Candidates Round 10: Nepomniachtchi widens the gap

by Carlos Alberto Colodro
4/22/2021 – In the only decisive game of round 10, Ian Nepomniachtchi widened the gap at the top of the standings by beating Kirill Alekseenko in 31 moves. Russia’s number one thus goes into the final four rounds a full point ahead of Fabiano Caruana, Anish Giri and Maxime Vachier-Lagrave. Thursday will be a rest day. | Photo: Lennart Ootes

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A quick win


All the results from round 10:

Ian Nepomniachtchi 1 - 0 Kirill Alekseenko
Wang Hao ½-½ Alexander Grischuk
Fabiano Caruana ½-½ Ding Liren
Maxime Vachier-Lagrave ½-½ Anish Giri

Round 11 will take place on Friday, April 23 at 4:00 p.m. local time. Pairings:

Ian Nepomniachtchi v Fabiano Caruana
Kirill Alekseenko v Wang Hao
Alexander Grischuk v Maxime Vachier-Lagrave
Anish Giri v Ding Liren

The one decisive game of round 10 finished surprisingly quickly and had a massive effect on the fight to become Magnus Carlsen’s next challenger. Ian Nepomniachtchi needed only 31 moves to defeat Kirill Alekseenko after the latter misplayed the opening. With four rounds to go, Nepo is now a full point ahead of the trio made up by Fabiano Caruana, Anish Giri and Maxime Vachier-Lagrave.

Notably, the leader has faced all three of the chasers with the black pieces — in fact, he has already played Giri twice, scoring a win and a draw. On Friday, after the rest day, the Russian will play Caruana; on Saturday, he will have black against Wang; and, after another rest day, he will play white against Vachier-Lagrave — i.e. Nepo will get a free day to prepare for the two key encounters remaining.

With so much at stake, we expect the chasers to go all-in against the leader, while nerves might also play a big role now that Nepo probably feels his fate is in his own hands.  

Regarding a potential tie for first, things do not look good for Giri, since the head-to-head score is the first tiebreak criterion, and he has already lost against the leader. MVL, on the other hand, beat Nepomniachtchi in round 7, while Caruana would actually become the favourite to take it all if he defeats the Russian on Friday since they drew their first encounter.

Nothing is yet decided, though. As we have witnessed in the past, strange things can happen when the stakes are so high.

FIDE Candidates Tournament 2020-21

The playing hall in Yekaterinburg | Photo: Lennart Ootes

Nepomniachtchi 1 - 0 Alekseenko

Very rarely we see a player as strong as Alekseenko getting in trouble strategically as quickly as he did on Wednesday. Nepo played the English Opening and went for a Catalan-like structure. Alekseenko simply could not address the main problem Black has in these positions: the activation of the light-squared bishop.

 
Nepomniachtchi vs. Alekseenko

By this point, Carlsen was already talking about how Alekseenko needed to show something specific to justify his play so far, since there are lines that have been proven to be much less problematic for black. Moreover, Alekseenko had been spending over three minutes on almost every decision since move 4.

Black did not have a surprise in store. The game continued 8...Be7 (8...Qc7 was called for, planning a quick ...b6 and ...Bb7) 9.0-0 0-0 10.d4 cxd4 11.Nxd4 Qc7 12.Rd1 Rd8 13.Be3 Nb6 14.Rac1

 

This position might seem harmless at first sight, but Black is already in deep trouble with his queen unable to find a safe spot away from potential discovered attacks by the rooks and the minor pieces — especially the light-squared bishop — awkwardly placed on passive squares.

Alekseenko, already way behind on the clock, opted for the anti-positional 14...e5, which was duly responded by 15.Nf5 Bxf5 16.Qxf5

 

Black got rid of the passive bishop, but now White has a great initiative. Nepomniachtchi’s conversion was exemplary, cleanly showcasing the weaknesses of his opponent’s plan. White gave up his dark-squared bishop for the f6-knight after 16...Nc4 17.Bg5 Rxd1+ 18.Nxd1 Rd8

 

Grandmaster Karsten Müller analysed the second phase of the game, explaining why Nepo chose to enter an opposite-coloured bishops position. The sole leader wreaked havoc on Alekseenko’s position along the light squares.

