his win against Vladimir Fedoseev | Photo: Official website

 
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1.d4 d5 2.c4 e6 3.Nc3 a6 4.cxd5 exd5 5.Bf4 Nf6 6.e3 D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6 Bd6 7.Bg5 Be6 8.Bd3 Nbd7 LiveBook: 10 Games 9.f4N Predecessor: 9.Nge2 h6 10.Bh4 Qe7 11.Qc2 Rc8 12.h3 c5 13.dxc5 Rxc5 1/2-1/2 (26) Mchedlishvili,M (2600)-Berkes,F (2671) Batumi 2018 9...h6 10.Bh4! g5 11.fxg5 hxg5 12.Bxg5 Rxh2 13.Rxh2 Bxh2 14.Nge2 Bd6 14...Qe7 15.Nf4± c5 16.Nh5 cxd4 17.exd4 Hoping for Qf3. Qe7? 17...Bg4± is a better defense. 18.Qxg4 18.Nxf6+ Nxf6 19.Qb3 b5 18...Nxg4 19.Bxd8 Rxd8 18.Kf1+- 0-0-0 Black wants to play ...Rh8. 19.Nxf6 Rh8 20.Qc2 Not 20.Ncxd5 Bxd5 21.Nxd5 Qxg5± 20...Kd8 aiming for ...Rh1+. 21.Nfe4 f6 22.Nxd6 Qxd6 23.Be3 Qg3 24.Bg1 Rh1 White should prevent ...Qe3. 25.Ne2 Qe3 ( -> ...Bg4) 26.Bf5! But not 26.Rc1? Bg4-+ 26...Nb6 intending ...Nc4. 27.b3 And now Bxe6 would win. Rxg1+ 28.Nxg1 Qxd4 29.Rd1 29.Bxe6 Qxa1+ 30.Kf2 Qd4+ 31.Kf1 Qa1+ 32.Kf2 Qd4+ 33.Kf1 Qa1+= 29...Bxf5 30.Rxd4 Bxc2 Endgame KRN-KBN 31.Nf3 Kc7 32.Kf2 Kd6 32...Be4 keeps fighting. 33.Nd2 Bc2 33.Rg4 Nd7 34.Rg7 Bb1
35.a3! Be4 36.Nd4 b6 37.Ke3 a5 38.g3 Ne5 39.Rg8 Kd7 40.Rb8 Kc7 41.Re8 Kd6 42.Rc8 Kd7 43.Rf8 Kc7 44.Kd2 Nd7 45.Re8 Nc5 46.Ke3 Bg6 47.Rg8 Be4 48.Rf8 Nd7 49.Re8 Nc5 50.b4 axb4 51.axb4 Kd7 52.Rg8 Weaker is 52.bxc5 Kxe8 53.cxb6 Kd7= 52...Nd3 53.Rg7+ Kc8? 53...Ke8 54.Rb7 Ne5 54.Nc6 White is clearly winning. Ne1 55.g4 Nc2+ 56.Kf4 Bg2 57.Rh7 b5 57...Bf1 58.Rf7 d4 59.Rxf6 d3 58.Rh2 Ne1 59.Kf5 Nf3 60.Rxg2 Nh4+ 61.Kxf6 Nxg2 KN-KN 62.g5 Kd7 63.g6 White wants to mate with Ne5+. Nf4
64.Nd4! Nh5+ 65.Kg5 Ng7 66.Nf5 Ne6+ 67.Kf6 Nc7 68.g7 Ne8+ 69.Ke5 Precision: White = 95%, Black = 43%.
1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Yu,Y2762Fedoseev,V27071–020189th Hainan Danzhou GM 20186

Bu Xiangzhi vs Jan-Krzysztof Duda

Like Yu Yangyi, Bu Xiangzhi also went all out against his opponent, hunting for a win. In a Classical Nimzo Indian, he generated a dangerous looking kingside attack with the white pieces after his opponent, Jan Krzysztof Duda, leaned with most of his pieces towards the queenside. 

 
Bu Xiangzhi vs Jan-Krzysztof Duda
Position after 20...Nc5

White came up with the flashy 21.Bf6 here. If the bishop is taken with 21…gxf6, white gets a strong attack on the black king after 22.Qh6. Duda decided not to play with fire and declined the sacrifice with 21…Nbd7. But after 22.e5 Nxf6 23.exf6 Qxd5 24.fxg7 Rd8 25.Qh6, white still seemed to have a strong initiative. Duda managed to keep things under control, nevertheless, keeping his pieces centralized and soon Bu began to push too hard.

 
Bu Xiangzhi vs Jan Krzysztof Duda
Position after black's 28th move

By this point, the position had already begun to tip in Duda’s favour when Bu blundered with 29.Rc1?. Here, Duda could have delivered the knock-out punch with 29…Qxb2 after which white is forced to give up an exchange with 30.Rxe4 Bxe4 and has no compensation for the material deficit. Duda, instead, decided to enter an endgame with 29…Nxf2 30.Rxb1 Ng4+ 31.Kg1 Nxh6. Within a few more moves, Duda was two pawns up and had no problems converting the endgame.

