Shtembuliak ends Praggnanandhaa's unbeaten streak

by Sagar Shah
10/19/2019 – Praggnanandhaa had an unbeaten streak of quite some games having won the under-18 gold at World Youth and playing some inspired chess in the first four rounds of the World Juniors. However, this came to an end at the hands of Ukrainian GM Evgeny Shtembuliak. Pragg sacrificed yet another exchange in the game, but it was not enough. Shtembuliak is now the sole leader with 4½/5, with three players following him on 4.0/5. In the girls section Mobina Alinasab (pictured, left) joined the leader Boldbaatar Altantuya at the top. Something from Iran to cheer amidst their player Aryan Gholami withdrawing from the event and Amin Tabatabaei facing Or Bronstein. In this report IM SAGAR SHAH brings you detailed analysis, photos and videos from New Delhi. | Photo: Niklesh Jain

The Art of the Positional Exchange Sacrifice The Art of the Positional Exchange Sacrifice

The positional exchange sacrifice is one of the most powerful and fascinating strategic weapons in chess. On this DVD Sergey Tiviakov explains why the positional exchange sacrifice is such a strong weapon and how to use it.

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Shtembuliak refutes Pragg's exchange sacrifice

Praggnanandhaa has been sacrificing exchanges at the World Junior, and quite successfully as well. In round five he tried it once again. But this time without success. His opponent Evgeny Shtembuliak made a lot of moves which were all about ensuring that his opponent doesn't get activity and he succeeded to outwit the young Indian talent.

The top board clash | Photo: Angela FJ

 

Shtembuliak played his knight to d4. Pragg now took the pawn on e5 with his knight, allowing a knight fork on e6, but after 15.e6 d6 16.xf8 xf8, Black has decent compensation.

 

A move that really surprised me was 21.h4. Why did Shtembuliak play a move like h4 when he had simpler ideas like 21.♗xc5 ♝xc5 and 22.♗d3 in hand. What is the reason to push the pawn and create light-squared weaknesses? Well, I have not been able to understand concretely why Evgeny did this, but the general idea could be to stop his opponent's pawn from coming to h4 and clamping his kingside pawns. Whatever was the logic behind this move, it worked really well in the game!

 

Praggnanandhaa made the not so useful move ♛g6-f5. The queen on f5 doesn't really do much to improve Black's position. Instead, the critical line, that should have been looked at is 21...c6 22.♗xc5 ♝xc5 22.♗d3 ♝xd3 23.♕xd3 ♛xd3 24.♖xd3 ♜e8:

 

What is the evaluation of this position? In my opinion, Black should be able to hold this endgame. He has no real weaknesses and his rook is all set to enter the position with ♜e2. This was Pragg's best chance to hold the game, but we can understand why the youngster didn't go for this — he has no chances to play for a win.

 

The way the things panned out in the game, Black was just lost as his d5 pawn was very weak and Shtembuliak showed great technique to win his game.

 

One thing that has been quite impressive about Evgeny Shtembuliak is his level-headed approach to the game. Often there is nothing flashy about his play, but he is consistent with his plans and approach, and he's extremely good at playing common sense chess! His conversion of winning positions is also quite good and this has helped him to take the sole lead in the event with 4½/5.

Evegeny Shtembuliak's classical rating graph

Within a year Evgeny has moved from being a 2470 player to a 2577 GM. "I would say our director and head coach of Texas Tech Chess Alexander Onischuk is guilty for this improvement!", says Shtembuliak. The shift from Ukraine to USA has truly worked out in favour of the youngster as he is showing unprecedented level of play in his games. His live rating is already 2590, and he would be aiming to breach the 2600 barrier in this event.

When 1868 rated Toshali beat 2507 rated Zhu Jiner!

Top seed Zhu Jiner is having quite a forgettable tournament | Photo: Niklesh Jain

There are days when your lower rated opponent plays quite well. At that point you have two options — take a draw, lose some rating points and say that it's part of the game. Or you can try to push hard hoping that your opponent will show why her rating is low, make a mistake and you will get your chance. While the second approach is preferred by many, there is a danger that lies in it — you may as well lose your game if your lower rated opponent keeps playing one good move after another! This is exactly what Toshali did against Zhu Jiner! She made no real mistake and before the Chinese girl could recover, she had already landed in an utterly lost position. There was a moment in the game when Toshali was clearly better, but was still repeating the moves. Zhu Jiner should have grabbed the half point there. She wanted more, but it was not meant to be! 

 

The move 9.e6 was an excellent pawn sacrifice by Toshali.

