Bamberg 1968, Round 12: Teschner beats Ivkov!

by Klaus Besenthal
7/4/2020 – The editor of the chess periodical “Deutsche Schachzeitung” Rudolf Teschner is an International Master and thus a strong chess player. Yesterday at the Bamberg Jubilee Tournament, Yugoslavian grandmaster Borislav Ivkov confirmed this was the case when he lost to Teschner — in fourth place, Teschner is now half a point ahead of Ivkov. At the top of the table, World Champion Petrosian and Bamberg’s Lothar Schmid have moved closer to Paul Keres: both won their games, while Keres signed a quick draw against Wolfgang Unzicker. | Pictured: A view of Bamberg from Michelsberg
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International Jubilee Tournament in Bamburg

Rudolf Teschner did not fear playing against the Yugoslavian Ivkov, who was placed comfortably ahead of him in the — unwritten — hierarchy of chess players. Teschner was not impressed when Ivkov and his dangerous-looking pawn duo made a final attempt to win in the centre of the board. On the contrary: Teschner bothered Ivkov’s increasingly vulnerable king with mate threats and got himself a nice passed pawn. When Ivkov was finally overtaken tactically, Teschner single-mindedly secured the full point:

 
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1.g3 d5 2.Bg2 e5 3.c4 d4 4.d3 Nf6 5.Nf3 Nc6 6.0-0 Be7 7.b4 Nxb4 8.Nxe5 0-0 9.Nd2 Re8 10.Nb3 Bf8 11.Nf3 c5 12.a3 Nc6 13.e3 dxe3 14.Bxe3 Na5 15.Rb1 Nxb3 16.Qxb3 Re6 17.Nd2 Rb6 18.Qc3 Bf5 19.Ne4 Nxe4 20.dxe4 Be6 21.f4 Rxb1 22.Rxb1 b6 23.Qc2 Qe8 24.Rd1 Rd8 25.Rxd8 Qxd8 26.f5
Up to this point, the game had been largely within the realms of equality, but with his movable majority on the kingside, Ivkov is now trying to create an attack. 26...Bc8 27.e5 This pawn duo looks impressive, but cannot advance any further for the time being due to a lack of support from White's pieces. b5 Teschner accepts the fight and, based on tactical motifs, gets his own majority going. With 27...Qe7 Black would have put his finger in the wound: the lack of piece support for the white pawn duo. 28.Bf4 Or 28.Qe4 g6 28...g5! 28.cxb5 Qa5 Black recovers his pawn easily: White must first fight off the threat of Qe1+ and Qxe3. 29.Kf2 Qxb5 30.Bd5 Ba6 Now even Qf1 threatens an immediate mate. 31.g4 c4 31...Qf1+ 32.Kg3 Black would have achieved nothing at this point. 32.Qe4 c3
Black has actually made more progress than the white pawn duo in the centre, and Bxa3 is still a threat - for White the time for action has come. 33.e6? But not like this! Ivkov's move opens an important square on d6 for the f8-bishop. Correct was 33.Bxf7+! Kxf7 34.e6+ Kg8 35.e7 Bxe7 36.Qxe7= 33...Qf1+ 34.Kg3 Bd6+! There it is! 35.Bf4? This is very bad - which was actually not difficult to see. It was absolutely necessary 35.Kh4 whereby the following variations would certainly not have been calculable down to the last detail even for a grandmaster: Be7+! A move also with defensive qualities: now exf7+ would not immediately win for white - if it ever came to that. 36.g5 36.Kg3? Qe1+ 37.Kf4 c2! would lose for the reason just mentioned: 38.exf7+ Kf8 36...Qe1+ 37.Kh3 37.Kg4 loses this way: h5+ 38.gxh6 Qh4+ 39.Kf3 Qh3+ 40.Kf2 Bh4+ 37...Bf1+ 38.Kg4 Be2+ 38...h5+? as in the variation above does not work here: 39.gxh6 Qh4+ 40.Kf3 Qh3+? 41.Kf2 Bh4+? 42.Kg1 with a safe refuge for the white king - because the f1-bishop blocks the square from which the black queen would like to checkmate. 39.Kh3 Qf1+ 40.Kh4 f6 41.gxf6 gxf6 42.Qf4 Qxf4+ 43.Bxf4 Kf8 Here the black passedd pawn is more dangerous than its white counterpart, but the game would not have been over yet. 35...Qxf4+ 36.Qxf4 Bxf4+ Followed by c3-c2-c1Q. 0–1
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WhiteEloWBlackEloBResYearECOEventRnd
Ivkov,B-Teschner,R-0–11968Bamberg12