Bu Xiangzhi playing his sixth round game against Jan Krzysztof Duda at the Hainan Danzhou Masters

Bu's first loss of the event cost him his pole position | Photo: Official website

 
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1.c4 Nf6 2.Nc3 e6 3.d4 Bb4 4.Qc2 0-0 5.a3 Bxc3+ 6.Qxc3 d5 7.Nf3 dxc4 8.Qxc4 b6 9.g3 E36: Nimzo-Indian: Classical: 4...d5 5 a3 9.Bg5 Ba6 10.Qa4 Qd7 11.Qc2 c5 12.Bxf6 gxf6 13.Rd1 Qe7 14.g3 Bb7 15.Bg2 Rd8 16.0-0 Nd7 1/2-1/2 (30) Mamedyarov,S (2808) -Caruana,F (2816) Paris 2018 9...Ba6 10.Qa4 LiveBook: 3 Games Qc8N Predecessor: 10...Qd7 11.Qxd7 Nbxd7 12.Bg5 c5 13.Bg2 Rac8 14.Rd1 h6 15.Bxf6 Nxf6 16.dxc5 Rxc5 1/2-1/2 (58) Peng,Z (2352)-Ratsma,R (2265) Amsterdam 2018 11.Bg2 The position is equal. c5 12.Bg5 Bxf6 is the strong threat. Nbd7 13.Rc1 Qb7 14.0-0 Threatens to win with Ne5. Nd5 14...Bxe2 15.Ne5 Qa6 16.Qxa6 Bxa6 15.Rfe1!± b5 16.Qc2 16.Qd1± 16...Rac8 17.Qd2 c4 18.e4 N5b6 19.h4 Qa8 20.d5 Nc5 21.Bf6 Nbd7 22.e5 22.Bc3 22...Nxf6= Wrong is 22...gxf6? 23.exf6 Qxd5 24.Qh6+- 23.exf6 Threatening mate with Qg5. Qxd5 24.fxg7 Rfd8! 25.Qh6 Bb7 Hoping for ... Nd3. 26.Re5 Qd3 27.Rc3 27.Nh2!= Qd2 28.Qxd2 Rxd2 29.Bxb7 Nxb7 30.Rxb5 27...Qb1+ 28.Kh2 Ne4 Black is in control. 29.Rc1? 29.Rxb5 Nxf2 30.Qh5 Rd1 29.Qf4 Nxc3 30.bxc3 29...Nxf2? 29...Qxb2 30.Ng5 Nxg5 31.Bxb7 Qxe5 32.hxg5 Rc5 30.Rxb1-+ Ng4+ 31.Kg1 Nxh6 32.Rxb5 c3 33.bxc3 Don't go for 33.Rxb7? c2-+ 33...Bxf3 34.Bxf3 Rxc3 35.R5b3 Rdd3 36.Rxc3 Rxc3 Endgame KRB-KRN 37.Kg2 Rxa3 38.g4 Kxg7 39.Rb7
39...a5! 40.Ra7
40...a4! 41.Kf2 41.Kg3 41...Ra2+-+ 42.Ke3 a3 43.Be2 Rb2 44.h5 Rb4 45.g5 45.Kd2 was necessary. 45...Nf5+ 46.Kd2 Rb2+ 47.Kd3 Rb3+ 48.Kc4 Rg3 49.g6? 49.Ra8 Rxg5 50.Rxa3 49...hxg6 Black is clearly winning. 50.hxg6 Kxg6 51.Bd3 Kf6 52.Rxa3 Nd6+ 53.Kb4 e5 54.Kc5 e4 55.Kd4 Precision: White = 50%, Black = 63%.
0–1
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WhiteEloWBlackEloBResYearECOEventRnd
Bu,X2712Duda,J27370–120189th Hainan Danzhou GM 20186

Le Quang Liem vs Sam Shankland

Le Quang Liem might not have been at his most impressive so far, but in round 6, he feistily went after Sam Shankland to score his first win of the tournament. In a middle game that arose from a Queen’s Indian Defence, the Vietnamese grandmaster gave up a couple of pawns to generate play against the black king and won an exchange on the 33rd move. 

 
Le Quang Liem vs Sam Shankland
Position after black's 32nd move

Here, after 32.Re2, Shankland played 32…Qb4, allowing white a strong discovered attack with 33.Ng4.  Having lost an exchange, Shankland began to seek counterplay in his queenside pawn majority when another disaster struck.

 
Le Quang Liem vs Sam Shankland
Position after 37.f5

Black had just played 36…c3 and white had responded with 37.f5, threatening to take on g6 first and then on f7. Shankland tried to parry the threat with 37…Kg7 only to realize, that after 38.f6+ Kg8, 39.Qe7! was just crushing.  

