American Cup: Nakamura and Krush win champions’ brackets

by Carlos Alberto Colodro
3/23/2023 – Hikaru Nakamura and Irina Krush emerged victorious in the champions’ brackets of the open and women’s sections of the American Cup. Both multiple US champions won their matches in tiebreaks. Nakamura got the better of Wesley So by a 4-2 score, while Krush defeated Alice Lee more quickly, by a 3-1 score. In the elimination brackets, Levon Aronian and Nazi Paikidze remain in contention in each of the two sections. | Photo: Saint Louis Chess Club / Lennart Ootes

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All about nerves

Both champions’ brackets at the American Cup saw nerves playing a central role in Wednesday’s matches. Wesley So misplayed better positions against Hikaru Nakamura in the first set of tiebreakers before completely losing the thread in the second set of blitz games. Meanwhile, Alice Lee crumbled under pressure in the two rapid games she played against Irina Krush, uncharacteristically missing tactical ideas even while in the driver’s seat.

Nakamura and Krush thus won the champions’ brackets, getting bonus prizes of $10,000 and $5,000 respectively. They have not won the events yet, however, as they will face the winner of the elimination brackets in matches starting Friday. Both will get a rest day and a second chance in case they lose those matches, as per the rules of the double-elimination format.

Before the grand finals, So and Lee will face the players who won their matches in the elimination bracket on Wednesday — i.e. Levon Aronian and Nazi Paikidze. Aronian knocked out Leinier Dominguez in the open, while Paikidze eliminated Gulrukhbegim Tokhirjonova in the women’s.

American Chess Cup 2023

Thanks to the Make-A-Wish Foundation, Collin Graham got to play the first move in the Wesley So v Hikaru Nakamura match | Photo: Saint Louis Chess Club / Lennart Ootes

Nakamura 4 - 2 So

Following the pair of draws in the classical portion of the match, So obtained a clear advantage with white after playing remarkable chess in the first 25-minute game of the playoffs.

 
So vs. Nakamura - Rapid game #1

The commentators could not quite understand why So did not play the winning 47.Rxf7 here, when his active army is sure to break all of Black’s defences shortly. So’s 47.Rc7 did not give away all his advantage, but allowed Nakamura to create counterplay after grabbing the b-pawn with the knight (via a check from d3).

Soon enough, however, Black did manage to equalize, and the same hesitation shown by So in the diagrammed position above prompted him to blunder the game away in a drawn position with rook and knight against rook and pawn.

 

Even rook and knight versus rook leads to a draw in almost all cases, and surely So could have held this position with White had he not been so eager to end the game at once — 100.Rxe6+ was a gift for Nakamura. After 100...Kxe6 101.Kg6 Rd1, Black easily stops the passed pawn thanks to his active king on the e-file.

Although So played better than his opponent in the early stages of the game, it was Nakamura’s nerves of steel which gave him the victory, a factor that would turn out to be decisive later on as well.

So, in fact, won the next game on-demand, again outplaying Nakamura in the early middlegame. However, in the 5-minute games that followed, Nakamura was clearly stronger when the position heated up and a steady hand was needed to play the most critical lines in sharp situations. The famed streamer won two games in a row to secure a spot in the tournament’s grand final.

