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+β; 44...Kd8 45.Nf8+β) ; 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+β) 47.Nf4 a4 48.d5 exd5 49.e6++β]
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+β]
53...Nxg5 54.Nxg6+ Kh7 55.Nf4 Kxh6 56.Nxd5 Kg6 57.Ne7+ [57.Ne7+ Kf7 58.Nc6+β] 1β0
[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+β; 44...Kd8 45.Nf8+β) ; 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+β) 47.Nf4 a4 48.d5 exd5 49.e6++β]
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+β]
53...Nxg5 54.Nxg6+ Kh7 55.Nf4 Kxh6 56.Nxd5 Kg6 57.Ne7+ [57.Ne7+ Kf7 58.Nc6+β] 1β0
Unity Chess Strategy Multiple Choice 10
public poll
A: 19.Bb5 β 6
πππππππ 50%
Jayden, @RichardPeng, @mikeyshaw, Michael, Zhenrui, Alan
B: 19.g5 β 4
πππππ 33%
@TakTakin, Nikhil, @Sophia_Peng, Matthew
C: 19.Bc4 β 2
ππ 17%
@Hamed_85, @mahyarebrahimi1983
π₯ 12 people voted so far.
public poll
A: 19.Bb5 β 6
πππππππ 50%
Jayden, @RichardPeng, @mikeyshaw, Michael, Zhenrui, Alan
B: 19.g5 β 4
πππππ 33%
@TakTakin, Nikhil, @Sophia_Peng, Matthew
C: 19.Bc4 β 2
ππ 17%
@Hamed_85, @mahyarebrahimi1983
π₯ 12 people voted so far.
Unity Chess Endgame Multiple Choice 10
public poll
C: Rd7 β 12
πππππππ 75%
@TakTakin, @mahyarebrahimi1983, Jonas, Amin, Nikhil, @Alalalalaalaalala, Blue, @Sophia_Peng, vivek, Michael, Zhenrui, Alan
A:Rd2 β 2
π 13%
@RichardPeng, Matthew
B: Kf3 β 2
π 13%
Jayden, @roshan_sethuraman
π₯ 16 people voted so far.
public poll
C: Rd7 β 12
πππππππ 75%
@TakTakin, @mahyarebrahimi1983, Jonas, Amin, Nikhil, @Alalalalaalaalala, Blue, @Sophia_Peng, vivek, Michael, Zhenrui, Alan
A:Rd2 β 2
π 13%
@RichardPeng, Matthew
B: Kf3 β 2
π 13%
Jayden, @roshan_sethuraman
π₯ 16 people voted so far.
Congratulations to Levon Aronian! πππ
He scores his second impressive #speedchess win, pulling away in the 3|1 blitz control!
He scores his second impressive #speedchess win, pulling away in the 3|1 blitz control!
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Checkmate on the board! And that after a mere 18 moves. Trickster Levon Aronian indahouse! #SpeedChess
π Today is birthday of Mariya Muzychuk !!
Ukrainian chess grandmaster
ππ·πΊπΈπΈβ€οΈ Happy birthday!! ππππ
. . . . . . . . . . . . .
@unitychess
Ukrainian chess grandmaster
ππ·πΊπΈπΈβ€οΈ Happy birthday!! ππππ
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@unitychess
UNITY CHESS INFOGRAPHIC
βοΈ Chess History - Tournaments
π° Gothenburg Interzonal (1955)
#chess_history_tornaments
#Gothenburg_1955
. . . . . . . . . . . . .
@unitychess
βοΈ Chess History - Tournaments
π° Gothenburg Interzonal (1955)
#chess_history_tornaments
#Gothenburg_1955
. . . . . . . . . . . . .
@unitychess
β³οΈβ³οΈβ³οΈβ³οΈ
β Chess History - Tournaments
π Gothenburg Interzonal (1955) , Sweden
π 2β20 September, 1929
β»οΈ CHAMPION: David Bronstein | 15/20 (+10 -0 =10)
βͺοΈ 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.
βͺοΈ Of particular theoretical note is that the 14th round saw three unsuccessful tries of the novelty 9 ... g5 10. fxg5 βd7 by players from Argentina when three Soviets tested their sacrifices in the move-order
1. e4 c5 2. βf3 d6 3. d4 cxd4 4. βxd4 βf6 5. βc3 a6 6. βg5 e6 7. f4 βe7 8. βf3 h6 9. βh4,
so the so-called Vespers - (Argentine or GΓΆteborg) variation - with the main continuation being 11. βxe6 (11. 0-0-0 saw the game Rodolfo Cardoso vs Fischer, 1957 0-1) 11 ... fxe6 12. βh5 βf8 13. βb5 - and remained under a cloud for more than 2 years, until Paul Keres suggested the improvement 13 ... βh7 which was later played in Gligoric vs Fischer, 1958 1/2-1/2 and resurrected that Sicilian, Najdorf (B98) line.
πΉ The final standings and crosstable was as aboveπ
πΉ Download "Gothenburg Interzonal 1955 Games Database" by PGN formatπ
#chess_history_tornaments
#Gothenburg_1955
. . . . . . . . . . . . .
@unitychess
β Chess History - Tournaments
π Gothenburg Interzonal (1955) , Sweden
π 2β20 September, 1929
β»οΈ CHAMPION: David Bronstein | 15/20 (+10 -0 =10)
βͺοΈ 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.
βͺοΈ Of particular theoretical note is that the 14th round saw three unsuccessful tries of the novelty 9 ... g5 10. fxg5 βd7 by players from Argentina when three Soviets tested their sacrifices in the move-order
1. e4 c5 2. βf3 d6 3. d4 cxd4 4. βxd4 βf6 5. βc3 a6 6. βg5 e6 7. f4 βe7 8. βf3 h6 9. βh4,
so the so-called Vespers - (Argentine or GΓΆteborg) variation - with the main continuation being 11. βxe6 (11. 0-0-0 saw the game Rodolfo Cardoso vs Fischer, 1957 0-1) 11 ... fxe6 12. βh5 βf8 13. βb5 - and remained under a cloud for more than 2 years, until Paul Keres suggested the improvement 13 ... βh7 which was later played in Gligoric vs Fischer, 1958 1/2-1/2 and resurrected that Sicilian, Najdorf (B98) line.
πΉ The final standings and crosstable was as aboveπ
πΉ Download "Gothenburg Interzonal 1955 Games Database" by PGN formatπ
#chess_history_tornaments
#Gothenburg_1955
. . . . . . . . . . . . .
@unitychess
β¦οΈ Review one of the theoretical novelty games in Najdorf of Sicilian on Gothenburg Interzonal 1955π
β¦οΈ Other two games by PGN format are in tournament database.
πππ
πΈ Boris Spassky vs Herman Pilnik
πΈ Gothenburg Interzonal (1955), Gothenburg SWE, rd 14, Sep-07
πΈ Sicilian Defense: Najdorf Variation. Goteborg (Argentine) (B98)
. . . . . . . . . . . . .
@unitychess
β¦οΈ Other two games by PGN format are in tournament database.
πππ
πΈ Boris Spassky vs Herman Pilnik
πΈ Gothenburg Interzonal (1955), Gothenburg SWE, rd 14, Sep-07
πΈ Sicilian Defense: Najdorf Variation. Goteborg (Argentine) (B98)
. . . . . . . . . . . . .
@unitychess