15.d5!
An excellent positional idea of Bobby Fischer's. The point is to restrict the movement of the a5-knight.
Instead, the natural 15.Bb2?! Nc6 16.d5 Nb4 gave Black a good position in J.R.Capablanca-E.Bogoljubow, London 1922.
15...Nd7 16.Nbd2 Bf6 17.Rb1 Bc3 18.h3 Bxf3 19.Qxf3 b4 Rf1!
Boris: I placed the rook here because White prepares an attack on the kingside (Gulko).
The quieter 20.Rd1 was played by Bronstein against Smyslov at the Petropolis Interzonal 1973.

⚫️#636 (Strategy-Black to Move)
🔸Gorelov,S
🔸Gulko,B
🔸Minsk, 1985

18...Qe7!
Predicting that the white knight will want to return to e5, Black prevents it.
19.cxb6?! axb6 20.a5 bxa5 21.bxa5 Bd6!
Black is ready to release his position with ...c6-c5.

⚫️#637 (Strategy-Black to Move)
🔸Chesney,B
🔸Gulko,B
🔸Somerset, USA, 1986

Unity Chess Multiple Choice 637
public poll

C: Ne7 – 9
👍👍👍👍👍👍👍 75%
Morteza, @Hh758, Jonas, Nikhil, @Sophia_Peng, @RichardPeng, @AryanLeekha, Rachel, George

B: a5 – 3
👍👍 25%
Vincent, Joseph, Zhenrui

A: Rb8
▫️ 0%

👥 12 people voted so far.

⚪️#638 (Strategy-White to Move)
🔸Gulko,B
🔸Salov,V
🔸Reykjavik, 1991

Unity Chess Multiple Choice 638
public poll

B: Ne2 – 8
👍👍👍👍👍👍👍 67%
Raheleh, Jonas, Nikhil, Vincent, @Sophia_Peng, @AryanLeekha, George, Zhenrui

A: a3 – 3
👍👍👍 25%
Morteza, @RichardPeng, Rachel

C: Qa4 – 1
👍 8%
Joseph

👥 12 people voted so far.

Round 8 results and standings

#sinquefieldcup #grandchesstour

Rd 8 at Sinquefield Cup. All 5 games drawn by repetition (Mamedyarov-Carlsen went 58 moves). One more round to go. It will be Aronian-Grischuk, So-Caruana, Anand-Mamedyarov, Carlsen-Nakamura, and Karjakin - Vachier-Lagrave. Caruana leads with 5 out of 9. Four others with 4.5

Final round pairings! Do you think we will have a clear winner or play offs?

#SinquefieldCup #GrandChessTour

🔹 6th Sinquefield Cup 2018 - Round 8
🔹 PGN format

@UnityChess

🅾️#Harika_chess_quotes_002

💢 Harika Dronavalli
💢 Indian chess Grandmaster
. . . . . . . . . . . . .
@unitychess

🅾️#about_Harika_Dronavalli

💢 Harika Dronavalli
💢 Indian chess Grandmaster

🔰Harika Dronavalli is an Indian chess grandmaster She has won three bronze medals in the Women's World Chess Championship, in 2012, 2015 and 2017. Dronavalli was honored with the Arjuna Award for the year 2007–08 by the government of India.

🔘Full name: Dronavalli Harika
🔘Country: India
🔘Born: 12 January 1991 (age 27)
🔻Gorantla, Guntur, Andhra Pradesh, India
🔘Title: Grandmaster (2011)
🔘FIDE rating: 2494 (August 2018)
🔘Peak rating: 2543 (November 2016)

🔰WGM (2004) and GM (2011). Harika is a bright young talent from India. Her achievements include conquering the world titles of World Youth Champion in 2006 (Girls Under-18) and U-14 Girls Champion in 2004. In 2007 Harika became the Women's Commonwealth Chess Champion. She added another feather to her cap, by becoming Women's World Junior Champion in 2008.
In 2011, Harika won her 3rd GM norm when she came second in the 1st Hangzhou Women's GM Tournament (2011) to become India's second female grandmaster. In August 2012, she came =3rd at the Hogeschool Zeeland Chess Tournament 2012 with 7/9, half a point behind the joint leaders. She competed in the FIDE Knock-Out Women's World Championship (2012) and defeated Indian WGM Soumya Swaminathan, Armenian GM Elina Danielian, Georgian IM and WGM Lela Javakhishvili, and Chinese GM Zhao Xue to reach the semi finals. There she met and lost to former Women's World Champion, Bulgarian GM Antoaneta Stefanova to bow out of the contest.

♦️A memorable game by Harika Dronavalli👇
▪️Tatev Abrahamyan vs Dronavalli Harika
▪️FIDE Women's World Chess Championship (2015), Sochi RUS, rd 1, Mar-17
▪️French Defense: Tarrasch. Closed Variation (C05)

♦️Review and download PGN file👇
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@unitychess

💢 Tatev Abrahamyan - Dronavalli Harika, FWWChCh 2015. Sochi
💢 PGN format
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@unitychess

💢 Today is Elizbar Ubilava birthday
💢 Spanish chess grandmaster
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@unitychess

🔸15th Avicenna Cup A 2018
🔸Round 1
⚪️Mosadeghpour,Masoud (2525)
⚫️Hakemi,Arman (2245)
🔸1-0