12...Qc8?! [Black missed a golden opportunity to temporarily trap the white rook on b7.]
[12...Nb6! 13.c5 dxc5 14.Qd3 Qc8 15.Qe4 e5 (15...c6 16.Qxe7 Nd5 17.Qd7 Qxd7 18.Rxd7 Nxc3³) 16.Qc6
a) 16.dxe5 c6 17.Re7 (17.Rxb6 axb6) 17...Nd5;
b) 16.dxc5 c6 17.Rxa7 Rxa7 18.cxb6 Rxa2³;
16...cxd4 17.cxd4 exd4 18.Re1 (18.Rxc7 Qa6µ) 18...Rd8 19.Rxc7 Qa6 20.Nf3 Qxa2³; 12...c5 13.Qd3 Qc8 14.Rb5 Nb6 15.Bg5 e5 16.Be7 Re8 17.Bxd6²]
13.Rb3 c5 14.Qd3 Nb6 15.e4 Qa6 16.Ra3? [16.Nf3 Qxc4 17.Qxc4 Nxc4 18.Rd1=]
16...Qxc4 17.Rd1 a5 18.Qb1 [18.Qxc4 Nxc4 19.Rb3³]
18...Qe2 19.Bg5 a4 20.Re1 Qa6 21.Bxe7 Rfc8 22.c4 [22.Bxd6 Nc4 23.Bxc5 Rxc5 24.dxc5 Nxa3–+]
22...Nxc4 23.Rd3 Rab8 24.Qc1 cxd4 25.Qf4 Qa5 26.Rdd1 Qe5 27.Bg5 f6 28.Qxe5 dxe5 29.Bc1 Bf8 30.f4 Nb2 0–1

⚫️#65 (Endgame-‌Black to Move)
🔸Gelfand,Boris (2703)
🔸Grandelius,Nils (2655)
🔸World Chess Olympiad 2018 Batumi

43...Kc8! [43...Rb3 44.Kf2 a3 45.Ke2 Kc8 46.Rh6 Rb2+ 47.Kd3 a2 48.Ra6 Kb7 49.Ra5 b4 50.Nxb4 Rxb4 51.Rxa2 Kc6 52.Rh2; 43...h5 44.Nb6+ Kd8 45.Nxa4=]

44.Rc6+ [44.Nb6+ Kb7–+]

44...Kb8 [44...Kb7 45.Rc7+ Ka6 46.Rc6+ Ka5 47.Rc8 b4 48.Rc5+ Ka6 49.Rc6+ Kb5–+]

45.Rc3 h5 46.Kf1 h4! 47.Rh3 Kb7 [47...Rb3!? 48.Rxh4 a3 49.Ke2 a2 50.Rh8+ Kb7 51.Rh7+ Kc6 52.Ra7 Kxd5 53.Rxa2 Rh3 54.Ra5 Kc4–+]

48.Ke1 Kc6 49.Nc3 [49.Ne7+ Kc5 50.Kd1 b4 51.Rxh4 a3 52.Kc1 Rf2³]

49...a3 50.Kd1 b4 51.Kc1 Rb3 52.Rxh4 Rxc3+ 53.Kb1 Kb5

0–1

⚫️#66 (Strategy-Black to Move)
🔸Kigigha,Bomo (2300)
🔸Delgado Ramirez,Neuris (2619)
🔸Olympiad 2018 Batumi

Unity Chess Strategy Multiple Choice 66
public poll

A)Nc8 – 5
👍👍👍👍👍👍👍 56%
Seyed Hossein Ali, Max, Kasra, @arash22_d, @ganikas_dnc

B)Qe8 – 2
👍👍👍 22%
@mahyarebrahimi1983, @A_Somewhat_Cool_Guy

C)Ng8 – 2
👍👍👍 22%
@Steve1234567890qwerty, Mahathi

👥 9 people voted so far.

⚫️#66 (Endgame-‌Black to Move)
🔸Martinovic,Sasa (2567)
🔸Bu,Xiangzhi (2712)
🔸World Chess Olympiad 2018 Batumi

Unity Chess Endgame Multiple Choice 66
public poll

C)h3 – 7
👍👍👍👍👍👍👍 54%
@rn1365, @mahyarebrahimi1983, @Steve1234567890qwerty, @jalilmoradi1995, @WataxPin, @arash22_d, @ganikas_dnc

A)Rc6 – 5
👍👍👍👍👍 38%
@Ach2016, Seyed Hossein Ali, Max, @A_Somewhat_Cool_Guy, Mahathi

B)Qg3 – 1
👍 8%
Kasra

👥 13 people voted so far.

♦️ Today is birthday of Michael Adams!!
English chess Grandmaster


❤️🌹💐☘️🌷🌺🌸❤️ Happy birthday !! 👏👏👏👏
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@unitychess

Women's World Championship 2018 (🔴LIVE ) 📺 https://www.youtube.com/watch?v=tbYy8QIioos

#Kotov

🔷 Alexander Kotov
🔹 Soviet Chess Grandmaster and Chess Author
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@unitychess

#about_Kotov

🔹 Alexander Kotov
🔹 Soviet Chess Grandmaster and Chess Author

🔰 Alexander Alexandrovich Kotov was a Soviet chess grandmaster and author. He was a Soviet chess champion, a two-time world title Candidate, and a prolific writer on the subject of chess. The importance and breadth of Kotov's work rank him among the all-time greats in this field.

🔰Kotov was born in Tula, which was part of the Russian Empire, to a large working class family. He moved to Moscow in 1939 to study engineering, and during this time studied chess a great deal.
While best remembered today as an author, Kotov also had a number of good results as a player. One of his best early results was his second-place finish in the 1939 USSR Championship, in which he just missed out to Mikhail Botvinnik in the final round. This result won him the Soviet Grandmaster title, the third Soviet player to hold the title after Botvinnik and Grigory Levenfish. Kotov was Moscow champion in 1941. He won the Soviet title jointly with David Bronstein in 1948, and won at Venice in 1950, ahead of Vasily Smyslov.

♦️ A memorable game by Kotov against Mikhail Botvinik in Groningen 1946 which named "Kotov Many Colors" in chessgames.com site!! 👇🏼
▪️ Mikhail Botvinnik vs Alexander Kotov
▪️ Groningen (1946), Groningen NED, rd 14, Aug-30
▪️ Nimzo-Indian Defense: Saemisch Variation. Accelerated (E24)

♦️ Review and download PGN file👇🏼
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@unitychess

▪️ Mikhail Botvinnik - Alexander Koto, Groningen (1946)
▪️PGN format

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@unitychess

A young Lev Polugaevsky, Twice USSR Champion (1967, 1968), International Grandmaster (1962), winner of numerous international tournaments, World Championship Candidate (1974, 1977, 1980).

@UnityChess

The Hague, 3rd July 1962. Netherlands v. USSR match, Round 1. On board 5, Mikhail Tal faces Haije Kramer; Tigran Petrosian looks on.

@UnityChess

The winners of the 2018 World Cadet Chess Championships.

http://bit.ly/2DJPuJM

@UnityChess