 
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1.e4 7 e5 38 2.Nf3 18 Nc6 1:14 3.Bb5 7 Nf6 18 4.d3 8 Bc5 46 5.0-0 13 Nd4 1:01 The position is equal. 6.Be3 44 C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5. Nxf3+ 38 7.Qxf3 32 Bxe3 29 8.Qxe3 7 c6 12 8...0-0 9.d4 d6 10.Be2 c6 11.dxe5 dxe5 12.Nd2 Be6 13.a4 Qb6 14.Qxb6 axb6 15.Rfd1 Rfd8 16.b3 Kf8 ½-½ Nakamura,H (2761)-So,W (2754) Abidjan GCT rapid 2019 (8) 9.Bc4 6 d6 7 10.Nd2 9
10...Qb6N 43 Predecessor: 10...0-0 11.Rfe1 Be6 12.h3 b5 13.Bb3 Nd7 14.Nf3 Nc5 15.d4 Nxb3 16.axb3 f6 ½-½ Martinez Alcantara,J (2591)-Tari,A (2672) Chess.com Rapid Wk22 Swiss 2022 (7) 11.Qxb6 15 axb6 8 12.f4 3 exf4 1:49 13.Rxf4 17 b5 11 14.Bb3 5 Be6 10 15.a3 5 0-0 9:35 16.Raf1 3:11 Rae8 4:19 17.Bxe6 3:58 Rxe6 2:22 18.Nf3 1:03 d5 44 19.e5 1:32 Nd7 27 20.d4 11 f6 48 21.h3 2:52 Re7 32 22.exf6 52 Rxf6 1:38 23.Rxf6 5 Nxf6 6 24.Re1 26 Rxe1+ 37 25.Nxe1= 2       Endgame KN-KN Ne4 13 26.Nd3 23 Kf7 6 27.Kf1 25 Ke6 5 28.Ke2 4 g5 16 29.g4 24 h6 7 30.Ke3 12 Kd6 20 31.Ne5 4:45 Ke6 17 32.Nd3 3 Kd6 4 33.Ne5 46 Ke6 7 34.Nd3 5 Not much happened in this game. Weighted Error Value: White=0.01 (flawless) /Black=0.01 (flawless)
½–½
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WhiteEloWBlackEloBResYearECOEventRnd
Nakamura,H2768So,W2761½–½2023American Cup Champions 20233.1
So,W2761Nakamura,H2768½–½2023American Cup Champions 20233.2
So,W2761Nakamura,H27680–12023American Cup Champions 20233.3
Nakamura,H2768So,W27610–12023American Cup Champions 20233.4
So,W2761Nakamura,H27680–12023American Cup Champions 20233.5
Nakamura,H2768So,W27611–02023American Cup Champions 20233.6
 

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Hikaru Nakamura

Fully focused — Hikaru Nakamura | Photo: Saint Louis Chess Club / Lennart Ootes


Nakamura’s recap: “Dear YouTube, the Bongcloud works!”


Aronian 1½ - ½ Dominguez

Two Saint Louis residents — who are also good friends — faced off in the elimination bracket. Aronian, who came from knocking out 2022 winner Fabiano Caruana in style, won the first game with white after getting a couple of extra pawns in an endgame with rooks and bishops of opposite colours.

 
Aronian vs. Dominguez - Rapid game #1

Engines give white only a slight edge in this position, despite the two extra pawns. However, defending this in a rapid game against a player as resourceful as Aronian was never going to be easy for Dominguez. Aronian had to work hard, but finally managed to get a 59-move win.

A draw in the second game means the ever-dangerous Aronian is still in contention for overall tournament victory.

