World Champion Alexander Alekhine and Challenger Efim Bogoljubow, pictured in Wiesbaden (Germany) during their 1929 title match.

@UnityChess

"If a defender finds the best possible moves he can put up virtually infinite resistance."

🔸 Bill Jordan

@UnityChess

I hope we can agree that Botvinnik was a chess prodigy.
He became a Soviet Master at age of 16 that would equal a FIDE master in these days.
He first became famous when he defeated Capablanca at a simul in 1920s.
He is also the 3th oldest world champion in history.

@UnityChess

San Remo, 1930 - Alexander Alekhine (right) is pictured with the president of the local chess club, A. Stuparich, in front of the Hotel Excelsior.

@UnityChess

⚪️#226 (Strategy-White to Move)
🔸Abdulov,Or (2398)
🔸Eynullayev,Altay (2180)
🔸Baku Open 2018

24.Bh3?! [In order to obtain a slight advantage, White should have simply exchanged the light-squared bishops: 24.Bxb7! Qxb7 25.Qh3 Rc8 26.Qg2 Qxg2+ 27.Kxg2 Rc5²; 24.Ne2 Bxg2 25.Rxg2 Re6 26.Qh5 Qc8 27.Rf4 Qc5+ 28.Rgf2 Re4 29.Nd4 Rxf4 30.Bxf4 Bxd4 31.cxd4 Qxd4 32.Bxh6 Rc8 33.Qg5+ Kh7 34.Qxe7 Kxh6 35.Qxf7 Rc1+ 36.Kg2 Qe4+ 37.Kh3 Qg4+=]

24...Qc7 [24...Re8 25.Nxf5? Nxf5 26.Qh5 Qc7 27.Bg2 Bxg2 28.Kxg2 Re5 29.Rxf5 Qc4 30.g4 Qd5+–+]

25.Qh5 [25.Bg2 Bxg2 26.Kxg2 Qb7+ 27.Kg1+/=]

1–0

⚫️#226 (Endgame-Black to Move)
🔸Salem,AR (2660)
🔸Bellahcene,B (2516)
🔸Emirates ch-Arab 2018

37...f6! [37...b6?! 38.Kf1 f6 39.h4 Kf7 40.Rd3 Ke6 41.Ke2 Rxd6 42.Rg3 Kf5 43.Rb3 Ke5 44.Re3+ Kd5 45.Kd3 Re6 46.Rg3 f5 47.Kc3 Ke5µ; 37...Kf8?! 38.f4 b6 39.Kf2 Ke8 40.Ke3 f6 41.Kd4 Kf7 42.g4 Rd8 43.f5 gxf5 44.gxf5 Ke8 45.Kc4 Kd7 46.Kb5 Rh8 47.Kxb6 Rxh3=]

38.h4 Kf7 39.Rd3 Ke6 40.Rg3 b5 41.Rxg6 Kxd6 42.h5 b4 43.h6 gxh6 44.Rxf6+ Kc5 45.Rf8 b3–+

0–1

⚪️#227 (Strategy-White to Move)
🔸Tsydypov,Z (2530)
🔸Popov,Iv RUS (2590)
🔸Baku Open 2018

Unity Chess Strategy Multiple Choice 227
public poll

B) Rca1 – 9
👍👍👍👍👍👍👍 75%
Jonas, زهره, Nikhil, Majid, @Steve1234567890qwerty, @A_Wild_Richard, Atharva, Ali, Kasyap

A) Ng5 – 2
👍👍 17%
Meisam, @Sophia_Giraffe

C) Bg5 – 1
👍 8%
@Omid_kh7225

👥 12 people voted so far.

⚪️#227 (Endgame-White to Move)
🔸Sultan,I (2140)
🔸Ali,Abdulaziz (1967)
🔸Emirates ch-Arab 2018

Unity Chess Endgame Multiple Choice 227
public poll

B) Kd4 – 8
👍👍👍👍👍👍👍 62%
Jonas, زهره, @Steve1234567890qwerty, @MerissaWongso, @A_Wild_Richard, Atharva, Ali, Kasyap

A) Kc4 – 4
👍👍👍👍 31%
Meisam, Nikhil, Majid, @mnosrati96

C) a4 – 1
👍 8%
@Sophia_Giraffe

👥 13 people voted so far.

🔸Bundesliga 2018–19
🔸Round 4
⚪️Naiditsch,A (2736)
⚫️Baldauf,Marc (2470)
🔸1-0

17.Bb4! [The bishop is placed on an important diagonal and in the case of exchange it, White's queenside pawn structure would be improved.]

17...0–0–0 [¹17...Nxb4 18.axb4! Rd8 19.Qf3 △Qf6 19...Rg8 20.Qf6 h5 21.Red1!+– △Bh7]

18.Bd6!‚ Qa5 19.Qf3 Rdg8 20.Be4 [20.Qxf7!? would also be interesting: 20...Nd8 21.Qf6 Qd2 22.c5 g4 23.Re4!+– △R×d4]

20...g4 21.Qxf7+–

1–0