Author: Dirk Frickenschmidt
Date: 03:04:57 08/19/98
At the annual Lippstadt tournament the program Zugzwang played quite good this
year.
Let me cite TWIC:
"At one point it looked as if the computer Zugzwang would be the runaway winner
of the tournament. Developed at nearby Paderborn University and a regular
competitor at Lippstadt, it led with 5/7 and was running a performance rating of
2640 before Slovenian IM Dusko Pavasovic's exemplary win against it in Round 8."
It's final standing as 3rd ahead of GMs Bischoff and Kindermann and it's
performance of 2544 in such a tournament still is GM-like level.
"Lippstadt GER (GER), VII-VIII 1998 cat. VIII (2439)
----------------------------------------------------------------------
1 2 3 4 5 6 7 8 9 0 1 2
----------------------------------------------------------------------
1 Giorgadze, Giorgi g GEO 2610 * = = = = = = 1 1 1 1 0 7.0 2576
2 McShane, Luke J m ENG 2470 = * 0 1 1 1 = 0 0 1 1 1 7.0 2629
3 Zugzwang ---- = 1 * 1 = 0 0 1 1 0 = 1 6.5 2544
4 Kindermann, Stefan g GER 2540 = 0 0 * = = 1 1 1 1 = = 6.5 2583
5 Prusikin, Mikhajlo GER 2475 = 0 = = * 0 = 1 1 = 1 1 6.5 2551
6 Bischoff, Klaus g GER 2550 = 0 1 = 1 * 1 = 0 = 0 = 5.5 2436
7 Pavasovic, Dusko m SLO 2475 = = 1 0 = 0 * = 0 0 1 1 5.0 2407
8 Bunzmann, Dimitrij GER 2455 0 1 0 0 0 = = * 1 = = 1 5.0 2481
9 Wehmeier, Stefan m GER 2425 0 1 0 0 0 1 1 0 * = 1 0 4.5 2448
10 Matthias, Heiner f GER 2390 0 0 1 0 = = 1 = = * 0 = 4.5 2378
11 Wilhelmi, Christian m GER 2470 0 0 = = 0 1 0 = 0 1 * 1 4.5 2408
12 Claesen, Pieter m BEL 2410 1 0 0 = 0 = 0 0 1 = 0 * 3.5 2376
----------------------------------------------------------------------"
One of Zugzwang's remarkable games was it's win with black against GM Kindermann
in a French(!) game: playing crystal clear positional chess against the human
and then beating him in a sharp ending. ;-)
Kindermann,S (2540) - Zugzwang [C19]
Hans & Lenze It Lippstadt GER (5), 03.08.1998
1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Nf3 Bd7 8.a4 Qa5 9.Bd2
Nbc6 10.Bb5 Qc7 11.0-0 0-0 12.Re1 b6 13.Bd3 h6 14.Qc1 c4 15.Bf1 f6 16.g3 fxe5
17.Nxe5 Nxe5 18.Rxe5 Nc6 19.Re1 e5 20.Bg2 e4 21.Qd1 Rae8 22.f3 exf3 23.Rxe8 Bxe8
24.Bxf3 Qf7 25.Bg2 Qf2+ 26.Kh1 Bf7 27.Qe1 Qf5 28.Rc1 Qd7 29.Bf4 Be6 30.Qe3 Bf5
31.Re1 Kh7 32.Qe2 Bg4 33.Qe3 g5 34.Be5 Bh3 35.Qe2 Bg4 36.Qe3 Rf7 37.Kg1 Bh3
38.Qe2 Bxg2 39.Kxg2 Qf5 40.g4 Qg6 41.Kg1 Nxe5 42.dxe5 Rf4 43.Rf1 Qe4 44.Qxe4+
Rxe4 45.Rf7+ Kg6 46.Rxa7 Rxg4+ 47.Kf2 Rf4+ 48.Kg3 Re4 49.Rb7 Re3+ 50.Kf2 Rxc3
51.Rxb6+ Kf5 52.e6 Kf6 53.a5 Rxc2+ 54.Ke3 Rxh2 55.Kd4 Rd2+ 56.Kc5 c3 57.Kd6 Re2
58.Kd7 c2 59.Rc6 d4 60.a6 d3 61.a7 d2 62.a8Q d1Q+ 63.Kc7 c1Q 64.Qf8+ Ke5 0-1
One more win happened against the young star Luke McShane achieving a GM norm in
Lippstatt. He was hit tactically right from the opening in a wild-west Sicilian:
Zugzwang - McShane,L (2470) [B94]
Hans & Lenze It Lippstadt GER (6), 04.08.1998
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Bc4 h6 8.Bxf6 Nxf6
9.Qe2 Qa5 10.0-0-0 Qg5+ 11.Kb1 g6 12.e5 Bg4 13.Nf3 Bxf3 14.Qxf3 Qxe5 15.Qxb7 Rd8
16.Rhe1 Qa5 17.Nd5 Nxd5 18.Bxd5 f5 19.b4 Qa3 20.Qc6+ Rd7 21.c3 e5 22.Rxe5+ dxe5
23.Be6 Be7 24.Qc8+ 1-0
On the other hand IM Pavasovic succeeded in overplaying the computer program
with reversed castling in a Russian game, where black got a fast and
irresistible king side attack after a pawn sacrifice in the opening (one of the
two options of classical anti-computer chess: sharp, sacrificing kingside
attacks or closed positional outplaying):
Zugzwang - Pavasovic,D (2475) [C43]
Hans & Lenze It Lippstadt GER (8), 06.08.1998
1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Qe2 Nxe5 7.Bxe4 dxe4 8.Qxe4
Be6 9.Qxe5 Qd7 10.0-0 Bd6 11.Qxg7 0-0-0 12.Qh6 Rdg8 13.g3 Rg6 14.Qh5 Bg4 15.Qd5
h5 16.Nc3 Kb8 17.Ne4 Bf3 18.Nc5 Qg4 19.Qxf7 h4 20.Nd7+ Ka8 21.Re1 Rgg8 22.Qe6
hxg3 23.fxg3 Qh5 0-1
Enjoy the games
Dirk
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