Borislav Ivkov

Borislav Ivkov has suffered two successive defeats

The sole leader Paul Keres drew against Wolfgang Unzicker — the game lasted just 14 moves. World Champion Petrosian used this opportunity to reduce the gap with Keres to just one point. In his game against the Bulgarian Bobotsov, Petrosian obtained a clean, smooth victory:

 
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1.c4 c5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 cxd4 5.Nxd4 e6 6.g3 Be7 7.Bg2 0-0 8.0-0
8...a6 Understandably, Black doesn't want to see a white knight on b5, but this move was probably not really necessary - it always leaves a hole on b6. But maybe Black wanted to give his queen the secure square c7, from where it would press on the imperceptible white weakness on c4. Also possible here was 8...Qa5 9.Nb3 White takes pressure off from c6, allowing Black to move his d-pawn to d6. Good was 9.Bf4 9.b3 is also played here. 9...d6! Now Black is okay. 10.Bf4 Ng4 11.Rc1 Nge5 12.Na4 Ng6 13.Be3 Bf6?!
With this move, Black seems to be ruining the coordination of his own pieces. Always suspicious: a bishop looks good, but in fact does not threaten anything. 14.Qd2 Qc7?! The coordination of the black pieces was bad and certainly did not improve with this move. Painful as it would have been: 14...Be7 was the lesser of two evils. 15.Rfd1 Be7 But now the remorseful returns. 16.Nb6! This move will inevitably give the world champion an extra pawn. Rb8 17.Nd5! exd5 18.cxd5 Bd7 19.Nd4 Nge5 20.f4 Qa5 21.dxc6 Qxd2 22.Rxd2 Nxc6 23.Bxc6
White wins a pawn on c6, while his pieces are well placed. 23...Rfc8? And now this. Had Bobotsov simply forgotten that he temporarily was a piece down? 24.Bxd7! Of course! Rxc1+ 25.Kf2 Now White is not a mere pawn up, but has two pieces for the rook, and that is even better. g6 26.Rd3 Rc7 27.Bh3 Bf6 28.Bg2 Re8 29.b3 For instance: 29.b3 Rce7 30.Nc2 The black pieces can do nothing - the d6-pawn cannot be saved. 1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Petrosian,T-Bobotsov,M-1–01968Bamberg12

In third place, Bamberg’s grandmaster Lothar Schmid is half a point behind the world champion. Schmid also gained a full point yesterday as he coolly rejected Jürgen Teufel’s attacking attempts:

 
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1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.Bd3 Bb7 7.0-0 d6 8.f4 Nd7
A position in which a lot of alternatives are possible - for the time being, however, there is approximate equality. 9.a3?! But now White makes a move that doesn't really look good. He refrains from attacking the black pawn chain with a2-a4, and in general, in that case, the c3-knight can easily react to b5-b4 by jumping to a4, from where it would have controlled the important square c5. Ngf6 10.Kh1 And here, White would have done better with 10.Qe2 continuing the development. 10...g6! White's loss of a tempo allows Black to develop his bishop on a more active square than e7. 11.e5?! If Black could actually allow himself his last move, then this move cannot be good, but Teufel probably thought he could profit from the black king being stuck in the centre. Doubtful would also be 11.f5?! gxf5 12.exf5 Rg8 13.Nf3 e5 with an initiative for Black due to his good pieces and strong central pawns - a rare case when not having castled is not a problem. 11...dxe5 12.fxe5 Nxe5 Black takes the pawn, and that is absolutely justified. 13.Bg5 Be7 14.Bxf6 Bxf6 15.Be4 Bxe4 16.Nxe4 Bg7
The black king is still in the centre, but it is not clear how White could take advantage of this. 17.a4 b4 18.Nxe6? White continues the plan that started with 11.e5 with extreme consistency, but it does not work. fxe6 19.Qe1 Qe7! The immediate 19...Nf7? would also have fended off the threat of Rd1 and Nd6+, but after 20.Nc5! Black's advantage has suddenly shrunk considerably. 20.Rd1 Nf7 21.Nc5 0-0! It is done - now Black is simply a piece up. 22.Qxb4 Playing 22.Nxe6 Rfe8 23.Nxg7 Qxe1 etcetera would have been of no use. 22...Rac8 23.Nxa6 Qxb4 24.Nxb4 Bxb2 0–1
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Teufel,J-Schmid,L-0–11968Bamberg12

Another half point behind, Rudolf Teschner is sharing fourth place with Wolfgang Unzicker and the Finnish Heikki Westerinen.