 
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1.e4 3 e5 2 2.Nf3 2 Nf6 3 3.Nxe5 3 d6 2 4.Nf3 2 Nxe4 3 5.Bd3 2 5.d4 d5 6.Bd3 Nc6 7.0-0 Be7 8.Nbd2 Bf5 9.Re1 Nxd2 10.Qxd2 Qd7 11.Bxf5 Qxf5 12.Ne5 Nd8 13.Qc3 Ne6 14.Bd2 Bd6 15.Re3 0-0-0 16.Rae1 Bxe5 17.Rxe5 Qg4 18.f4 g6 19.Qe3 Kb8 ½-½ Aronian,L (2755)-Dominguez Perez,L (2747) USA-ch Saint Louis 2022 (2) 5...d5 8 6.0-0 4       C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves. 6.Qe2!? 6...Be7 9 7.Re1 2 0-0 5 8.Bxe4 4 White is slightly better. dxe4 2 9.Rxe4 3 c5 5 10.d3 23 Nc6 11 11.Nc3 1:03 b6 27 12.Bf4 41 Bb7 5 13.Re1 2
13...Nd4N 3:02 Predecessor: 13...Rc8 14.h3 Nd4 15.Nxd4 cxd4 16.Ne4 Qd5 17.f3 Rc6 18.Qd2 Rg6 19.Qf2 Rc8 1-0 Caruana,F (2758)-Martinez Alcantara,J (2591) Chess.com Rapid CGC KO 2022 (2.3) 14.Nxd4 50 cxd4 3 15.Ne4 3 Rc8 43 16.Nd2 42 Re8 1:54 17.f3 1:49 h6 2:18 18.Bg3 3:57 Qd5 9:36 19.Re2 3:12 Bf8 2:12 20.Rxe8 3:29 Rxe8 2 21.Nb3 1:42 g5 1:24 22.h3 30 h5 40 23.Qd2 38 23.Qf1! 23...g4!= 2:51 24.hxg4 2 hxg4 0 25.Rf1 44 gxf3 51 26.Rxf3 56 Qh5 2 27.Rf2 2 Bh6 47 This pair of bishops is nice. 28.Bf4 2 Bg7 2 29.Nc1 46       Re6 4 30.Ne2 20 Rg6 12 30...Qg4= 31.Ng3± 26 Qd5 58 32.b3 50 Bf6 20 Hoping for ...Bh4. 33.Qe2! 1:44 Bc6 15 Inhibits Qe8+. 34.Qh5 1:15 Prevents Bh4 Qxh5 26 35.Nxh5 1 Bh4 15 36.g3 5 Be7 25 37.Re2 43 37.Kf1± 37...Kf8!= 8 38.Rh2 1:17 Bf3 15 39.Be5 53 39.Bb8= remains equal. 39...Bg5? 20 Don't do 39...Rg5 40.Nf6 40.Bxd4? loses. Bxh5 41.Bf2 Bd6-+ 40...Kg7 41.Nd7+ 41.Bxd4? too greedy. Bxf6 42.Bxf6+ Kxf6-+ 41...f6 42.Rf2± 42.Bxd4 Rd5 39...Re6! and life is bright. 40.Bg7+ 40.Bxd4? Re1+ 41.Kf2 Re2+       Skewer, Double Attack 42.Kxf3 Rxh2-+ 40...Kg8 40.Bxd4± 30 Re6 1 Threatens to win with ...Re1+. 41.Nf4 1:10 Bxf4 9 42.Rh8+ 1 Ke7 1 43.gxf4 1       Endgame KRB-KRB Re2 6 44.Rc8 2 Ke6 13 45.Rc7 19 f6 13 46.a4 36 Kf5 6 47.Bf2 16 47.Kf1± 47...Rd2 19 48.Kf1 13 Bd1 11 49.Ke1 13 Rxc2 2 50.Rxa7 2 Bg4 18 51.Bxb6 4 51.Re7! was preferrable. 51...Kxf4 7 51...Re2+!= 52.Kf1 Rb2 52.Re7 5 Rb2 22 52...Bf5± was worth a try. 53.Re4++- 20 Kf3 6 53...Kf5+- 54.b4 Bf3 54.Rb4 27 54.b4± 54...f5? 12 54...Be6 55.a5 6 Ra2 4 56.Kd1! 9 Kc1 is the strong threat. f4 21
57.Kc1! 1 Black must now prevent Kb1. Bf5 6
58.Rd4 13 58.Kb1!+- Rd2 59.Ka1 58...Ke2? 11       58...Bg6± 59.Kb1 Rd2 59.Rxf4 2 Weighted Error Value: White=0.16 (very precise) /Black=0.22 (precise)
1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Aronian,L2745Dominguez Perez,L27431–02023American Cup Elimination 20233.1
Dominguez Perez,L2743Aronian,L2745½–½2023American Cup Elimination 20233.2
 

Levon Aronian

Levon Aronian | Photo: Saint Louis Chess Club / Lennart Ootes

American Chess Cup 2023

Krush 3 - 1 Lee

For a second year in a row, Krush and Lee faced off in the final match of the champions’ bracket. Two draws in classical games were followed by a rapid game in which a materially balanced position with a symmetrical pawn structure seemed to be heading to a draw.

 
Lee vs. Krush - Rapid game #1

Here Lee needed to be a bit careful and play 43.Kg3 instead of immediately grabbing the pawn with 43.Rxa6. In the game, after 43...Nf4+ 44.Kh2 Nxg2 there is only one move that keeps the balance for White.