 
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1.c4 Nf6 2.g3 e6 3.Bg2 d5 4.Nf3 dxc4 5.Qa4+ Nbd7 6.Qxc4 a6 7.Qc2 c5 8.Nc3 Be7 9.0-0 0-0 10.d4 cxd4 11.Nxd4 Qc7 12.Rd1 Rd8 13.Be3 Nb6 14.Rac1 e5 15.Nf5 Bxf5 16.Qxf5 Nc4 17.Bg5 Rxd1+ 18.Nxd1 "Opposite colored bishops favor the attacker" - This guideline is valid in the middlegame and the endgame, as long as it is not a pure endgame: Rd8? This loses more or less by force. 18...Qd8! was forced, and Black can still continue to fight. Probably White can win here as well, but more work is needed to prove that and Black has more counterplay than in the game, e.g. 19.Nc3 19.Bxf6 Bxf6 20.Bxb7 Nd6 19.Rxc4 Qxd1+ 20.Bf1 Rd8 19...h6 20.Bxf6 Bxf6 21.Ne4 Nd6 22.Nxd6 Qxd6 23.Bxb7 Rd8 and in all cases White is much better, but over the board two results are still possible. 19.Bxf6 Bxf6 20.Be4 Now Black has too many weaknesses on the light squares and his bishop has no real role contrary to White's mighty bishop in the centre. Qa5 21.Nc3 Kf8 22.Nd5 b5 22...Rxd5 23.Bxd5 Qxd5 24.Qc8+ Ke7 25.Rxc4+- 23.Qxh7 Rxd5 24.Bxd5 Qd2 25.Rxc4! The refutation of Black's concept. bxc4 25...Qd1+ is met by 26.Kg2 Qxd5+ 27.Re4+- 26.e4 Qxb2 27.Qh8+ Ke7 28.Qc8 Qb6 29.Qxc4 The computer likes 29.h4!? c3 30.Bb3+- even more. 29...Qb5?! This is not very tenacious as White does not have to exchange queens to win a pawn. Better is 29...Kf8!? but it does not defend either due to 30.Bxf7 Qb5 as now White can exchange queens: 31.Qxb5 axb5 and now one typical winning plan is 32.Bg6 Bg5 33.Kg2 Ke7 34.Kf3 Kf6 35.Be8 b4 36.Kg4 Bh6 36...Bd2 37.f4 exf4 38.gxf4 Ke6 39.h4 Kf6 40.e5+ Ke6 41.h5 Be3 42.Ba4 Bd2 43.Bb3+ Ke7 44.h6 gxh6 45.f5 Bc3 46.f6+ Kf8 47.Kf5+- 37.f4 exf4 38.gxf4 Ke7 39.Bb5 Kf7 40.Bc4+ Ke7 41.h4 g6 42.e5 Kf8 43.Bb3 Ke7 44.Kf3 Kf8 45.Ke4 Ke7 46.h5 gxh5 47.f5+- 30.Qc7+ Qd7 31.Qc5+! Nepo keeps the queen on the board and so White's victory is clear as opposite colored bishops favor the attacker. 31.Qc5+! Qd6 31...Kd8 32.Qf8+ 32.Qa5+ Ke8 33.Qxa6+- 32...Kc7 33.Kg2 Qd6 34.Qxf7++- 32.Qa7+ Qd7 33.Qxa6+- Of course not 31.Qxd7+? Kxd7 32.Bxf7 g5= as pure opposite colored bishop endings have a very large drawish tendency. 1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Nepomniachtchi,I2789Alekseenko,K26961–02021A13FIDE Candidates 202010.4

Ian Nepomniachtchi, Kirill Alekseenko

Things looked bad for Kirill Alekseenko right out of the opening | Photo: Lennart Ootes

Wang ½ - ½ Grischuk

In round 9, we mentioned how it was surprising to see Alexander Grischuk getting a considerable edge on the clock. The very next day, however, the time-trouble addict returned to his old habits. Grischuk spent no less than 72 minutes reflecting on how to play his 11th move!

 
Wang vs. Grischuk

Indeed, it is a tense position, which has been seen in games featuring Alexander Morozevich (draw) and Ding Liren (won) playing the black pieces. Grischuk finally went for 11...cxd4 and a number of trades in the centre led to another crucial position. This time around, it was Wang who surprised the commentators with his decision.

 

The Chinese sacrificed his queen for two pieces and two pawns with 21.exf6 Bxc2 22.fxe7 Rfe8 23.Nf4 Nb6 24.Nxd5.

