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Subject: Re: I will replay the game from move 19. Today

Author: Jorge Pichard

Date: 10:49:07 04/02/02

Go up one level in this thread


On April 02, 2002 at 12:21:28, Uri Blass wrote:

>On April 02, 2002 at 12:11:08, Uri Blass wrote:
>
>>On April 02, 2002 at 12:06:48, Uri Blass wrote:
>>
>>>On April 02, 2002 at 11:03:12, Jorge Pichard wrote:
>>>
>>>>On April 02, 2002 at 09:16:06, Uri Blass wrote:
>>>>
>>>>>On April 01, 2002 at 20:35:29, Jorge Pichard wrote:
>>>>>
>>>>>>Here is a game where both programs NOT knowing what to do in the opening, since
>>>>>>they are playing without Opening Books Managed to play a decent game of the
>>>>>>Orangutan or Sokolsky Opening. Again I forced the first move 1.b4.... tomorrow I
>>>>>>will let both programs select their own first move. Uri needs to make an opening
>>>>>>Book for his program Movei.
>>>>>
>>>>>I think that there are more important things and movei
>>>>>did not get a losing position out of the opening.
>>>>>
>>>>>movei even could get a better position and win a pawn by 19.b5
>>>>>
>>>>>I find it strange that movei searched only to depth 2 when
>>>>>it played 19.Bf3 and I will try to find the problem(if it is a bug in my program
>>>>>or maybe the celeron was slowed down for some reason).
>>>>
>>>>Yes it is strange that it only searched to depth 2; I will replay the game from
>>>>move 19.... today.
>>>>
>>>> Pichard
>>>
>>>The problem continued also at moves 20 and 21 and was only
>>>fixed later.
>>>
>>>It did not do a stupid tactical error in these moves
>>>but it is possible that it could find better moves with deeper search.
>>>
>>>I checked only move 19 and my program considers Rgf1
>>>to be the best move at depthes 7,8,9
>>>
>>>Another note is that I found no time control that my program
>>>play both 2.Bb2 and both 4.Bc3 and on my computer
>>>at time control that is slow enough to play 2.Bb2
>>>my program always play 4.h3 and the only explanation that I can find
>>>for both moves is assuming that the celeron's speed is not proprtional to my
>>>program's speed.


I will also check if this problem only occurs using the Arena 0.78 GUI, I will
also test the outcome using winboard.

Pichard.