Le Quang Liem and Samuel Shankland playing their sixth round game at the Hainan Danzhou Masters

Le Quang Liem scored an impressive win over Sam Shankland in the sixth round | Photo: Official website

 
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1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 7.Nc3 c6 8.Bf4 LiveBook: 4 Games. E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+ d5 9.cxd5 Nxd5N Predecessor: 9...cxd5 10.Nb5 Na6 11.0-0 0-0 12.Rc1 Ne4 13.h4 Nd6 14.a4 Nc4 15.Ne5 Na5 16.Bh3 Qe8 17.h5 Nc6 18.h6 g5 19.e4 dxe4 20.Nxc6 Bxc6 21.Bxg5 Bxg5 1/2-1/2 (66) Bacrot,E (2717)-Ivanchuk,V (2729) Morelia/Linares 2006 10.0-0 The position is equal. 0-0 11.Qc2 Nxf4 12.gxf4 Nd7 13.Rfd1 Qc7 14.e3 Rfd8 15.Rac1 Rac8 16.f5 exf5 17.Qxf5 g6 18.Qh3 c5 19.d5 d6! is the strong threat. Bf6 20.Nd2 Qb8 21.Nde4 Bg7 22.Rc2 Nf8 23.Rcd2 Rd7 24.Qh4 Qe5 25.f4 Qe8 26.Kh1 White should play 26.Nf6+ Bxf6 27.Qxf6 26...f5 27.Ng5 Bxc3 27...h6 28.Nf3 Rcd8 28.bxc3= Qxe3 29.Nf3! Qxc3 30.Ne5 Black is under pressure. Rg7 31.Qf6 Black must now prevent d6. Re8 Threatens to win with ...Qe3. 32.Re2 Qb4
32...Ree7= 33.Ng4!± fxg4 34.Rxe8 Rf7 35.Qe6 White has strong compensation. c4?
35...Qa4± keeps fighting. 36.Re1 Qd4 36.Rf1!+- Less strong is 36.Qxg4 c3 36...c3
37.f5! Inferior is 37.Qxg4 Qb2= 37...Kg7? 37...gxf5 38.a3 Qb3 38.f6+ Kg8
39.Qe7! Precision: White = 68%, Black = 54%.
1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Le,Q2728Shankland,S27271–020189th Hainan Danzhou GM 20186

Wei Yi vs Vidit Gujrathi

In comparison to the other games of the day, Wei Yi’s game against Vidit Gujrathi was a rather tepid one. Vidit went for the Open variation of the Ruy Lopez with the black pieces and managed to equalize very comfortably out of the opening. Starting at around move 17, a long series of exchanges liquidated the position into a rook and pawn endgame where Wei Yi had an extra pawn. However, Wei did not push very hard for a win in this endgame and a draw was agreed one move after the first time control. 

Wei Yi and Vidit Gujrathi during their game in the sixth round of the Hainan Danzhou Masters

The game between Wei Yi and Vidit Gujrathi was the only draw of the round | Photo: Official website

 
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1.e4 Pavlovic,M e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Nxe4 6.d4 b5 7.Bb3 d5 8.dxe5 Be6 9.Qe2 Be7 10.Rd1 0-0 11.c4 bxc4 12.Bxc4 Bc5 13.Be3 Bxe3 14.Qxe3 Qb8 15.Bb3 Na5 C81: Spanische Partie (Offene Verteidigung/Keres System) 16.Nd4 c5 17.Nxe6 fxe6 18.f3 c4 19.fxe4 cxb3 LiveBook: 5 Partien 20.exd5 Schwarz sollte axb3 verhindern. bxa2 21.Rxa2 Nc4 22.Qd4 Qb3 Schwarz puts up resistance 23.Nc3
und nun wäre h3 stark für Weiss. 23...Rac8N 24.Rb1 Keinesfalls 24.dxe6?! Nxb2 25.Rb1 Qxc3± 24...Nd2 25.Qxd2 Rxc3! 26.Qxc3 Qxa2= Endspiel KDT-KDT 27.Rd1
Und d6 würde nun gewinnen. 27...exd5 28.Qd4 Qc4 Und weiter mit ...Tf1+! wäre nett. 29.Qxd5+ Qxd5 30.Rxd5 KT-KT Re8 31.Rd6 Rxe5 32.Rxa6 Re2 32...Rb5 33.Rb6± h5 34.h4 34.b4± 34...Re4 35.g3 Re3 35...Re2 36.Kf2± Rd3 37.Rb5 Kf7
38.b4 38.Rf5+!± Ke6 39.Rg5 39.Rxh5 Rb3± 38...Rb3 39.Rf5+ Ke6! 40.Rg5 Rxb4 41.Rxg7 Droht Tg6+ und aus. Rb5! Precision: Weiß = 43%, Schwarz = 72%.
½–½
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WhiteEloWBlackEloBResYearECOEventRnd
Wei,Y2729Vidit,S2718½–½20189th Hainan Danzhou GM 20186

Standings after round 6

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Aditya Pai is an ardent chess fan, avid reader, and a film lover. He holds a Master's in English Literature and used to work as an advertising copywriter before joining the ChessBase India team.

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