Bamberg 1968, Round 5: Keres takes the sole lead

by Klaus Besenthal
6/27/2020 – In the 5th round of the International Jubilee Tournament in Bamberg, Paul Keres took the sole lead with a victory over the Austrian Andreas Dückstein — the Estonian has collected 4 points so far. World Champion Tigran Petrosian from the Soviet Union and Borislav Ivkov from Yugoslavia, who had previously been level with Keres, drew their games and are now sharing second place with Jan Hein Donner.
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International Jubilee Tournament in Bamburg

Paul Keres was one of the strongest players in the world even before the war. That was more than a quarter of a century ago, but apparently nothing has changed — the Estonian, who has since become a Soviet citizen, can still battle on an equal footing with the very best.

Keres’ victory over the Austrian Andreas Dückstein looked on the surface like a routinely delivered piece of work, but a closer look revealed that it was not a one-way affair: Keres needed a lot of luck to get the win.

 
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1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3 Nc6 5.Bb5
5...Nf6 Black missed 5...a6! , which would have secured him a good game. 6.exd5 exd5 7.0-0 c4 Black makes a risky decision early on. More solid was 7...Be7 8.dxc5 Bxc5 9.Re1+ Be6 Due to the weakness on f2, White will not be able to play Ng5. 8.b3 A natural move, but not the only possibility for White. The greatest difficulties for Black would probably arise after the obvious 8.Re1+ 8...cxb3 9.Ne5 Qb6 9...bxc2? 10.Qxc2 Bd7 11.Nxc6 would of course have been extremely advantageous for White, who would have had the best opportunities to attack the black king still in the centre. 10.Qe2 Be7 11.Bxc6+ bxc6 12.Ba3 Keres has achieved a clear advantage by simple means... Ba6 ...which already seems promising after this careless move. Black could do better with 12...Be6 defending. 13.Nd3 0-0 14.Bxe7 Rfe8 15.Nxb3 Bxd3 16.cxd3 Kh8
Black, who could not avoid the loss of a piece, now wants to get it back with Ng8. 17.Qe5! Qb7 17...Ng8 18.Bc5 would lose quickly now. 18.Bxf6! In case of 18.Rfe1? Ng8 Black's plan would have worked. 18...Rxe5 19.Bxe5 Black has succeeded in grabbing the queen, but White is still up material. f6 20.Bf4 Re8 21.Rae1 Rxe1 22.Rxe1 h5 23.h4 Qa6 24.Nc1 Keres consolidates his material edge, but this is not really a good plan. Active play would have been the right way to move forward: 24.Nc5 Qxa2 25.Re8+ Kh7 26.Be3 a5 27.Ra8 Here, too, White has taken away all active possibilities from Black, but his pieces are much better placed than in the game: attacks against g7 are now possible. 24...Qa4 25.Be3 Qc2 26.g3 Kh7 27.Kg2 a5 28.Re2 Qc3 29.a4 Kg6 30.Ra2 Qb4 31.Bd2 Qb1 32.Kf3 Kf5 33.Ke2 g5 34.hxg5 fxg5 35.Ra3 h4
Unbelievable, but true: Due to the passive play of the attacking side, his advantage simply vanishes! 36.gxh4 gxh4 37.Rb3 Qa1 38.Rb8 Qxa4 39.Rf8+ Kg6 40.Rf4
No less unbelievable: Black now completely messes up the game. 40...Kh5?! Better was 40...Qa3! and White cannot play 41.Rxh4?? due to Qe7+ 41.f3 Qc2? A "self-mate": Rf6 follows. Once again 41...Qa3! was much better. 1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Keres,P-Dueckstein,A-1–01968Bamberg5

Tigran Petrosian

Relaxation between the strenuous battles

The Dutchman Jan Hein Donner made it into the chasing group behind Keres with his victory over the Spaniard Roman Toran. He joined Petrosian and Ivkov in second place.

 
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1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.Be3 Qe7 8.d5 Ng4 9.Bg5 f6 10.Bh4 Nh6 11.Nd2 Nd7 12.f3 a5 13.a3 g5 14.Bf2 f5 15.h3 Nf6 16.b4
16...g4 This normal-looking break probably comes too early: White is faster on the queenside. With 16...Nh5!= Black first improves the position of his pieces. 17.hxg4 fxg4 18.c5 Qf7?! Weak. Black weakenss d6 and blocks the f7-square for the knight on h6. After 18...Nf7! nothing would have been lost. 19.cxd6 cxd6 20.Nc4 gxf3 21.gxf3 axb4 22.axb4 Rxa1 23.Qxa1
23...Nfg4 After this desperate-looking jump, White is much better. Passive defence was required: 23...Qd7 24.Bb6! White has correctly recognized that the black army cannot harm his king - and simply keeps his great bishop. Nf6 25.Nxd6 Qg6 26.Rg1 Qh5 27.Ncb5 Kh8 28.Be3 Nhg8 29.Nxc8 Rxc8 30.Nd6 Rf8 31.Nf5 Bh6 32.Nxh6 Nxh6 33.Kd2 Nf7 34.Rh1 Qg6 35.Qg1 Nxe4+ In order to avoid the queen swap, Black gives up a piece. 36.fxe4 Qxe4 37.Bd3 Qxb4+ 38.Ke2 Qb2+ 39.Bd2 e4 40.Bxe4 Qb5+ 41.Ke1 h7 cannot be covered anymore. 1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Donner,J-Toran Albero,R-1–01968Bamberg5

