☑️ Chess History - Tournaments
🔘Amsterdam Interzonal 1964
▪️ This qualification tournament for the 1965 Candidates matches was held May 20th- June 21th in the building of the GAK (Social Security Organization) in Amsterdam. The purpose was to select a challenger for Tigran Vartanovich Petrosian, the World Champion.
The first six finishers would qualify, with the restriction that only three players from the Soviet Union could advance.
Two players were already seeded into the Candidates matches (and did not have to participate): Mikhail Botvinnik (as the loser of the Petrosian - Botvinnik World Championship Match (1963) and Paul Keres (as the winner of the Keres - Geller 2nd place Candidates Playoff (1962) that followed after the Curacao Candidates (1962). Botvinnik later (in March 1965) withdrew from the cycle so that Efim Geller who had failed to qualify in the USSR Zonal (1964) and therefore did not play in the Interzonal went to the Candidates matches after all (by virtue of his placement in Curacao).
▪️ All five participants from the Soviet Union finished in the top six, so the fifth and sixth-place finishers (Stein and Bronstein) were excluded as qualifiers, with Ivkov advancing instead and, after a playoff with Reshevsky, Portisch. The American champion Robert James Fischer chose not to play.
♦️ Download Amsterdam 1964 games database by PGN format👇👇
@unitychess
🔘Amsterdam Interzonal 1964
▪️ This qualification tournament for the 1965 Candidates matches was held May 20th- June 21th in the building of the GAK (Social Security Organization) in Amsterdam. The purpose was to select a challenger for Tigran Vartanovich Petrosian, the World Champion.
The first six finishers would qualify, with the restriction that only three players from the Soviet Union could advance.
Two players were already seeded into the Candidates matches (and did not have to participate): Mikhail Botvinnik (as the loser of the Petrosian - Botvinnik World Championship Match (1963) and Paul Keres (as the winner of the Keres - Geller 2nd place Candidates Playoff (1962) that followed after the Curacao Candidates (1962). Botvinnik later (in March 1965) withdrew from the cycle so that Efim Geller who had failed to qualify in the USSR Zonal (1964) and therefore did not play in the Interzonal went to the Candidates matches after all (by virtue of his placement in Curacao).
▪️ All five participants from the Soviet Union finished in the top six, so the fifth and sixth-place finishers (Stein and Bronstein) were excluded as qualifiers, with Ivkov advancing instead and, after a playoff with Reshevsky, Portisch. The American champion Robert James Fischer chose not to play.
♦️ Download Amsterdam 1964 games database by PGN format👇👇
@unitychess
48.Rf2??
A blunder. 48.Qf7+ Q×f7 49.e×f7= was necessary.
48...R×h2+! 0-1
If
A) 49.K×h2 9....Qh4#
B) 49.R×h2 Qf3+ 50.Rg2 Q×g2#
A blunder. 48.Qf7+ Q×f7 49.e×f7= was necessary.
48...R×h2+! 0-1
If
A) 49.K×h2 9....Qh4#
B) 49.R×h2 Qf3+ 50.Rg2 Q×g2#
47...Rh3??
A big mistake in an inferior position. Anand should have kept his rook on the sixth rank.
48.Kd6 Rc3 49.a6 Ka8 50.Rc7 Kb8 51.R×c6 1-0
A big mistake in an inferior position. Anand should have kept his rook on the sixth rank.
48.Kd6 Rc3 49.a6 Ka8 50.Rc7 Kb8 51.R×c6 1-0
29.Ra7??
Too greedy!
Better is 29...R×d6 30.B×a4 Rd4 =
30.Rc1! Nb6 31.R×c8! N×c8 32.d7 R×d7 33.B×d7 Nb6 34.B×e6 + Kf8 35.Bb3 +-
Too greedy!
Better is 29...R×d6 30.B×a4 Rd4 =
30.Rc1! Nb6 31.R×c8! N×c8 32.d7 R×d7 33.B×d7 Nb6 34.B×e6 + Kf8 35.Bb3 +-
31.Qe1?
More resistance could have been put up with 31.Qg4!
31...f3 32.R1c3 Rf8 33.Qf1 Qg6 34.Kh2 Qg4 35.R×c7 Q×h4+ 36.Kg1 Re5 0-1
More resistance could have been put up with 31.Qg4!
31...f3 32.R1c3 Rf8 33.Qf1 Qg6 34.Kh2 Qg4 35.R×c7 Q×h4+ 36.Kg1 Re5 0-1
12...Qd6!
This is the key move. Rather than open up the game, Black does best to keep the position closed and strengthen his grip on the dark squares. As Black can easily complete his queenside development against quiet moves, White now decides to force exchanges on the queenside, hoping that the resulting open play will offer opportunities for his bishop-pair.
13.Nb5 Qb4+ 14.Qxb4 axb4.
This is the key move. Rather than open up the game, Black does best to keep the position closed and strengthen his grip on the dark squares. As Black can easily complete his queenside development against quiet moves, White now decides to force exchanges on the queenside, hoping that the resulting open play will offer opportunities for his bishop-pair.
13.Nb5 Qb4+ 14.Qxb4 axb4.
13.h4!
White severely punishes Black for taking the pressure off his pawn on e5. Smyslov not only has ample time to improve his game by advancing his passed h-pawn, but also to clamp down hard on the central dark squares with his next move.
13...Bd7 14.Bg5 Rc8 15.Nd4!
But this subtle move completely frustrates Black.
White severely punishes Black for taking the pressure off his pawn on e5. Smyslov not only has ample time to improve his game by advancing his passed h-pawn, but also to clamp down hard on the central dark squares with his next move.
13...Bd7 14.Bg5 Rc8 15.Nd4!
But this subtle move completely frustrates Black.
Unity Chess Multiple Choice 511
public poll
B: Bh3 – 6
👍👍👍👍👍👍👍 75%
@Ismailaqa, Kavian, @Shadowoffhollow, Bryson, @Sophia_Peng, @AryanLeekha
C: Nc6 – 2
👍👍 25%
@MerissaWongso, @RichardPeng
A: f4
▫️ 0%
👥 8 people voted so far.
public poll
B: Bh3 – 6
👍👍👍👍👍👍👍 75%
@Ismailaqa, Kavian, @Shadowoffhollow, Bryson, @Sophia_Peng, @AryanLeekha
C: Nc6 – 2
👍👍 25%
@MerissaWongso, @RichardPeng
A: f4
▫️ 0%
👥 8 people voted so far.
Unity Chess Multiple Choice 512
public poll
C: Ra5 – 3
👍👍👍👍👍👍👍 60%
@MerissaWongso, @RichardPeng, Zhenrui
A: Ra6 – 1
👍👍 20%
Bryson
B: N×e5 – 1
👍👍 20%
@Sophia_Peng
👥 5 people voted so far.
public poll
C: Ra5 – 3
👍👍👍👍👍👍👍 60%
@MerissaWongso, @RichardPeng, Zhenrui
A: Ra6 – 1
👍👍 20%
Bryson
B: N×e5 – 1
👍👍 20%
@Sophia_Peng
👥 5 people voted so far.