Author: Bernhard Bauer
Date: 23:51:51 05/05/99
Go up one level in this thread
On May 06, 1999 at 00:47:29, Paulo Soares wrote:
>[Event "K6400"]
>[Site "?"]
>[Date "1999.05.03"]
>[Round "?"]
>[White "Nimzo2000"]
>[Black "Hiarcs7"]
>[Result "1-0"]
>
>1. c3 d5 2. d4 e6 3. Bf4 Nf6 4. e3 c5 5. Nf3 Nc6
>6. Bd3 Bd6 7. Bxd6 Qxd6 8. Nbd2 e5 9. dxe5 Nxe5
>10. Nxe5 Qxe5 11. Nf3 Qc7 12. Bb5+ Bd7 13. Bxd7+ Qxd7
>14. Ne5 Qb5 15. Qd3 Qxb2 16. Rb1 Qa3 17. Qb5+ Ke7
>18. O-O b6 19. Qc6 Rac8 20. Qb7+ Ke6 21. f4 Rhg8
>22. f5 1-0
>
>A game between Nimzo2000 and Hiarcs7, in tourmanent level,in K6-400.
>It was placed here, in the CCC, for Marcus Kaestner. I am interested in
>two positions of this game, below I place those positions with
>some tests and comments. The tests had been made in a PII-300,
>HT=32Mb(HT=40Mb for Rebel10.0c and System Tiger), with 270(180*1.5)
>seconds for each move.
>
>First Position: 15....?
>r3k2r/pp3ppp/5n2/1qppN3/8/2PQP3/PP3PPP/R3K2R b - -
>In this position Fritz versions 1.2, 3.1, 4.01 and 5.00 , Crafty16.6
>and CometB00, as Fritz5.32 engines, Fritz5.32, Rebel10.c, System
>Tiger and Genius6, don't play 15....Qxb2?!, that was played by
>Hiarcs7.
>
>Second position:16....?
>r3k2r/pp3ppp/5n2/2ppN3/8/2PQP3/Pq3PPP/1R2K2R b - -
>Here, Fritz5.32, Rebel10.0c, System Tiger and Genius6, play 16....c4,
>the only move to continue the game. Hiarcs7 plays 16....Qa3?
>
>I know that a game is very little to arrive at some conclusion,
>but it's curious to observe as a strong program as Hiarcs7,
>considered positional, commits first an positional error
>(15....Qxb2?!) and soon to follow, plays a bad move
>(16....Qa3?).
>
>Regards,
>
>Paulo Soares, from Brazil.
Here some output for your first position computed by Crafty.
Crafty v16.6 (1 cpus)
+---+---+---+---+---+---+---+---+
8 | *R| | | | *K| | | *R|
+---+---+---+---+---+---+---+---+
7 | *P| *P| | | | *P| *P| *P|
+---+---+---+---+---+---+---+---+
6 | | | | | | *N| | |
+---+---+---+---+---+---+---+---+
5 | | *Q| *P| *P| N | | | |
+---+---+---+---+---+---+---+---+
4 | | | | | | | | |
+---+---+---+---+---+---+---+---+
3 | | | P | Q | P | | | |
+---+---+---+---+---+---+---+---+
2 | P | P | | | | P | P | P |
+---+---+---+---+---+---+---+---+
1 | R | | | | K | | | R |
+---+---+---+---+---+---+---+---+
a b c d e f g h
depth time score variation (1)
1-> 0.13 1.19 1. ... Qxb2
2-> 0.16 1.11 1. ... Qxb2 2. Rb1
3-> 0.19 0.44 1. ... Qxb2 2. Rb1 Qxa2 3. Rxb7
4-> 0.24 0.44 1. ... Qxb2 2. Rb1 Qxa2 3. Rxb7
5-> 0.30 0.67 1. ... Qxb2 2. Rb1 Qa3 3. Kf1 Rb8
6-> 0.41 0.68 1. ... Qxb2 2. Rb1 Qa3 3. Kf1 b6 4.
7-> 1.16 -0.12 1. ... Qxd3 2. Nxd3 Rc8 3. Rd1 Ke7
8-> 1.77 -0.01 1. ... Qxd3 2. Nxd3 Rc8 3. Rd1 Ke7
9-> 13.96 0.57 1. ... Qxb2 2. Rb1 Qxa2 3. Qb5+ Ke7
10-> 17.90 0.59 1. ... Qxb2 2. Rb1 Qxa2 3. Qb5+ Ke7
11-> 31.00 0.78 1. ... Qxb2 2. Rb1 Qxa2 3. Qb5+ Ke7
12-> 1:15 0.75 1. ... Qxb2 2. Rb1 Qxa2 3. Qb5+ Ke7
13 2:56 -- 1. ... Qxb2
13 6:06 0.00 1. ... Qxb2 2. Rb1 Qxa2 3. Rxb7 Qa1+
4. Ke2 Qa2+ 5. Ke1
time=15:00 cpu=201% mat=0 n=205083902 fh=93% nps=227777
ext-> checks=10619506 recaps=444520 pawns=43381 1rep=713145
thrt:26297
predicted=0 nodes=205083902 evals=56917096
endgame tablebase-> probes done=0 successful=0
SMP-> split=3061 stop=421 data=10/64 cpu=30:16 elap=15:00
Here some output for your second position computed by Crafty.
