10. a5 {A highly committal move. White wins space on the queenside and the tempi spent on advancing the a-pawn will be retrieved thanks to the relatively unsafe situation of the bishop. At the same time, Black is deprived of the freeing move ...Na5 forever. On the other hand, Black no longer has worries on the queenside and he can even hope that at some point the a5-pawn will become weak.} Ba7 ({Accepting the sacrifice with the king uncastled is dangerous.} 10... Nxa5 11. Rxa5 Bxa5 12. dxe5 Ng4 13. Bg5 f6 14. exf6 gxf6 15. Bh4 c5 16. h3 h5 17. Nbd2 {Simply developing. Black's position is a complete mess despite his big material advantage.})

10...Ba7 11.h3 Bb7 12.Be3 Ra8? 13.d×e5 B×e3? 14.e×f6 Bh6 15.f×g7 Bh6 16.f×g7 B×g7 16.Bd5 +/-

⚫️#593 (Strategy-Black to Move)
🔸Giddins,S
🔸Emms,J
🔸Isle of Man, 1999

19...Bf8!
Black correctly intends to play ...c5.
20.a3
20.Rc1! Qxa2.
20...c5 21.dxc5 Rxc5 22.Rxc5 Qxc5 23.Qxc5 Bxc5=/+
the desired effect of opening up the position for the bishops had also been achieved.

⚪️#594 (Strategy-White to Move)
🔸Fischer,R
🔸Spassky,B
🔸Belgrade (1st matchgame), 1992

It's not surprising that with White's pieces offside, Black gained some counterplay, but White was able to regroup in order to gain the full point:
22.Ra3! Ndf6 23.Rea1 Qd7 24.R1a2 Rfc8 25.Qc1 Bf8 26.Qa1 Qe8 27.Nf1! Be7 28.N1d2
28.N3d2!? Kg7 29.f3+/-
28... Kg7 29.Nb1! +/-

⚫️#595 (Strategy-Black to Move)
🔸Norris,A
🔸Gormally,D
🔸Oakham, 2000

Unity Chess Multiple Choice 595
public poll

C: Qh5 – 7
👍👍👍👍👍👍👍 58%
@mhmdaqa, Maryam Darabi, Nikhil, Ramesh, Vincent, @Sophia_Peng, @RichardPeng

A: Q×a2 – 3
👍👍👍 25%
@SteveWongso, George, Zhenrui

B: Qd6 – 2
👍👍 17%
@moghaddam_chess, مجید

👥 12 people voted so far.

⚫️#596 (Strategy-Black to Move)
🔸Rowson,J
🔸Adams,M
🔸London (match), 1998

Unity Chess Multiple Choice 596
public poll

C: f4 – 10
👍👍👍👍👍👍👍 71%
@Chess_MT, @moghaddam_chess, Nikhil, Ramesh, Jahanbakhsh, @SteveWongso, Vincent, @Sophia_Peng, George, Zhenrui

A: b6 – 3
👍👍 21%
España 🇪🇸, @mhmdaqa, مجید

B: Bg5 – 1
👍 7%
@RichardPeng

👥 14 people voted so far.

At the Women's World Championship (Borjomi/Tbilisi), 7th September 1981. In the centre, Nana Alexandria; on the left, her principal second*, Mark Dvoretsky.

@UnityChess

Alekhine vs. Euwe, 1935.

@UnityChess

This month Chess Notes is showing many items of correspondence between Capablanca and Prokofiev.
http://www.chesshistory.com/winter/index.html

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Soviet grandmaster, twice challenger for the Women's World Championship, Nana Alexandria.

@UnityChess

“Whenever Black succeeds in assuming the initiative and maintaining it to a successful conclusion, the sporting spirit of the chess lover feels gratified, because it shows that the resources of the game are far from being exhausted.”

🔸 Savielly Tartakower

@UnityChess

Madras, 1987 Vishy Anand with former Women's World Championship contender, Nana Alexandria.

@UnityChess

🌐#Averbakh_chess_quotes_002

🔹Yuri Averbakh
🔹Soviet and Russian chess Grandmaster
🔹Chess Author

@unitychess

🌐#about_Averbakh

🔹Yuri Averbakh
🔹Soviet and Russian chess Grandmaster
🔹Chess Author

🔰 Yuri Lvovich Averbakh is a Soviet and Russian chess player and author. As of 2018, he is the oldest living chess grandmaster. He was born in Kaluga, Russia. He was chairman of the USSR Chess Federation from 1973 to 1978.

🔘Full name: Yuri Lvovich Averbakh
🔘Country: Russia
🔘Born: February 8, 1922 (age 96)
🔘Kaluga, Russian SFSR
🔘Title: Grandmaster
🔘FIDE rating: 2445 (August 2018)
🔘Peak rating: 2550 (July 1971)

🔰Averbakh was born in Russia in 1922. As a boy he saw Emanuel Lasker play, and he went on to be an eyewitness to almost the entire rise and fall of the famed Soviet School of Chess. Although overshadowed by some of his better-known contemporaries he was a talented player who won the formidable USSR Championship in 1954 and tied for first place with Mark Taimanov and Boris Spassky two years later (Taimanov won the playoff). A noted chess journalist, author and arbiter, he’s now focussed on the history of chess and other board games, where the range of his erudition is dazzling.

🔰Averbakh is also a major endgame study theorist. He has published more than 100 studies, many of which have made notable contributions to endgame theory. In 1956 he was given by FIDE the title of International Judge of Chess Compositions and in 1969 he became an International Arbiter.

🔰Averbakh edited the Soviet chess periodicals Shakhmaty v SSSR and Shakhmatny Bulletin. From 1956 to 1962 he edited (with Vitaly Chekhover and others) a four-volume anthology on the endgame, Shakhmatnye okonchaniya (revised in 1980-84 and translated as Comprehensive Chess Endings, five volumes).

♦️ A memorable game by Averbakh👇
🔸Paul Keres vs Yuri Averbakh
🔸Zurich Candidates (1953), Zurich SUI, rd 2, Aug-31
🔸Nimzo-Indian Defense: Normal Variation. Bernstein Defense (E58)

♦️Review and download PGN file👇

@unitychess