Reports Mar 28, 2019 | 4:51 PMby Colin McGourty

US Chess Champs 7: Explosive chess

Hikaru Nakamura still leads the US Chess Championship after beating Varuzhan Akobian in Round 7, but he can’t relax at the top with Fabiano Caruana and Leinier Dominguez breathing down his neck just half a point behind. They’re joined by Sam Sevian, who demolished Ray Robson in 25 moves with the black pieces. In the women’s event it seemed as though Anna Zatonskih would take over the lead until Jennifer Yu yet again pulled off an unlikely win to move to 6.5/7.

Leader Hikaru Nakamura said Ray Robson (in bright blue) "just lost his mind" in his crushing loss to Sam Sevian | photo: Austin Fuller, official website 

You can replay all the US Championship games using the selector below:

And here’s the Round 7 commentary from St. Louis, including interviews with many of the players:

How to beat underdogs with the black pieces

Hikaru Nakamura last won the US Chess Championship in 2015, but he's leading this year on +3 after 7 rounds | photo: Lennart Ootes, official website

Hikaru Nakamura and Fabiano Caruana both faced opponents they felt they needed to beat in Round 7, but the way they approached the games couldn’t have been more different. Hikaru took the “classical” approach, playing a somewhat dubious system with 1…d6, 2…g6 to get an unbalanced game against Varuzhan Akobian, who had lost his last two games.

There was a modern twist on that approach, though, since Hikaru had prepared the line deeply with a computer and also knew where the computer overestimated White’s position. He didn’t blink for 14 moves, but then began to use plenty of time as it seemed Akobian was on the verge of solving his problems. He never did, though (Nakamura mentioned 20.Bxe4?! instead of 20.Nxe4 as the key mistake, while the computer still thinks 21.Nb5! might have held the balance), and White was a pawn down in a difficult ending. The last straw came after 39.a3?!

39…d4+! Akobian understandably didn’t want to trade the d4-pawn for the b3-pawn and played 40.Kc4, but some offers can be refused! 40…d3! 41.Kc3 d2! and White had to take. The rest was just agony.

Wins are like London buses for Fabiano Caruana! | photo: Lennart Ootes, official website

Fabiano Caruana, meanwhile, allowed a quiet line of the Queen’s Gambit Accepted where queens were off the board on move 8. If the aim was to bore the maverick Timur Gareyev into submission it didn’t seem to be working for most of the game, but then approaching move 60 Fabiano began to weave his magic to set up something very close to zugzwang. If he’d chosen better on move 66 the game might have ended logically:

66…Rdxa4! was winning. Caruana commented of that move that it “looks counterintuitive – you should be mating not grabbing a pawn - but the point is not the pawn but Ra1”. Indeed, after 67.Bxh3 (e.g. 67.Be2 also loses the bishop to 67…R4a3 68.Kf1 Re3!) 67…Ra1! 68.Kd2 Rxb1 69.Rxb1 the bishop falls.

Caruana quickly played 66…Rd5? instead, since he thought it was winning, but later confessed, “I missed so many moves, it’s embarrassing, I don’t know where to start!” He’d thought, like Yasser initially, that after 67.Bxh3 he could play 67…Re5+ 68.Kf1 Bc4+ 69.Kg1 Rg5+ with mate, but in fact 70.Bg4 defends everything there. In the game 67…Rh5 was met by 68.Bg2!, and although Black does pick up the bishop with 68…Rxh1+ 69.Bxh1 Rh2 it turns out that all he could force was a theoretically drawn Rook + Bishop vs. Rook ending.

Gareyev had been here before in the same tournament against Sam Sevian, when he defended successfully in 117 moves. This time, though, he got into difficulty and finally blundered on move 122:

122.Rh5! was essential to stop a check on b5, while in the game after 122.Rg3? Rb5+! there was no longer any escape. It ended 123.Ka4 Rh5 124.Rf3 Rh1 125.Ka5 Rh6 White resigns. Timur was still 12 moves short of being able to claim a draw by the 50-move rule.

That second win in a row kept Caruana just half a point behind Nakamura, where he was joined by Leinier Dominguez, who has shown no signs of rust in Saint Louis. He also moved to an unbeaten +2 by grinding down Aleksandr Lenderman.

Leinier Dominguez said he kept working on his chess over his two-year break from classical chess | photo: Lennart Ootes, official website

They’re also joined by Sam Sevian, who won the most spectacular game of the round. By move 18 Ray Robson, playing White, had already allowed his opponent to build up a fearsome army of pieces on the kingside:

The computer gives White chances of surviving at the cost of a pawn or exchange (e.g. 19.Nc4 Be4 20.Rxe4), but Ray decided if he was going to suffer it would be for something as he grabbed a pawn with the hugely optimistic 19.Qxb7? Nakamura later commented, “Ray just lost his mind”, and the punishment after 19…Rab8 20.Qxa7 Rxb2! was swift and brutal:


18-year-old Sam Sevian is the only player to have matched Nakamura's 3 wins so far... though he did also lose to Hikaru! | photo: Lennart Ootes, official website

Wesley So is a full point point behind the leaders after being held to a draw by Jeffery Xiong, while defending champion Sam Shankland was once again frustrated. This time just when it seemed Sam’s pawn-play mastery might see him gain a winning advantage, 15-year-old Awonder Liang managed to build a fortress. 

Awonder Liang has brothers named Adream and Able and a sister Angelva - it seems sometimes names matter! | photo: Austin Fuller, official website

It entertained the watching super-GM crowd, who didn't all catch the joke (note all three will be playing in Shamkir this Sunday!):

The standings look as follows with 4 rounds still to go:

Jennifer Yu keeps on winning

The suffering goes on for Irina Krush, as her loss to rival Anna Zatonskih was her fourth defeat in five games | photo: Lennart Ootes, official website

It looked as though we were going to see a change of leadership in the Women’s US Championship after Anna Zatonskih beat her great rival Irina Krush to move to 6/7. It was painful to watch 7-time champion Irina fall for the kind of devilish tactics that might usually be child’s play to her (though it’s worth noting her mistake came on move 29, and that after that there was essentially no way to save the game):

31…Ra2! 32.Qxa2 (32.Rb2 Rxb2 33.Qh2+ doesn’t help) 32…Qh2+ was the final blow.

Meanwhile Jennifer Yu had squandered a big opening advantage against Sabina Foisor and was in serious danger of losing, but then the game turned again and when Sabina decided to play on instead of taking a draw by repetition it was all the help Jennifer needed. She confidently demonstrated the power of pawns supported by a bishop pair and went on to take the full point and move to 6.5/7!

17-year-old Jennifer Yu seized her chance | photo: Lennart Ootes, official website

Just one game was drawn in the women’s section, while the beauty prize might be given to Ashritha Eswaran, who took advantage of Carissa Yip awkwardly placing her pieces in a good position. 38.Bf5! was the winning move:

Black is defenceless against a slow moving attack: 38…Qh8 39.h5! Bc6 40.h6 Be4 41.Qg7+ Qxg7 42.hxg7+ Kg8 43.Bxe4 and Black resigned since the rook or bishop will give mate in 4 moves.

Round 8 of the US Championship has the potential to be decisive with the top five and defending champion playing each other:

  • Nakamura vs Shankland
  • Caruana vs So
  • Sevian vs Dominguez

Don’t miss all the action from 13:00 local time, 19:00 CET live here on chess24: Open | Women

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