Bamberg 1968

Great interest of spectators at the playing hall

Results of round 12

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

Standings after round 12

Rg. Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pts.
1 Paul Keres   ½ 1 ½ ½ 1   1   ½ ½ 1 1 1 1   9.5
2 Tigran V Petrosian ½   ½ ½     1 ½ ½ 1 1 ½   1 ½ 1 8.5
3 Lothar Schmid 0 ½   ½ ½ 1 ½ ½ ½ 1     1   1 1 8.0
4 Wolfgang Unzicker ½ ½ ½   ½   ½   ½ 1 1 ½ ½ ½   1 7.5
5 Rudolf Teschner ½   ½ ½     ½ 1 ½ 0 1 ½ 1 1   ½ 7.5
6 Heikki MJ Westerinen 0   0       ½ 1 0 1 1 1 1 1 ½ ½ 7.5
7 Helmut Pfleger   0 ½ ½ ½ ½   0 1 1 ½   1   ½ 1 7.0
8 Borislav Ivkov 0 ½ ½   0 0 1     ½ ½ 1 1 1 1   7.0
9 Jan Hein Donner   ½ ½ ½ ½ 1 0     0 1 ½ 1 ½   1 7.0
10 Milko Georgiev Bobotsov ½ 0 0 0 1 0 0 ½ 1     1     ½ ½ 5.0
11 Laszlo Szabo ½ 0   0 0 0 ½ ½ 0     ½   1 1 ½ 4.5
12 Hans Guenter Kestler 0 ½   ½ ½ 0   0 ½ 0 ½   ½ ½ 1   4.5
13 Juergen Teufel 0   0 ½ 0 0 0 0 0     ½   ½ 1 1 3.5
14 Andreas Dueckstein 0 0   ½ 0 0   0 ½   0 ½ ½   ½ 1 3.5
15 Klaus Klundt 0 ½ 0     ½ ½ 0   ½ 0 0 0 ½   ½ 3.0
16 Roman Toran Albero   0 0 0 ½ ½ 0   0 ½ ½   0 0 ½   2.5

