Author: Moritz Berger
Date: 08:42:41 05/18/98
Go up one level in this thread
On Mon, 18 May 1998 13:18:19 GMT, "Chris Whittington"
<chrisw@cpsoft.demon.co.uk> wrote:
>>Program / Ne5 / b6 / g4
>>-----------------------------------
>>1. MCP 7.1 / - / 12:27 / 03:29
>>2. Fritz 5 / - / 05:39 / 24:54
>>3. Hiarcs 6 / - / 10:57 / 15:44
>>4. Shredder 2 / 21:47 / 01:09:48 / 01:53:44
>>5. Rebel 9 / 35:54 / 51:44 / not tested
>>6. CSTal Paris / - / 01:20:46 / 02:08:42
>
>[snip]
>
>>CSTal Paris version (zip archive dated April 1998):
>>
>>Of special interest when judging the performance of Chess System Tal
>>might be the fact that quiescence search (e.g. Fritz peaked out at about
>>36 ply in the q-search at 12 ply main search depth) and king safety play
>>important roles here... So I don't quite agree with the following
>>statement (left anonymous to protect the guilty):
>
>
>Moritz is more interested in having a go at me via my program, but never
>mind :)
>
><g>
>
>>> However, Hsu's GMs wouldn't have needed CSTal to tell him
>>> that what was lacking in the DB program, as in any
>>> materialistic-Hyatt style program, was dynamic stuff to
>>> deal with that which the quiescent-seeking-Hyattian-nonsense
>>> tried to ignore. Namely positions leading to mating attacks. Duh.
>>
>>BTW: Crafty plays b6 after a couple of seconds, just check Bob's post on
>>this ... :-)
>
>
>Yes, I did, Moritz. I did CHECK it :))))))))))))))))))))
I am still interested in having a go at your program - motivated by your
statements about "paradigms" and your opinion about Bob's performance I
quoted above: The fact remains that CSTal sucks *big time* in this
position.
Here's the logfile for Crafty 15.7 on the correct position and the same
machine on which CSTal needed 80 minutes on to find a move that doesn't
lead to it being checkmated: WCrafty 15.7 is still 6.4 times faster than
Chess System Potemkin (named after field marshal Grigory Aleksandrovich)
in this position, even if we assume that Crafty doesn't play 26.b6 after
6 seconds (but after 12:36) ...
Crafty v15.7
White(1): setboard r1bq1rk1/8/6p1/1PN2n2/p2pB2p/3Nb3/P5PP/1R1Q1R1K w - -
+---+---+---+---+---+---+---+---+
8 | *R| | *B| *Q| | *R| *K| |
+---+---+---+---+---+---+---+---+
7 | | | | | | | | |
+---+---+---+---+---+---+---+---+
6 | | | | | | | *P| |
+---+---+---+---+---+---+---+---+
5 | | P | N | | | *N| | |
+---+---+---+---+---+---+---+---+
4 | *P| | | *P| B | | | *P|
+---+---+---+---+---+---+---+---+
3 | | | | N | *B| | | |
+---+---+---+---+---+---+---+---+
2 | P | | | | | | P | P |
+---+---+---+---+---+---+---+---+
1 | | R | | Q | | R | | K |
+---+---+---+---+---+---+---+---+
a b c d e f g h
White(1): hash=48m
White(1): hashp=10m
White(1): time 1/9999
clearing hash tables
time surplus 0.00 time limit 9999:00 (4999:30)
depth time score variation (1)
10-> 3:44 5.54 1. Bxa8 Ng3+ 2. hxg3 hxg3 3. Rxf8+
Qxf8 4. Bd5+ Kh8 5. Bf3 Qe7 6. Nf4
Qh4+ 7. Nh3 Bxh3 8. Nxa4
11 4:08 -- 1. Bxa8
11 6:20 0.56 1. Bxa8 Ng3+ 2. hxg3 hxg3 3. Bd5+ Kh7
4. Nf4 Bxf4 5. Rf3 Qxd5 6. Rc3 Qh5+
7. Qxh5+ gxh5 8. Rd3 Bf5
11 12:36 ++ 1. b6!!
11 16:29 3.16 1. b6 Rb8 2. b7 Ng3+ 3. hxg3 Rxf1+
4. Qxf1 hxg3 5. Nf4 Be6 6. Ncxe6 Qh4+
7. Nh3 Qxe4 8. Qf7+ <HT>
11 32:55 ++ 1. g4!!
11 36:19 3.88 1. g4 Ra7 2. gxf5 Bxf5 3. Bxf5 Rxf5
4. Rxf5 gxf5 5. Qf3 Qa8 6. Qxa8+ Rxa8
7. b6 a3 8. Kg2
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