At this point, both the engines and Grischuk consider that Black had a considerable advantage, but it is not at all simple to find the most precise moves, as White can create threats against the king with his bishop pair. In the end, an intricate skirmish finished drawn in 41 moves.

Asked about how the 72-minute think had impacted the game, Grischuk responded:

I think it impacted in two ways. One is good for me, as it made my opponent sacrifice a queen probably not very correctly; but, on the other hand, it made me unable to really think after the unexpected 12.Nfxd4.

If you want to see what kind of lines Grischuk was considering, do check out the 18-minute post-game press conference. Classical chess is hard!

 
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1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.e5 Nfd7 5.Nce2 c5 6.c3 Nc6 7.f4 7.Nf3 is more fashionable. Be7 8.Nf3 f6 C11: French: Classical System: 4 e5 and 4 Bg5 dxe4. 9.Be3 0-0 10.g3 Qb6 The position is equal. 11.Qd2
11...cxd4N Predecessor: 11...Kh8 12.Bg2 cxd4 13.cxd4 Bb4 14.Nc3 Qa6 15.Kf2 fxe5 16.fxe5 Ndxe5 17.dxe5 Nxe5 1/2-1/2 (53) Fedoseev,V (2667)-Morozevich,A (2676) Moscow 2016 12.Nfxd4 Nc5 13.exf6! Bxf6 Hoping for ...Qxb2! 14.Nb3 Ne4 15.Qd3 Qc7 16.Bg2 Nd6 17.Bf2 Nc4 18.Qc2 Ne7 19.0-0 e5 20.fxe5! Bf5 21.exf6 White should play 21.Qc1 Qxe5 22.Nf4 21...Bxc2= 22.fxe7 Rfe8 Strongly threatening ...Be4. 23.Nf4 Nb6 Wrong is 23...Rxe7? 24.Nxd5 Qe5 25.Nxe7+ Qxe7 26.Bd5+ Kh8 27.Bxc4+- 24.Nxd5 24.Bd4= 24...Nxd5 25.Bxd5+ Kh8 26.Nd4
26...Qd7! 27.c4
27.Bc4 Be4 28.Be6 27...Bg6 27...Bd3! 28.Rfd1 Bg6 28.Ne6 Rxe7 29.Rae1 Bf7 30.Nxg7 Bxd5 30...Rxe1 31.Bxe1 Kxg7 32.Bxf7 Qxf7 33.Rxf7+ Kxf7 31.Rxe7!= Qxe7 32.Nf5 Qf8 32...Qe4!? 33.Bd4+ Qxd4+ 34.Nxd4 Bxc4 33.Bd4+ Kg8 34.cxd5 Threatens to win with d6. h5 34...h6! 35.d6± White has strong compensation. Kh7 35...Qe8 36.Ne7 Qe8 37.Rf6 37.b3 is interesting. b6 38.Bc3 a5 39.Rf5 Rd8 40.Be5 37...Rd8 38.Bc3
38...Rxd6! Remove Defender. Black has an edge. 39.Rxd6 Qxe7 40.Rd4 Kg6 41.a3 Qe3+ Weighted Error Value: White=0.15/Black=0.24
½–½
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WhiteEloWBlackEloBResYearECOEventRnd
Wang,H2763Grischuk,A2777½–½2021FIDE Candidates 202010.3

Alexander Grischuk

Time-trouble addict Alexander Grischuk | Photo: Lennart Ootes

Vachier-Lagrave ½ - ½ Giri

Playing black, Giri again chose the Sveshnikov Variation of the Sicilian he had used to draw Nepomniachtchi in round 8. Vachier-Lagrave played the line with 7.Nd5, which had been explored at the 2018 World Championship match in London. MVL deviated from the most popular continuations on move 10 and put some pressure on his opponent. 

The Frenchman eventually gained a pawn.

 
Vachier-Lagrave vs. Giri

The d6-pawn looks scary, but it is not easy to push it in a position with opposite-coloured bishops on the board. Giri showed the correct way to defend and a draw was eventually signed.

In the press conference, the players concluded:

Vachier-Lagrave: It’s a bit disappointing because I had a very good position, but at the same time there is nothing obvious that I missed.

Giri: Yeah, and you faced a great defence.

Vachier-Lagrave: The draw master is back at it (smiles).