 

Again 45.Kg3 is the way to go — and again the youngster overplayed her hand by going for queenside activity with 45.Ra8.

Krush went on to grab the h-pawn immediately and gobbled up the e and f-pawns later on, as White’s passer on the a-file turned out not to be a real threat to her opponent. In the end, Krush sacrificed her knight for that pawn, and swiftly pushed her four connected passers to get ahead on the scoreboard.

(Note that in the first diagram, after 43.Kg3 Nf4 White has 44.Bf2, defending her g-pawn.)

Lee went all-in with black in the rematch, but it was Krush who managed to break through with an attack on the kingside. The 8-time US women’s champion was visibly relieved after beating her young-yet-fierce opponent.

 
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1.c4 4 c6 5 2.e4 18 d5 5 3.exd5 9 cxd5 7 4.cxd5 8 Nf6 47 5.Nc3 16 g6 2:20 6.Bc4 8:25 Bg7 3:04 7.Nge2 2:13 0-0 5:19 B10: Caro-Kann: 2 d3 and 2 c4. 8.0-0 1:07 Nbd7 12:05 9.d3 59 a6 8:19 White is slightly better. 10.a4! 1:08 b6 1:19 11.h3 16:34 White is more active. Bb7 4:31
12.d4N 1:45 12.Be3 Predecessor: 12.Be3 Rc8 13.Rc1 Ne8 14.Ne4 Nd6 15.Nxd6 exd6 16.Nd4 Qh4 17.Nc6 Bxb2 18.Rb1 1-0 Netzer,J (2208)-Saada,J (2304) FRA-ch Accession 2010 (1) 12...b5= 4:43 The position is equal. 13.axb5 1:03 Nb6 1:17 14.Bd3 10:33 14.bxa6? perishes. Nxc4 15.Qd3 Nd6 14...axb5 1:18 15.Rxa8 7 Qxa8 6:38 16.Bxb5 10 Nfxd5 5:28 17.Nxd5 6:44 Bxd5 7:32 18.Nf4 3:48 Bb7 2:51 19.Re1 9:40 e6 8:16 20.Bf1 14 Rd8 31 21.Qb3 3:37 Bxd4 5:26 22.Be3 8:45 Bxe3 53 23.Qxe3 25 Nd5 4:03 24.Nxd5 3 Rxd5 35 25.b4 1:27 Bc6 59 26.g3 5:42 Rd7 2:57 27.b5 43 Bb7 1:15 28.Qe5 4:07 Qa3 6:12 29.Qb8+ 7:03 Kg7 12
...Qf3 is the strong threat. 30.Qe5+ 8 Kg8 6 ...Qf3 would be deadly. 31.Qb8+ 5 Kg7 23 And now ...Qf3 would win. 32.Qe5+ 7 Kg8 1:02 Weighted Error Value: White=0.06 (flawless) /Black=0.05 (flawless)
½–½
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WhiteEloWBlackEloBResYearECOEventRnd
Krush,I2432Lee,A2362½–½2023American Cup Women Champions 20233.1
Lee,A2362Krush,I2432½–½2023American Cup Women Champions 20233.2
Lee,A2362Krush,I24320–12023American Cup Women Champions 20233.3
Krush,I2432Lee,A23621–02023American Cup Women Champions 20233.4
 

Alice Lee, Irina Krush

In action — Alice Lee and Irina Krush | Photo: Saint Louis Chess Club / Lennart Ootes

Paikidze 2 - 0 Tokhirjonova

Much like Krush, Paikidze scored back-to-back wins on Wednesday. In the second game against Tokhirjonova, the Georgian-American IM found a lethal pawn check after her rival blundered in a double-edged, open position.

 
Paikidze vs. Tokhirjonova - Rapid game #2

41...Ke7 fails to 42.d6+ with a discovered attack against the black queen. Paikidze found the pawn push and secured match victory.

