1.e4 c5 2. Ne2 Nf6 3. Nbc3 d5 4. exd5 Nxd5 5. g3 b6 6. Bg2 Bb7 7. Ne4 Qd7 8.O-O e6 9. c4 Nf6 10. Nxf6+ gxf6 11. d4 Bxg2 12. Kxg2 Nc6 13. d5 exd5 14. cxd5 O-O-O 15. Nc3 Nb4 16. Qh5 Bd6 17. Rd1 Be5 18. a3 Nc2 19.Ra2 Nd4 20.Bh6
20.b4!
A multi-purpose move: 1- opening a file on the enemy king. 2- activating his rooks. 3- weakening the opponent's knight position.
20...Kb7 21.f4 Bc7 22. Be3 Qf5 23. Qxf5 Nxf5 24. Bf2 cxb4 25. axb4 Rhe8 26. Kf3 Nd6 27. Bd4+/=
20. f4! A proper move that forces the bishop to retreat. 20...Bd6 21. Be3 Qf5 22. Qxf5+ Nxf5 23. Bf2 Kb7 24. Kf3 Be7 25. b3 Nd6 26. Re1 Rhe8 27.Rae2+/=
20. Be3!? Qf5 21. Qxf5+ Nxf5 22. Ne4 Rd7 = Black does not seem to be facing some serious problems.
20... Nf5 21. Raa1 Nxh6 22. Qxh6 Qf5 23. Rac1 Kb8 24. Qh3 Qg6 25. Qh4 h5 26. b4 cxb4 27. axb4 Qg4 28.Qxg4 hxg4 29. Ne2 Kb7 30. Rc4 f5 31. b5 Rd7 32. Nf4 Rhd8 33. Re1 f6 34. Ne6 Rh8 35. Rd1 Rdh7 36. Rh1 Rd7 37.Rd1 Rdh7 38. Rh1 Rd7
1/2-1/2

⚫️#9 (Endgame-Black to Move)
🔸Macovei,Andrei (2385)
🔸Garidmagnai,Byambasuren (2287)
🔸57th World Juniors 2018

41...Nb5?? [Black is aiming to attack the opponent's queenside pawn instead of defending his own kingside pawns. But the game will demonstrate that the White's threats are more dangerous.]

[41...Kf7!= Black should hold his own. 42.Ng4 Kg8 43.Nf6+ Kh8 44.Nd7 Kg8 45.Nc5 Kf7 46.Nb7 Nc6 47.Nc5=; 41...Nc6?? 42.Ng4 Nd8 43.Nf6 Nf7 44.Nxh7 Nh8 (44...Ke8 45.Nf6+ Kf8 46.Kf4+–; 44...Kd8 45.Nf8+–) ; 41...Kf8=]

42.Ng4 Nc3 43.Nf6 Kf7 44.Nxh7 Nxa2 45.Kd2!? [45.Nf6 Nc1 46.Nxd5! Nxb3 (46...exd5 47.h7 Kg7 48.e6+–) 47.Nf4 a4 48.d5 exd5 49.e6++–]

45...Kg8 46.Nf6+ Kh8 47.Nd7 Nc3 48.Nc5 Kg8 49.Nxe6 Ne4+ 50.Kd3 Nf2+ 51.Ke2 Ne4 52.Ke3 Kh8 [52...a4 53.bxa4 b3 54.Kd3]

53.Nf8 [53.Nc5 Nxg5 54.Kf4 Nf7 55.e6 g5+ 56.Kf3 Nd6 57.Kg4 Kh7 58.Kxg5+–]

53...Nxg5 54.Nxg6+ Kh7 55.Nf4 Kxh6 56.Nxd5 Kg6 57.Ne7+ [57.Ne7+ Kf7 58.Nc6+–] 1–0

⚪️#10 (Strategy-White to Move)
🔸Hakobyan,Aram (2554)
🔸Petrosyan,Manuel (2581)
🔸57th World Juniors 2018

Unity Chess Strategy Multiple Choice 10
public poll

A: 19.Bb5 – 6
👍👍👍👍👍👍👍 50%
Jayden, @RichardPeng, @mikeyshaw, Michael, Zhenrui, Alan

B: 19.g5 – 4
👍👍👍👍👍 33%
@TakTakin, Nikhil, @Sophia_Peng, Matthew

C: 19.Bc4 – 2
👍👍 17%
@Hamed_85, @mahyarebrahimi1983

👥 12 people voted so far.

