Newsgroups: rec.games.chess
Subject: Round 1, 22d Annual Int. Computer Chess Championship
From: Jerry Bryan <BRYAN@wvnvm.wvnet.edu>
Date: Sunday, 22 Nov 1992 00:52:45 EST

Article by Danny Kopec, Monty Newborn, Mike Valvo

Communications of the ACM, November 1992

I scanned the article, and tried to correct any scanning errors.

Round 1

All the ranked computers except
MEPHISTO won.   MEPHISTO
dominated SOCRATES throughout
the opening and early middle game,
but pressed too hard, got overex-
tended and its position came apart at
the seams. It is a game worth playing
over as there were many interesting
tactics.
    DEEP THOUGHT II got an ad-
vantage out of the opening and kept
squeezing until ZARKOV's position
fell apart in a game that showed the
power of two bishops.
    CRAY BLITZ managed to obtain
the advantage of two minor pieces
against a rook and pawn in its game
with BP. On a purely material basis,
this is considered equal, but the activ-
ity proved too much for the rook to
handle.
    BEBE seemed to have caught
CHESS  MACHINE/SCHROEDER
unprepared with its own private
book, but it did not appreciate the
dark-colored bishop's pressure on
the g7 square and never could get
the kingside developed.
    The LACHEX vs. HITECH game
seemed equal for a long time, but
HITECH dominated in the end-
game. LACHEX played the opening
too tentatively and allowed Black to
equalize easily and even obtain a
slight edge.
    DELICATE BRUTE played an
interesting pawn sacrifice against M
CHESS, but could never convert its
temporial advantages into anything
concrete. After that, M CHESS was
in complete command.


CHESS MACHINE/SCHROEDER
vs. BEBE
1.d4 Nf6 2.Nf3 c5 3.dxc5 e6 4.b4 a5
5.c3 b6 6.cxb6 axb4 7.Be3 Nd5
8.Bd4 Nxb6 9.e4 Bb7 1O.a3 Bxe4
[ 1O...bxa3  11.Qb3]  11.cxb4  Nc6
12.Bc3 Nd5  13.Bb2 d6  14.Nbd2
Bxf3 [14...Bg6] 15.Nxf3 Qb6 16.Rc1
h5 [16...Nf6] 17.Qc2 Ncxb4 18.axb4
Qxb4+ 19.Kd1 Rd8 20.gb1 Qc5
21.Qa4+ Ke7 22.Bd4 Qc7 23.Bc4
Rb8 24.Rxb8 Qxb8 25.Bxd5 Rg8
26.Ng5 1-O

CRAY BLITZ vs. BP
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4
Nf6 5.O-O Be7 6.Bxc6 dxc6 7.d3
Nd7 8.b3 c5 9.Be3 b6 10.Nbd2 Bb7
11.c3 O-O 12.Qc2 Bd6 13.Rad1 Re8
14.d4 exd4 15.cxd4 cxd4 16.Bxd4 c5
17.Bb2 Bf4 18.Nc4 Bc6 19.Nfe5 Qc7
20.Nxd7 Bxd7 21.g3 Bh3 22.gxf4
Qxf4 23.Qc3 Qg4+ 24.Qg3 Qxg3+
25.hxg3 Bxf1 26. Kxf1 Re6 27.Rd7
Rae8 28.f3 f6 29.Ke2 Kf8 30.Ba3
Kg8 31.Kd2 h5 32.Ke2 g5 33.Ne3 g4
34.Bb2 gxf3+ 35.Kxf3 Rf8 36.Nf5
b5 37.Nh6+ Kh8 38.Kf4 c4 39.Kf5
Ree8 40.Kg6 Rg8+ 41.Kxf6 Rxg3
42.Bd4 Re7 43.Rxe7 1-0

LACHEX vs. HITECH
1.d4 d5 2.c4 dxc4 3.e3 Nf6 4.Bxc4 e6
5.Nf3 c5 6.O-O a6 7.Nc3 b5 8.Be2
[8.Bb3 Bb7 9.Qe2 cxd4 10.Rd1 Be7
11.exd4] 8...Bb7 9.Ne5 Nc6 10.Bf3
Re8 11.dxc5 Qxd1 12.Rxd1 Bxc5
13.a4 b4 14.Ne4 Nxe4 15.Bxe4 Rc7
16.Bxc6+  Bxc6  17.Bd2  [17.Nxc6
Rxc6 18.b3] 17...Bd5 18.Nd3 a5
19.Nxc5  gxc5  20.Rdc1  Rxc1+
21.Rxc1 Kd7 22.f3 Bb3 23.e4 Rc8
24.Rxc8 Kxc8 25.Be3 Kc7 26.Bd4 f6
27.g4 Kc6 28.e5 f5 29.gxf5 exf5
30.Kg2 g6 31.Be3 Bxa4 32.f4 Bb3
33.Bd2 Kc5 34.Be3+ Kd5 35.h4 Ke4
36.Kf2 a4 37.Bd2 a3 38.bxa3 bxa3
39.Kg3 Kd3 40.Bc1 a2 41.Bb2 Kc2
42.Bd4 Kb1 43.h5 gxh5 O-1