Results

1 Paul Keres 1 - 0 Andreas Dueckstein
2 Wolfgang Unzicker  ½ - ½ Helmut Pfleger
3 Hans Guenter Kestler ½ - ½ Tigran V Petrosian
4 Heikki MJ Westerinen 1 - 0 Milko Georgiev Bobotsov
5 Klaus Klundt 0 - 1 Juergen Teufel
6 Borislav Ivkov  ½ - ½ Laszlo Szabo
7 Jan Hein Donner  1 - 0 Roman Toran Albero
8 Rudolf Teschner  ½ - ½ Lothar Schmid

Standings after round 5

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Games

 
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1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 0-0 5.Bd3 d5 6.Nf3 c5 7.0-0 Nc6 8.a3 cxd4 9.exd4 dxc4 10.Bxc4 Be7 11.Re1 Bd7 12.Ba2 Rc8 13.Qd3 Re8 14.Ne5 g6 15.Bg5 Nh5 16.Bxe7 Qxe7 17.Nc4 b5 18.Ne3 b4 19.Ne4 Nf6 20.Nc4 Rcd8 21.Nxf6+ Qxf6 22.Nd6 Re7 23.Rad1 Be8 24.Nxe8 Rexe8 25.Qa6 Nxd4 26.Qxa7 b3 27.Bb1 Nc2 28.Rxd8 Rxd8 29.Rf1 Qxb2 30.Qb6 Rd5 31.a4 Qc3 32.h3 Kg7 33.g3 Ra5 34.h4 Rxa4 35.h5 gxh5 36.Qd8 h6 0–1
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WhiteEloWBlackEloBResYearECOEventRnd
Szabo,L-Petrosian,T-0–11968E57Bamberg1
Ivkov,B-Pfleger,H-1–01968D37Bamberg1
Teschner,R-Unzicker,W-½–½1968B13Bamberg1
Keres,P-Schmid,L-1–01968B21Bamberg1
Kestler,H-Bobotsov,M-0–11968E92Bamberg1
Dueckstein,A-Teufel,J-½–½1968B53Bamberg1
Westerinen,H-Donner,J-0–11968B09Bamberg1
Klundt,K-Toran Albero,R-½–½1968B34Bamberg1
Szabo,L-Dueckstein,A-1–01968A92Bamberg2
Schmid,L-Ivkov,B-½–½1968A42Bamberg2
Bobotsov,M-Keres,P-½–½1968D25Bamberg2
Toran Albero,R-Westerinen,H-½–½1968D91Bamberg2
Petrosian,T-Unzicker,W-½–½1968D40Bamberg2
Teufel,J-Kestler,H-½–½1968B35Bamberg2
Donner,J-Teschner,R-½–½1968D19Bamberg2
Pfleger,H-Klundt,K-½–½1968E61Bamberg2
Westerinen,H-Pfleger,H-½–½1968B17Bamberg3
Teschner,R-Toran Albero,R-½–½1968E99Bamberg3
Keres,P-Teufel,J-1–01968A54Bamberg3
Ivkov,B-Bobotsov,M-½–½1968A35Bamberg3
Unzicker,W-Donner,J-½–½1968B09Bamberg3
Kestler,H-Szabo,L-½–½1968B99Bamberg3
Dueckstein,A-Petrosian,T-0–11968B94Bamberg3
Klundt,K-Schmid,L-0–11968B87Bamberg3
Szabo,L-Keres,P-½–½1968E45Bamberg4
Bobotsov,M-Klundt,K-½–½1968D94Bamberg4
Dueckstein,A-Kestler,H-½–½1968C44Bamberg4
Pfleger,H-Teschner,R-½–½1968A30Bamberg4
Schmid,L-Westerinen,H-1–01968A54Bamberg4
Teufel,J-Ivkov,B-0–11968B06Bamberg4
Toran Albero,R-Unzicker,W-0–11968E54Bamberg4
Petrosian,T-Donner,J-½–½1968D14Bamberg4
Keres,P-Dueckstein,A-1–01968C08Bamberg5
Unzicker,W-Pfleger,H-½–½1968D34Bamberg5
Kestler,H-Petrosian,T-½–½1968E92Bamberg5
Westerinen,H-Bobotsov,M-1–01968B61Bamberg5
Klundt,K-Teufel,J-0–11968B53Bamberg5
Ivkov,B-Szabo,L-½–½1968C67Bamberg5
Donner,J-Toran Albero,R-1–01968E92Bamberg5
Teschner,R-Schmid,L-½–½1968C09Bamberg5

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Klaus Besenthal is computer scientist, has followed and still follows the chess scene avidly since 1972 and since then has also regularly played in tournaments.

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