>>>I hope that there will be no problem in the game because my tests were only from
>>>the opening position and I am afraid of a bug in
>>>the time management if my program does not know correctly the number of moves
>>>for the time control.
>>>
>>>My program usually gets this number in the beginning of the game
>>>and it is reducing it by 1 every time that the computer is
>>>to move.
>>>
>>>It can cause a wrong assumption about the number of moves
>>>when the game does not start from move 1.
>>>
>>>Uri
>>
>>I analyze the move that my program likes Rgf1 on my pIII800
>>and I find that it also wins a pawn
>>
>>Here is yace only material's analaysis(pawn=0.8,knight=3.4,bishop=3.5)
>>
>>movei00_6 Celeron 433 Mhz - Chess Tiger 14.9 Beta2 Handsp
>>2kr3r/1ppnbppp/p3p3/4P2n/1PNP4/2B3P1/P1P1K1BP/1R3R2 b - - 0 1
>>
>>Analysis by Yace 0.99.56:
>>
>>19...b5 20.Nd2
>>  =  (-0.10)   Depth: 4   00:00:00
>>19...Nxe5 20.dxe5
>>  +-  (2.70)   Depth: 4   00:00:00
>>19...Rdf8
>>  =  (0.10)   Depth: 4   00:00:00
>>19...Rdf8 20.a3
>>  =  (0.10)   Depth: 4   00:00:00
>>19...Rdf8 20.a3 Bg5
>>  =  (0.10)   Depth: 4   00:00:02
>>19...Rdf8 20.a3 Bg5 21.Bb2
>>  =  (0.10)   Depth: 4   00:00:06
>>19...Rdf8 20.g4 Nxe5 21.dxe5 Bxb4
>>  ²  (0.50)   Depth: 5   00:00:15  13kN
>>19...Rdf8 20.g4 Nxe5 21.dxe5 b6
>>  +-  (1.50)   Depth: 5   00:00:15  13kN
>>19...Rdf8 20.g4 b5 21.Nd2 Nxe5 22.dxe5
>>  +-  (1.50)   Depth: 5   00:00:17  15kN
>>19...Bg5 20.g4 b5 21.Nd2
>>  +-  (1.49)   Depth: 5   00:00:27  22kN
>>19...Bg5 20.Rxf7 b5 21.Nd2 Rdf8
>>  ±  (0.90)   Depth: 5   00:00:34  29kN
>>19...f5 20.g4 fxg4 21.Nd2
>>  ±  (0.89)   Depth: 5   00:01:03  48kN
>>19...f5 20.exf6 gxf6 21.Nd2 b5 22.g4
>>  =  (0.10)   Depth: 5   00:01:06  54kN
>>19...f5 20.exf6 gxf6 21.Nd2 b5 22.g4 Ng7
>>  =  (0.10)   Depth: 6   00:01:14  80kN
>>19...f5 20.exf6 gxf6 21.Nd2 b5 22.g4 Ng7 23.a3
>>  =  (0.10)   Depth: 7   00:01:21  159kN
>>19...f5 20.exf6 gxf6 21.Nd2 b5 22.g4 Ng7 23.a3 Kb8
>>  =  (0.10)   Depth: 8   00:01:22  231kN
>>19...f5 20.exf6 gxf6 21.Nd2 b5 22.g4 Ng7 23.a3 Kb8 24.Kf2
>>  =  (0.10)   Depth: 9   00:01:23  731kN
>>19...f5 20.exf6 Nhxf6 21.Bh3 b5 22.Na5 Ne4 23.Bb2 Rde8 24.Bxe6 Bxb4
>>  =  (0.10)   Depth: 10   00:01:29  4393kN
>>19...f5 20.exf6 Nhxf6 21.Bh3 b5 22.Na5 Ne4 23.Bb2 Rde8 24.Nc6 Bg5 25.Kd3
>>  =  (0.10)   Depth: 11   00:01:43  11232kN
>>19...f5 20.exf6 Nhxf6 21.Bh3 b5 22.Na5 Ne4 23.Bb2 Rde8 24.Nc6 Bg5 25.Kd3 Ndf6
>>  =  (0.10)   Depth: 12   00:02:19  29732kN
>>19...f5 20.exf6 Nhxf6 21.Bh3 b5 22.Na5 Rde8 23.Ba1 Bd6 24.Nc6 Nb8 25.Nxb8 Kxb8
>>26.Kd3
>>  =  (0.10)   Depth: 13   00:04:01  82131kN
>>19...f5 20.Na5 c6 21.b5 axb5 22.a4 bxa4 23.Rxb7 c5 24.d5 exd5 25.e6 Rde8
>>26.exd7+ Kd8
>>  ²  (0.50)   Depth: 14   00:07:55  198418kN
>>19...f5 20.Na5 c6 21.b5 axb5 22.a4 bxa4 23.Rxb7 c5 24.d5 Bg5 25.dxe6 Nb8
>>26.Rxb8+ Kxb8 27.Nc6+ Kc8
>>  ±  (0.90)   Depth: 14   00:09:26  244587kN
>>
>>(Blass, Tel-aviv 02.04.2002)
>>
>>Uri
>
>And here is analysis of Deep Fritz
>It seems that palm tiger had a losing position
>after 18 moves
>(not that it means that my program could win and
>I do not know if it could win).
>
>movei00_6 Celeron 433 Mhz - Chess Tiger 14.9 Beta2 Handsp
>[D]2kr3r/1ppnbppp/p3p3/4P2n/1PNP4/2B3P1/P1P1K1BP/1R3R2 b - - 0 1
>
>Analysis by Deep Fritz:
>
>19...Nxe5--
>  +-  (2.00)   Depth: 1/3   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...Rhf8 20.Bf3 g6 21.Bxh5
>  ±  (1.06)   Depth: 3/11   00:00:00
>19...f5!
>  ±  (0.94)   Depth: 3/11   00:00:00  1kN
>19...f5! 20.Bf3
>  ±  (0.87)   Depth: 3/11   00:00:00  1kN
>19...f5 20.exf6 Nhxf6 21.Rbe1
>  ±  (0.97)   Depth: 4/16   00:00:00  2kN
>19...f5 20.Bf3 g6 21.Bxh5 gxh5 22.a3
>  ±  (0.97)   Depth: 5/11   00:00:00  6kN
>19...f5 20.g4 fxg4 21.Rf7 Bg5 22.Rbf1
>  ±  (1.06)   Depth: 6/15   00:00:00  18kN
>19...f5 20.Ne3 Rhf8 21.Bf3 g6 22.Bxh5 gxh5
>  ±  (0.91)   Depth: 7/19   00:00:00  94kN
>19...f5 20.Bf3 g6 21.Bxh5 gxh5 22.d5 exd5 23.e6 Rhe8 24.exd7+ Kxd7
>  ±  (1.16)   Depth: 8/22   00:00:00  203kN
>19...f5 20.Bf3 g6 21.Bxh5 gxh5 22.d5 exd5 23.e6 Rhe8
>  ±  (1.16)   Depth: 9/25   00:00:01  467kN
>19...f5 20.b5 axb5 21.Rxb5 b6 22.a4 g6 23.a5 bxa5 24.Bb7+ Kb8 25.Bxa5
>  ±  (1.31)   Depth: 10/29   00:00:02  1277kN
>19...f5 20.b5 axb5 21.Rxb5 b6 22.a4 g6 23.a5 bxa5 24.Rxa5 Nb8 25.d5
>  ±  (1.31)   Depth: 11/32   00:00:07  4440kN
>19...f5--
>  +-  (1.62)   Depth: 12/30   00:00:12  6579kN
>19...f5--
>  +-  (1.62)   Depth: 12/31   00:00:17  9582kN
>19...f5 20.b5 axb5 21.Rxb5 b6 22.a4 g6 23.a5 bxa5 24.Nxa5 Nb6
>  +-  (1.66)   Depth: 13/34   00:00:51  29658kN
>19...f5 20.b5 axb5 21.Rxb5 b6 22.a4 g6 23.a5 bxa5 24.Bb7+ Kb8 25.Bxa5
>  +-  (1.69)   Depth: 14/37   00:02:39  95764kN
>19...f5--
>  +-  (2.00)   Depth: 15/40   00:04:13  157480kN
>19...f5-- 20.b5 axb5 21.Rxb5 b6 22.a4 g6 23.a5 bxa5 24.Bxa5 Rdg8 25.Rb7
>  +-  (2.03)   Depth: 15/40   00:06:08  236434kN
>
>(Blass, Tel-aviv 02.04.2002)
>
>Uri



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