DELICATE BRUTE vs. M CHESS
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4
5.cxd4 d6 6.Bc4 Nb6 7.Bb5+ Bd7
8.e6 fxe6 [8...Bxb5 9.Qh5] 9.Bd3 g6
10.h4 Ba4 11.Qg4 Qc8 12.Ne2 Nd5
13.O-O Bc6 14.Nbc3 Nf6 15.Qh3
Bg7 16.Nf4 Bd7 17.Bb5 Nc6
18.Bxc6 bxc6 19.Qd3 O-O 20.Re1
Ng4 21.f3 Nh6 22.h5 Nf5 23.hxg6
Bxd4+ 24.Kh1 e5 25.gxh7+ Kxh7
26.g4 Rh8 27.b4 Kg8+ 28.Nh5
Ng3+ 29.Kg2 Nxh5 30.gxh5 Bh3+
31.Kg3 Bf5 32.Qc4+ d5 33.Qb3
Rxh5 34.Bb2 Kh8 35.Ba3 Qg8+ 0-1

SOCRATES vs. MEPHISTO
1.e4 c5 2.Nf3 d6 3.Bb5+  Bd7
4.Bxd7+ Qxd7 5.c4 Nc6 6.O-O Nf6
7.Nc3 e5 8.d3 Be7 9.Nd5 O-O
10.Nxe7+ Qxe7 11.Bd2 Nd7 12.Re1
f5 13.Qb3 fxe4 14.dxe4 Nb6 15.Ng5
h6 16.Nh3 Qe6 17.Rac1 Nd4 18.Qd3
Nf3+  19.gxf3 Qxh3 20.Re3 Rf4
21.Qf1 Qh5 22.Qd3 Rh4 23.Qxd6
gxh2 24.Kf1 Qh4 25.Be1 Rd8
26.Qe6+ [26.Qxe5 Rd2] 26...Kh7
27.Ke2 Qg5 28.Bc3 Qg2 29.Rf1 Rd1
30.Qf5+ Kg8 31.Be1 Rd6 32.Rb3 a6
33.Qxe5 Nxc4 34.Qxc5 b5 35.a4 Re6
36.Qc8+   Kf7   37.Qd7+   Re7
38.Qd5+ Re6 39.axb5 axb5 40.Qf5+
Rf6 41.Qxb5 Nd6 42.Qd7+ Kg6
43.e5 Rh5 44.exf6 Re5+ 45.Re3
Rxe3+ 46.Kxe3 Qxf1 47.Qxg7+ Kf5
48.Bc3 Qc1+ 49.Ke2 Qc2+ 50.Kf1
Qc1+ 51.Kg2 Qg5+ 52.Kh3 Qh5+
53.Kg3  Qg5+  54.Qxg5+  Kxg5
55.Be5 Nf7 56.f4+ Kf5 57.b4 Kg6
58.b5 Nd8 59.f5+ Kf7 60.b6 Kf8
61.Kh4 1-O

DEEP THOUGHT II vs. ZARKOV
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4
Nf6 5.O-O Be7 6. ge1 b5 7.Bb3 d6
8.c3 O-O 9.h3 Na5 10.Bc2 c5 11.d4
Qc7 12.Nbd2 cxd4 13.cxd4 Bd7
14.Nf1 Rac8 15.Re2 exd4 16.Nxd4
Nc6  17.Be3  h6  18.Ng3  Nxd4
19.Bxd4 Be6 20.Nf5 Bxf5 21.exf5
Rfd8 22.a4 b4 23.Bd3 a5 24.Ba6 Rb8
25.Rc1 Qd7 26.Bb5 Qb7 27.Bc6 Qc7
28.Qe1 Kf8 29.Rec2 Ng8 30.Be4
Qd7 31.Rc7 Qxa4 32.Ba7 [32.f6 gxf6
(32...Bxf6 33.Rxf7+ Kxf7 34.Bd5+)
33.Bh7 Rd7 34.Qe2 Rxc7 35.Rxc7
Bd8] 32...d5 33.Bxd5 Rxd5 34.Bxb8
Qe8  35.Ba7  Rd7  36.Bb6  Rxc7
37.Rxc7 Nf6 38.Qc1 Bd8 39.Rc8
Bxb6 40.Rxe8+ Kxe8 41.Qc6+ Nd7
42.Qa8+ Ke7 43.Kf1 Nf6 44.Qb7+
Nd7 45.Qd5 Ke8 46.Qe4+ Kf8
47.h4 Nf6 48.Qa8+ Ke7 49.Qb7+
Nd7 50.Qe4+ Kf8 51.h5 Nf6
52.Qa8+   Ke7   53.Qb7+   Nd7
54.Qe4+ Kf8 55.Qd5 Ke7 56.Ke2
Ke8 57.Qe4+ 1-0