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
Teschner,R-Unzicker,W-½–½1968B13Bamberg1
Westerinen,H-Donner,J-0–11968B09Bamberg1
Klundt,K-Toran Albero,R-½–½1968B34Bamberg1
Kestler,H-Bobotsov,M-0–11968E92Bamberg1
Ivkov,B-Pfleger,H-1–01968D37Bamberg1
Dueckstein,A-Teufel,J-½–½1968B53Bamberg1
Keres,P-Schmid,L-1–01968B21Bamberg1
Pfleger,H-Klundt,K-½–½1968E61Bamberg2
Schmid,L-Ivkov,B-½–½1968A42Bamberg2
Bobotsov,M-Keres,P-½–½1968D25Bamberg2
Teufel,J-Kestler,H-½–½1968B35Bamberg2
Toran Albero,R-Westerinen,H-½–½1968D91Bamberg2
Szabo,L-Dueckstein,A-1–01968A92Bamberg2
Petrosian,T-Unzicker,W-½–½1968D40Bamberg2
Donner,J-Teschner,R-½–½1968D19Bamberg2
Keres,P-Teufel,J-1–01968A54Bamberg3
Ivkov,B-Bobotsov,M-½–½1968A35Bamberg3
Unzicker,W-Donner,J-½–½1968B09Bamberg3
Kestler,H-Szabo,L-½–½1968B99Bamberg3
Westerinen,H-Pfleger,H-½–½1968B17Bamberg3
Teschner,R-Toran Albero,R-½–½1968E99Bamberg3
Klundt,K-Schmid,L-0–11968B87Bamberg3
Dueckstein,A-Petrosian,T-0–11968B94Bamberg3
Teufel,J-Ivkov,B-0–11968B06Bamberg4
Toran Albero,R-Unzicker,W-0–11968E54Bamberg4
Petrosian,T-Donner,J-½–½1968D14Bamberg4
Dueckstein,A-Kestler,H-½–½1968C44Bamberg4
Bobotsov,M-Klundt,K-½–½1968D94Bamberg4
Szabo,L-Keres,P-½–½1968E45Bamberg4
Schmid,L-Westerinen,H-1–01968A54Bamberg4
Pfleger,H-Teschner,R-½–½1968A30Bamberg4
Keres,P-Dueckstein,A-1–01968C08Bamberg5
Teschner,R-Schmid,L-½–½1968C09Bamberg5
Unzicker,W-Pfleger,H-½–½1968D34Bamberg5
Kestler,H-Petrosian,T-½–½1968E92Bamberg5
Klundt,K-Teufel,J-0–11968B53Bamberg5
Ivkov,B-Szabo,L-½–½1968C67Bamberg5
Donner,J-Toran Albero,R-1–01968E92Bamberg5
Westerinen,H-Bobotsov,M-1–01968B61Bamberg5
Kestler,H-Keres,P-0–11968E15Bamberg6
Pfleger,H-Donner,J-1–01968E61Bamberg6
Petrosian,T-Toran Albero,R-1–01968E66Bamberg6
Schmid,L-Unzicker,W-½–½1968C87Bamberg6
Szabo,L-Klundt,K-1–01968E70Bamberg6
Dueckstein,A-Ivkov,B-0–11968B06Bamberg6
Teufel,J-Westerinen,H-0–11968C69Bamberg6
Bobotsov,M-Teschner,R-1–01968D42Bamberg6
Keres,P-Petrosian,T-½–½1968C13Bamberg7
Toran Albero,R-Pfleger,H-0–11968A14Bamberg7
Teschner,R-Teufel,J-1–01968A25Bamberg7
Westerinen,H-Szabo,L-1–01968B94Bamberg7
Unzicker,W-Bobotsov,M-1–01968B92Bamberg7
Ivkov,B-Kestler,H-1–01968A37Bamberg7
Donner,J-Schmid,L-½–½1968A55Bamberg7
Klundt,K-Dueckstein,A-½–½1968C00Bamberg7
Dueckstein,A-Westerinen,H-0–11968B02Bamberg8
Szabo,L-Teschner,R-0–11968D17Bamberg8
Keres,P-Ivkov,B-1–01968C08Bamberg8
Bobotsov,M-Donner,J-1–01968E88Bamberg8
Schmid,L-Toran Albero,R-1–01968B36Bamberg8
Kestler,H-Klundt,K-1–01968A26Bamberg8
Petrosian,T-Pfleger,H-1–01968C99Bamberg8
Teufel,J-Unzicker,W-½–½1968C69Bamberg8
Westerinen,H-Kestler,H-1–01968B17Bamberg9
Toran Albero,R-Bobotsov,M-½–½1968E52Bamberg9
Teschner,R-Dueckstein,A-1–01968C18Bamberg9
Ivkov,B-Petrosian,T-½–½1968C88Bamberg9
Donner,J-Teufel,J-1–01968A55Bamberg9
Pfleger,H-Schmid,L-½–½1968D75Bamberg9
Unzicker,W-Szabo,L-1–01968B64Bamberg9
Klundt,K-Keres,P-0–11968C73Bamberg9
Teufel,J-Toran Albero,R-1–01968B35Bamberg10
Kestler,H-Teschner,R-½–½1968D12Bamberg10
Bobotsov,M-Pfleger,H-0–11968D55Bamberg10
Dueckstein,A-Unzicker,W-½–½1968C95Bamberg10
Szabo,L-Donner,J-0–11968A69Bamberg10
Keres,P-Westerinen,H-1–01968B09Bamberg10
Ivkov,B-Klundt,K-1–01968E66Bamberg10
Petrosian,T-Schmid,L-½–½1968A37Bamberg10
Klundt,K-Petrosian,T-½–½1968B87Bamberg11
Toran Albero,R-Szabo,L-½–½1968A34Bamberg11
Unzicker,W-Kestler,H-½–½1968B64Bamberg11
Westerinen,H-Ivkov,B-1–01968B06Bamberg11
Pfleger,H-Teufel,J-1–01968E61Bamberg11
Donner,J-Dueckstein,A-½–½1968D22Bamberg11
Teschner,R-Keres,P-½–½1968C71Bamberg11
Schmid,L-Bobotsov,M-1–01968B61Bamberg11
Petrosian,T-Bobotsov,M-1–01968A33Bamberg12
Ivkov,B-Teschner,R-0–11968A09Bamberg12
Keres,P-Unzicker,W-½–½1968C84Bamberg12
Szabo,L-Pfleger,H-½–½1968D63Bamberg12
Klundt,K-Westerinen,H-½–½1968C87Bamberg12
Dueckstein,A-Toran Albero,R-1–01968B34Bamberg12
Teufel,J-Schmid,L-0–11968B43Bamberg12
Kestler,H-Donner,J-½–½1968B09Bamberg12

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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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