Crafty v16.6 (1 cpus)
+---+---+---+---+---+---+---+---+
8 | *R| | | | *K| | | *R|
+---+---+---+---+---+---+---+---+
7 | *P| *P| | | | *P| *P| *P|
+---+---+---+---+---+---+---+---+
6 | | | | | | *N| | |
+---+---+---+---+---+---+---+---+
5 | | | *P| *P| N | | | |
+---+---+---+---+---+---+---+---+
4 | | | | | | | | |
+---+---+---+---+---+---+---+---+
3 | | | P | Q | P | | | |
+---+---+---+---+---+---+---+---+
2 | P | *Q| | | | P | P | P |
+---+---+---+---+---+---+---+---+
1 | | R | | | K | | | R |
+---+---+---+---+---+---+---+---+
a b c d e f g h
depth time score variation (1)
1-> 0.12 0.44 1. ... Qxa2 2. Rxb7
2-> 0.17 0.44 1. ... Qxa2 2. Rxb7
3-> 0.23 0.67 1. ... Qa3 2. Kf1 Rb8
4-> 0.29 0.68 1. ... Qa3 2. Kf1 b6 3. Qb5+ Kf8
5-> 0.51 -0.17 1. ... Qxa2 2. Qb5+ Ke7 3. Qxb7+ Ke6
6-> 0.90 -0.07 1. ... Qa3 2. Qb5+ Ke7 3. Qxb7+ Ke6
7-> 2.72 0.57 1. ... Qxa2 2. Qb5+ Ke7 3. Qxb7+ Ke6
8-> 4.89 0.59 1. ... Qxa2 2. Qb5+ Ke7 3. Qxb7+ Ke6
9-> 11.39 0.78 1. ... Qxa2 2. Qb5+ Ke7 3. Qxb7+ Ke6
10-> 38.34 0.75 1. ... Qxa2 2. Qb5+ Ke7 3. Qxb7+ Ke6
11 1:56 -- 1. ... Qxa2
11-> 3:52 0.00 1. ... Qxa2 2. Rxb7 Qa1+ 3. Ke2 Qa2+
12-> 5:40 0.00 1. ... Qxa2 2. Rxb7 Qa1+ 3. Ke2 Qa2+
13 14:20 0.00 1. ... Qxa2 2. Rxb7 Qa1+ 3. Ke2 Qa2+
4. Ke1
time=15:00 cpu=201% mat=1 n=200279716 fh=94% nps=222313
ext-> checks=17346770 recaps=346224 pawns=76289 1rep=1370639
thrt:75787
predicted=0 nodes=200279716 evals=22205573
endgame tablebase-> probes done=0 successful=0
SMP-> split=3170 stop=483 data=11/64 cpu=30:11 elap=15:00
As can be seen Crafty plays not better. In fact Crafty plays very "human-like".
The blunder Qxb2 (Qxb7) seems to be immortal. Kurt Richter writes in his Book
"Der Schachpraktiker" 1948 the following:
Unsterbliche Fehler
Gegen Fines Fehler-Theorie spricht unter anderem
die Tatsache, dass die Fehler unsterblich sind
und sich immer wiederholen. Wir führen aus dem
reichen Material nur ein Beispiel an: das Schlagen
auf b2 (bzw. b7) mit der Dame.
1862(Breslau). Dr. Tarrasch - v. Scheve
1913(Wien). Schenkeln - Schlechter
1922(Wien). Grünfeld - Bogoljubow
1935(Moskau). Botwinnik - Spielmann
1948(Essen). Schmid - Sahlmann
Translation from German to English done by
http://babelfish.altavista.digital.com/cgi-bin/translate?
Unsterbliche error
Against Fines error theory speaks among other things
the fact that the errors are unsterblich and always
repeat themselves. We state one example from the rich
material only: striking on b2 (or b7) with the lady.
1862(Breslau). Dr. Tarrasch - v. Scheve
1913(Wien). Thighs - bad
1922(Wien). Green field - Bogoljubow
1935(Moskau). Botwinnik - play man
1948(Essen). Schmid - Sahlmann
Even Bogoljubow and Spielmann did that blunder, so why not
Hiarcs, Crafty, etc.
Kind regards
Bernhard
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