Computer Chess Club Archives


Search

Terms

Messages

Subject: a nunn match(1000 seconds per move) Fritz5 - Junior4.6

Author: blass uri

Date: 01:55:06 05/07/98


fritz5(white) won Junior4.6 in the first position of the nunn match
both sides used 99,968 Kbytes hash tables
the game was
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 Nf6
6.N1c3 d6 7.Bf4 e5 8.Bg5 a6 9.Na3 b5 10.Bxf6 gxf6
11.Nd5 f5 12.c3 Bg7 13.exf5 Bxf5(the first nunn position)
14.Nc2 0.53/13   Ne7 0.55/16
15.Nxe7 0.50/14    Bxc2 0.41/16
16.Qxc2 0.53/15    Kxe7? 0.56/18  (Qxe7) (Junior does not know
the king should not move in the opening)
17.Bd3 0.34/14 (a4)           h5   0.60/17 (d5)
18.Be4 0.44/14 (a4)           Rb8 0.44/18 (Rc8)
19.Bd5 0.59/14(Rd1)         b4 0.44/17 (Qa5)
20.c4 0.69/13 (cxb4)         h4 0.55/17
21.0-0 0.66/13  (h3)           h3  0.46/17 (Qc8)
22.g3 0.78/13                    Kf8 0.54/17(Qb6)
23.f4 1.03/13                     Bf6 0.83/17
24.Rae1 0.88/12(fxe5)       Rh6 0.81/16
25.Kh1 0.84/12(Qd3)         Kg7  1.13/17 (Qd7)
26.g4 2.06/13                    exf4 1.61/17
27.Rxf4 1.91/12                 Rg6 1.60/15
28.Qd3  2.50/13                Rh6 5.64/16
29.g5 5.69/12                    Bxg5 6.43/14
30.Rxf7+9.22/13                Kh8   7.28/15
31.Re6 9.72/13                  Rh4 12.58/15
32.Qg3 15.16/13                Rh7 #12/15
33.Rxh7+#11/12
and I stopped the game.
Junior do another strategical error in the second position of the nunn
match.
after the moves
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6
6.Bc4 e6 7.Be3 a6 8.Qe2 Qc7 9.0-0-0 Be7 10.Bb3 0-0
Junior prefer to play at depth 15-18 Nxc6(at depth13 it prefer g4
and at depth 14 f4).

it is strange that Junior does mistake only if it has a lot of time
in this position.
David Levy wrote about this move in similiar positions that it is
a typical computer error.
the computer is "thinking" something like this:"if I play
Nxc6 and the opponent take with the b-pawn it(he,she) has
an isolated a-pawns and this is the reason it is good for white.
Junior lose this game after
11.Nxc6 0.05/17              bxc6 -0.13/12
12.f4 0.02/17                   d5-0.06/13
13.e5 -0.05/15 (Qf3)        Nd7 -0.34/13
14.Ne4  -0.13/17             Rb8 -0.31/14 (a5)
15.c3     -0.08/17             f6   -0.25/13
16.exf6   -0.15/16            Nxf6 -0.34/13
17.Rhe1  -0.11/16            Bd7   -0.42/12(e5)
18.Kb1    -0.29/15(Nc5)    c5 -0.84/12
19.c4    -0.54/14                Rb4 -0.84/13
20.Bd2 -0.70/16                 Rxa4 -0.97/14
21.Rxa4 -0.92/17               Bxa4 -1.06/13
22.Qxe6+ -0.91/15             Kh8 -0.94/14(Rf7)
and black gave white checkmate at move 62

Of course Junior can win fritz in other games
Junior probably win the first game with white because fritz
do mistake in its first move (it play Rb8 instead of Ne7)
and Junior has a clear adventage after 15.Nab4



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.