 

Boldbaatar maintains her lead by drawing her game with Bibisara | Photo: Angela FJ

Bibisara Assaubayeva was pushing right from the word go against overnight leader Boldbaatar Altantuya. The Kazakh player even won a pawn, but the Mongolian WFM didn't give up. The end result was a draw with Boldbaatar maintaining her lead with 4½/5.

Iran has been facing a tough time at the World Juniors 2019. Aryan Gholami forfeited his game against Israeli opponent Alexander Zlatin and subsequently withdrew from the tournament. The poor luck of the draw continues as in round six Amin Tabatabaei is paired against Or Bronstein. Another point will be lost for the Iranians. In all of this gloom, it is Mobina's performance that is providing the much-needed cheer for the Iranian fans. And Mobina has to currently keep performing well and keep a distance from her Israeli players, in terms of points, so that she is not paired with them.

 

Stavroula Tsolakidou talks about her fifth round win

Stavroula Tsolakidou suffered a tough loss in round two of the event to Mrudul Dehankar. Since then she has recovered herself quite well and with three back to back wins is now on 4.0/5. 

Sakshi Chitlange played a fine game with the black pieces in the Caro Kann to beat her higher rated opponent Mai Narva | Photo: Angela FJ

 

Polina Shuvalova played a 115 move marathon game to beat her compatriot Ekaterina Diakonova | Photo: Niklesh Jain

Vantika Agrawal, the World Youth under-18 Silver medalist, lost her game to Vaishali R | Photo: Niklesh Jain

On the second board Arpita Mukherjee drew her game against Rakshitta Ravi. They both moved to 4.0/5 | Photo: Angela FJ

In the game between two Nagpur girls, it was Divya who came out on top against Mrudul Dehankar | Photo: Niklesh Jain

Aram Hakobyan from Armenia managed to defeat his Spanish opponent Miguel Ruiz on the second board | Photo: Angela FJ

 

Miguel Ruiz's idea with the move 17...b5 is pretty clear. He would like to play his knight from b8-d7 and then to b6 to look at the c4 square. How should White counter this idea?

Aram went into the deep thinking mode and came up with a nice solution. He played the move 18.a4! here. Black would not like to take on a4, and so he cemented his structure with 18...c6. Now the b4 pawn is hanging.

 

What should White do now?

This is where the knowledge of classics comes in handy. Let me show you a famous position from the game between Karpov and Spassky from their Candidates semi-final in 1974. 

 

How did Karpov react against Spassky in this position? He played the powerful move 21.e4! This is the right reaction to Black's pawn structure and White went on to win the game in a few moves.

Coming back to Aram vs Miguel, this is exactly how the Armenian GM continued!

 

The move 19.e4! was what Hakobyan played. And tactically things worked, giving White a good advantage. The game was quite complex, but Aram navigated the terrain quite well and went on to win. 

Apart from showing his win, Aram also speaks about what makes him a good blitz player in this video

 

GM Iniyan found his touch in the event after scoring a fine win over Gonzorig Amartuvshin | Photo: Niklesh Jain

 

Iniyan explains the importance of intermediate moves

Harshit Raja had a very good position out of the opening against Karthikeyan Murali | Photo: Niklesh Jain

The Pune based IM, went wrong with the queen trade and subsequently was subjected to a passive endgame where he was systematically ground down by his experienced opponent.

 

Volodar Murzin — one of the biggest hopes of Russian chess

Volodar Murzin is just 13 years of age. He played a very nice endgame in round five against IM Neelash Saha. We invited him to the media room for an interview and the boy agreed. This was a great gesture on his part. Even though Murzin is not very fluent in English, it is a treat to see him analyse variations. We really are impressed with his endgame skills and after watching the video, we are sure you too will be of the same opinion.

Harsha Bharathakoti played a wonderful endgame to score a full point against Sankalp Gupta | Photo: Niklesh Jain

 

Leon Mendonca who is undefeated so far, drew with IM Semen Khanin | Photo: Niklesh Jain

A very interesting duel was played between Wang Shixu and Mihnea Costachi | Photo: Niklesh Jain

 

How should Black save the game?

 

Highlights of round 5

Open standings after round 5

 

Girls standings after round 5

 

All games

Open

 

Girls

 

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Sagar Shah is an International Master from India with two GM norms. He is also a chartered accountant. He loves to cover chess tournaments, as that helps him understand and improve at the game he loves so much. He and is the co-founder and CEO of ChessBase India website, the biggest news outlet in the country related to chess.
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