⚪️#10 (Endgame-White to Move)
🔸Ozsakallioglu,Okan (1955)
🔸Baenziger,Fabian (2360)
🔸57th World Juniors 2018

Unity Chess Endgame Multiple Choice 10
public poll

C: Rd7 – 12
👍👍👍👍👍👍👍 75%
@TakTakin, @mahyarebrahimi1983, Jonas, Amin, Nikhil, @Alalalalaalaalala, Blue, @Sophia_Peng, vivek, Michael, Zhenrui, Alan

A:Rd2 – 2
👍 13%
@RichardPeng, Matthew

B: Kf3 – 2
👍 13%
Jayden, @roshan_sethuraman

👥 16 people voted so far.

Congratulations to Levon Aronian! 🎊👏🎊

He scores his second impressive #speedchess win, pulling away in the 3|1 blitz control!

Levon Aronian's next challenge is playing the victor between GM Hikaru Nakamura and Vachier Lagrave. Either way it is sure to be an exciting match! 😁

Congratulations to Shakhriyar Mamedyarov on becoming a father!

The 2018 Russian Olympic team with President Vladimir Putin!

#BatumiChess2018

A masterpiece by Levon Aronian!

#speedchess #CHECKMATE

Checkmate on the board! And that after a mere 18 moves. Trickster Levon Aronian indahouse! #SpeedChess

🔹 chess.com Speed 2018
🔹 PGN format

@UnityChess

💟 Today is birthday of Mariya Muzychuk !!
Ukrainian chess grandmaster

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

UNITY CHESS INFOGRAPHIC

❇️ Chess History - Tournaments
🔰 Gothenburg Interzonal (1955)

#chess_history_tornaments
#Gothenburg_1955
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@unitychess

✳️✳️✳️✳️

✅ Chess History - Tournaments
🍀 Gothenburg Interzonal (1955) , Sweden
🍀 2–20 September, 1929
♻️ CHAMPION: David Bronstein | 15/20 (+10 -0 =10)


▪️ The Gothenburg interzonal tournament was played between 15th August and 21st September 1955. It was a 21-player round robin, with the top nine players qualifying for the Amsterdam Candidates (1956) tournament. The winner was Bronstein with 15/20 (+10 =10 -0), Keres was second with 13.5, Panno had 13, Petrosian 12.5, Geller and Szabo each had 12 and the other qualifiers were Filip, Pilnik and Spassky with 11. Just missing out with 10.5 were Ilivitsky and Pachman.

▪️ Of particular theoretical note is that the 14th round saw three unsuccessful tries of the novelty 9 ... g5 10. fxg5 ♘d7 by players from Argentina when three Soviets tested their sacrifices in the move-order
1. e4 c5 2. ♘f3 d6 3. d4 cxd4 4. ♘xd4 ♘f6 5. ♘c3 a6 6. ♗g5 e6 7. f4 ♗e7 8. ♕f3 h6 9. ♗h4,
so the so-called Vespers - (Argentine or Göteborg) variation - with the main continuation being 11. ♘xe6 (11. 0-0-0 saw the game Rodolfo Cardoso vs Fischer, 1957 0-1) 11 ... fxe6 12. ♕h5 ♔f8 13. ♗b5 - and remained under a cloud for more than 2 years, until Paul Keres suggested the improvement 13 ... ♖h7 which was later played in Gligoric vs Fischer, 1958 1/2-1/2 and resurrected that Sicilian, Najdorf (B98) line.

🔹 The final standings and crosstable was as above👆
🔹 Download "Gothenburg Interzonal 1955 Games Database" by PGN format👇

#chess_history_tornaments
#Gothenburg_1955
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@unitychess

❇️ Gothenburg Interzonal 1955 Games Database
PGN format
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@unitychess

♦️ Review one of the theoretical novelty games in Najdorf of Sicilian on Gothenburg Interzonal 1955👇
♦️ Other two games by PGN format are in tournament database.
👇👇👇
🔸 Boris Spassky vs Herman Pilnik
🔸 Gothenburg Interzonal (1955), Gothenburg SWE, rd 14, Sep-07
🔸 Sicilian Defense: Najdorf Variation. Goteborg (Argentine) (B98)
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@unitychess