 
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1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Nd5 Nxd5 8.exd5 Nb8 9.c4 9.a4 deserves study. Be7 10.c5 Na6 B33: Sicilian: Pelikan and Sveshnikov Variations. 11.cxd6 Bxd6 12.Bc4 0-0 13.0-0 Nc7 14.Nxd6 Qxd6
15.Qf3N Predecessor: 15.a4 Rd8 16.Qe2 b6 17.Re1 Nxd5 18.Qxe5 Qxe5 19.Rxe5 Nc7 20.Be3 Be6 21.Bxe6 Nxe6 22.a5 bxa5 23.Rexa5 Rab8 24.Rxa7 1/2-1/2 (24) Wharrier,J (2408)-Biedermann,K (2384) ICCF email 2017 15...b6 16.Rd1 Bb7 17.Bg5 h6 17...f6 18.Be3 Rad8 18.Bh4!= b5 19.Bb3 Na6 20.Qe2 Nc5! 21.Qxb5 Nxb3 22.axb3 Rfb8 23.f3 a6 24.Qa5 Rc8 25.Qa3 Qb6+ 25...Qg6= remains equal. 26.Bf2± Qb5 27.d6 Qd7 28.Qa4 Bc6 29.Qh4 Re8 30.Rac1 Rac8 31.Rc4 Re6 32.Bc5 Rg6 33.Qf2 Re8 34.Re1 e4 35.fxe4 Rg4 36.h3 36.Qc2± 36...Rgxe4= The position is equal. 37.Rexe4 Rxe4 38.Rxe4 Bxe4 39.Qe2 Bb7 40.b4 Qc6 Weighted Error Value: White=0.09/Black=0.11
½–½
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WhiteEloWBlackEloBResYearECOEventRnd
Vachier Lagrave,M2758Giri,A2776½–½2021FIDE Candidates 202010.2

Anish Giri

Anish Giri | Photo: Lennart Ootes

Caruana ½ - ½ Ding

World’s numbers 2 and 3 played an interesting line out of a Spanish Opening, with Ding getting things fully under control by move 17. 

 
Caruana vs. Ding

Ding later commented that he was proud for having figured out that his queen was well-placed on c8, while here, after 17...Nxa5 18.Qc2, Caruana already thought there was no way to play for a win with white.

The Chinese star kept putting pressure, but Caruana’s excellent calculation abilities allowed him to hold a draw.

 
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1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.a4 b4 9.a5 d6 10.d3 Be6 11.Bxe6! is more profitable than 11.Nbd2 at the moment. fxe6 12.c3 Rb8 13.Nbd2 C90: Closed Ruy Lopez with 7...d6: Early deviations. Rb5 14.d4 bxc3 15.bxc3 exd4 Don't blunder 15...Nxa5? 16.c4+- 16.cxd4 Qc8 17.Ba3
17...Nxa5N Predecessor: 17...Qd7 18.Qc2 Nxa5 19.Rac1 Bd8 20.e5 Nd5 21.exd6 cxd6 22.Ne4 Rb6 23.Neg5 Bxg5 24.Nxg5 1-0 (57) Dorer, M-Lindner,J DESC email 2011 18.Qc2 c5 19.e5 19.Qa2!? 19...dxe5 20.dxc5 Nc6 Not 20...Bxc5
21.Rac1!±
21.Ne4 White should play 21.Rac1= 21...Nxe4! 22.Rxe4 Rd8 23.Rae1 23.Nxe5? Nxe5 24.Rxe5 Bf6 23...Bf6 24.h4 h6 25.R4e3 Rd5 26.g4 Qe8 27.Kg2 h5 28.g5 Be7 29.Nxe5
Ng6 is the strong threat. 29...Bxc5 30.Bxc5 Rbxc5 31.Qg6 Qxg6 32.Nxg6 e5 33.f4 Rd2+ 34.R3e2 Rxe2+ 35.Rxe2= Endgame KRN-KRN Nd4 36.Re4 Rc2+ 37.Kf1 The position is equal. Rc1+ 38.Kf2 Rc2+ 39.Kf1 Rc1+ 40.Kf2 Rc2+ Weighted Error Value: White=0.10/ Black=0.04
½–½
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WhiteEloWBlackEloBResYearECOEventRnd
Caruana,F2820Ding,L2791½–½2021FIDE Candidates 202010.1

Ding Liren

The ever candid Ding Liren | Photo: Lennart Ootes 


Standings after Round 10

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Carlos Colodro is a Hispanic Philologist from Bolivia. He works as a freelance translator and writer since 2012. A lot of his work is done in chess-related texts, as the game is one of his biggest interests, along with literature and music.

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