Author: Jorge Pichard
Date: 05:02:32 04/10/02
Go up one level in this thread
On April 10, 2002 at 01:37:46, Uri Blass wrote:
>On April 09, 2002 at 20:01:37, Jorge Pichard wrote:
>
>>As I promised I decided to retract the 33. Qg7..Bd7? since I figured out the
>>correct amount of Hashtable to use for Sjeng in order to avoid the blunder.
>>Sjeng played the correct move after 33. Qg7.Rd4! but CTP 14.9 knowledge was to
>>much for the calculating power of Sjeng. This was a good lesson in which most
>>people always consider the Kns or Fritzmark without really taking into
>>consideration the Chess Knowledge of each program.
>
>
>I still think that there is a problem.
>
>
>I give the analysis of the programmer again when sjeng never liked to play Rd4
>and got depth 11.
It could be that there is still serious problem with the Arena 0.78, but if you
look at the analysis of the previous move 32 and on move 33 the chosen move by
Sjeng 12.11 using Arena 0.78 was identical, I did noticed that in depth 7 up to
9 it was considering 33.....Bd5, and it then switched to 33.....Rd4 when it
reached deth 12. Here is the Analysis:
32. Re1 Qxc4
{(Qd3xc4 Qh7g7 Rd8d4 Qg7e5 Rd4d6 Re1c1 Qc4d4 Qe5xc5 Qd4xc5 Rc1xc5 Rd6c6 Rc5xc6
b7xc6 Bf4e3 a7a5) 0.26/9 49}
33. Qg7 Rd4
{(Rd8d4 Qg7e5 Rd4d6 Re1c1 Qc4d4 Qe5xc5 Qd4xc5 Rc1xc5 Rd6c6 Rc5xc6 b7xc6 Bf4e3
a7a5) 0.26/7 12}
What I could do is continue Sjeng under Fritz 7 Gui or Winboard, but I will
still continue the game from move 33. Qg7....? etc.......
Pichard.
>I also suspect that the only fair way is to replay the game from the first move
>and to delete learning files if there are learning files because programs learn
>from previous search and pondering also can help because sjeng predicted 33.Qg7.
>
>Maybe Gian can also send a special version that never play unless it gets at
>least 200000 nodes per seconds for testing.
>
>I do not know the speed of your celeron but Gian can get an estimate for it
>based on the number of nodes per second in the initial position.
>
>Sjeng: go
>Middlegame phase.
>Time for move : 1000000
> 2 267 0 117 Bd5 ??
> 2 267 0 442 Bd5 Rd2
> 2 267 1 504 Bd5 Rd2
> 3 251 1 1378 Bd5 g4 Be4 gxf5 Bxf5
> 3 252 1 3119 Bd7 Qe5 e6
> 3 252 1 4481 Bd7 Qe5 e6
> 4 202 2 4759 Bd7 ??
> 4 220 3 10221 Qd5 Qe5 Qxe5 Bxe5
> 4 220 4 18812 Qd5 Qe5 Qxe5 Bxe5
> 5 170 5 24803 Qd5 ??
> 5 80 12 66681 Qd5 Rd2 Qb3 Rxd8+ Kxd8 Qe5 Bd5 Qxf5
> 5 171 12 66733 Bd7 !!
> 5 164 14 79598 Bd7 Rd2 Be8 Rxd8+ Kxd8 Rd1+ Kc8 Qf8 Qf7
> 5 170 17 95238 b6 Qe5 Rd6 Rd2 Rxd2 Bxd2
> 5 170 17 95264 b6 Qe5 Rd6 Rd2 Rxd2 Bxd2
> 6 120 18 100423 b6 ??
> 6 54 41 245262 b6 Qe5 Rd6 Rd2 Bd5 Qxf5+ e6
> 6 79 63 390563 Bd5 Qe5 Kd7 Rd2 Ke8 Qxf5 Nf6
> 6 79 70 435810 Bd5 Qe5 Kd7 Rd2 Ke8 Qxf5 Nf6
> 7 29 129 826151 Bd5 ??
> 7 0 250 1668616 Bd5 Rxe7 Nxe7 Qxe7 Rd7 Qf8+ Rd8 Qe7 <Rd7> <Qf8+>
><Rd8> <Qe7> <Rd7> <Q f8+> <Rd8>
> 7 30 300 2008576 Rd3 !!
> 7 31 329 2223230 Rd3 Qe5 Rd6 Rd2 Bd7 Rxd6 exd6 Qxd6
> 7 31 329 2223264 Rd3 Qe5 Rd6 Rd2 Bd7 Rxd6 exd6 Qxd6
> 8 0 559 3722516 Rd3 Qf8+ Kd7 Qb8 b6 Qc7+ Ke8 Rfe2 Qd4+ Kh2 Qh8+ Kg1
>Qd4+ <Kh2> <Qh8+> <Kg1> <Qd4+> <Kh2> <Qh8+> <Kg1>
> 8 30 874 5681147 a6 Qb2 Rd7 Rc2 Qd5 Re5 Qd1+ Kf2 Bd5 Rxc5+
> 8 51 945 6176780 b6 Qe5 Rd6 Rd2 Bd7 Rxd6 exd6 Qxd6 Qd4+ Qxd4 cxd4
> 8 51 1001 6520424 b6 Qe5 Rd6 Rd2 Bd7 Rxd6 exd6 Qxd6 Qd4+ Qxd4 cxd4
> 9 21 1099 7184277 b6 Qe5 Rd6 Rd2 Bd5 Red1 Be4 Rxd6 exd6 Qxd6
> 9 21 1663 10890774 b6 Qe5 Rd6 Rd2 Bd5 Red1 Be4 Rxd6 exd6 Qxd6
>10 10 1966 12982662 b6 Qe5 Rd6 Rd2 Bd5 Qxf5+ Rd7 Kf2 e6 Qf8+ Rd8 Qf7
>10 10 3296 21142893 b6 Qe5 Rd6 Rd2 Bd5 Qxf5+ Rd7 Kf2 e6 Qf8+ Rd8 Qf7
>11 9 3949 25697271 b6 Qe5 Rd6 Rd2 Bd5 Qxf5+ Rd7 Kf2 Qb3 Red1 Qf3+ Ke1
>Nf6
>
>
>Uri
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