 
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1.Nf3 35 f5 2 2.g3 11 Nf6 2 3.Bg2 6 g6 2 4.c4 7 Bg7 3 5.Nc3 2 0-0 1:06 6.0-0 32 d6 13 7.d3 2:13 e5 18 8.e3 1:11 Nc6 2:57 A21: English Opening: 1...e5 2 Nc3. 9.Rb1 4 a5 1:35 10.a3 1 Ne7 3 The position is equal. 11.b4 9 axb4 3 12.axb4 22 h6 1:49 13.b5 15 Be6 2:05 14.Nd2 2:08 c6 1:04 15.Qb3 1:09
15...Nd7N 1:17 Predecessor: 15...d5 16.Ba3 Re8 17.bxc6 bxc6 18.Bc5 Qa5 19.Bb4 Qc7 20.Bxe7 dxc4 21.Nxc4 Rxe7 22.Rfc1 Ra6 23.Ra1 Rxa1 24.Rxa1 Kh7 25.Ra6 Qd8 26.Qa3 Bd5 27.Ra8 ½-½ Satici,A (2449)-Pheby,I Pat Thorn mem corr 2000 16.Ba3 3:44 Nc5 1:01 17.Bxc5 41 dxc5 1 18.Na4 4 Qd6 41 19.Rfd1 1:18 Ra5 35 19...Rfd8= might be stronger. 20.bxc6 1:26 20.Qa3! 20...b5= 32 21.Nb2 3:35 21.Nc3 b4 22.Nd5 22.Nb5? Rxb5       Pin 23.Qa4 Rbb8-+ 22...Nxc6 21.Qxb5!= remains equal. Rfa8 22.Nb6 Rxb5 23.cxb5 21...b4 1:01 Black converts the advantage convincingly. 22.Ra1 10
Repels Ra3 22.d4 22...Rfa8! 19       22...Nxc6?! 23.Rxa5 Nxa5 24.Qa4= 23.Rxa5 2:02 Rxa5 1 24.d4 39 exd4 1:35 24...cxd4?! 25.exd4 exd4 26.c7= 24...Ra3 is interesting. 25.Qc2 exd4 26.exd4 Qxd4 27.Na4 Ra1 25.exd4 7
25...Ra3! 3:36 But not 25...Nxc6 26.Bxc6 Bxd4 27.Bg2± 25...Qxd4 26.Qd3 Ra2 27.Qe2 Worse is 25...cxd4 26.c7= 25...Bxd4 26.Qc2 Nxc6 27.Nb3 26.dxc5? 2:59
26.Qc2 Qxd4 27.Na4 26...Qxd2‼-+ 46       27.Rxd2 2:06 Rxb3 1 28.Nd1 35 Rb1 1:17 29.Bd5 31 Kf7 1:01 30.c7 16 30.Kg2 was called for. b3 31.Bxe6+ Kxe6 32.Rd6+ Kf7 33.c7 30...Be5 56 31.Kg2 44 Bxc7 21 32.Ne3 10 b3 52 33.Nd1 17 Ba5 34 34.Rd3 0 b2 51 35.c6 1 Bc7 35 36.f4 1 Rc1 30 37.Nxb2 38 Rc2+ 1 38.Kh3 6 Rxb2 9 39.Bxe6+ 6 Kxe6 1 40.Rd7 1 Ba5 44 40...g5 41.fxg5 hxg5 42.Rd4 Nxc6 43.Rh4 gxh4 44.Kxh4 Kf6 45.Kh3 Kg5 46.c5 Kh5 47.g4+ fxg4# 41.Ra7 13 Nxc6 6 Weighted Error Value: White=0.64/Black=0.16 (very precise)
0–1
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WhiteEloWBlackEloBResYearECOEventRnd
Tokhirjonova,G2332Paikidze,N23140–12023American Cup Women Elimination 20233.1
Paikidze,N2314Tokhirjonova,G23321–02023American Cup Women Elimination 20233.2
 

Nazi Paikidze, Gulrukhbegim Tokhirjonova

Nazi Paikidze knocked out Gulrukhbegim Tokhirjonova | Photo: Saint Louis Chess Club / Lennart Ootes

American Chess Cup 2023

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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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