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Subject: Re: If Black could move first: Does 1...Na3 win quickly?

Author: Uri Blass

Date: 06:24:52 02/03/02

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On February 03, 2002 at 09:11:09, Eelco de Groot wrote:

>On February 02, 2002 at 16:19:36, Jeremiah Penery wrote:
>
>>On February 02, 2002 at 15:51:24, Mike S. wrote:
>>
>>>[D]RNBQKBNR/PPPPPPPP/8/8/8/8/pppppppp/rnbqkbnr b - - 0 1
>>>Sensational results! Obviously, 1...Na3 is a quick win.
>>
>>The position you have set up is known as Wild5 on the chess servers, except with
>>a different side to move.  Computers pretty much suck at evaluating this, since
>>there will quickly be many queens on the board.  It may be that in this case
>>black wins, but I wouldn't trust Fritz in this type of position for even a
>>second.
>
>
>I get the following after a night running:
>
>[D]RNBQKBNR/PPPPPPPP/8/8/8/8/pppppppp/rnbqkbnr b - -
>
>Rebel Engine for ECTool. (c) Ed Schröder
>
>Engine version   :  REBEL CENTURY 2
>Rebel personality :  "Personality Q5T"
>Opening book file :  RebelC.mvs
>Hash table size  :  4 MB
>Analysis mode   :  Analyzing next move
>Refresh interval : 500 ms
>
>Game begin
>
>00:00  08.00  1.63  1..Nc3 2.Nf6 b1=Q 3.g8=Q bxb6 4.Bh6 Rb1
>00:00  09.00  1.63  1..Nc3 2.Nf6 b1=Q 3.g8=Q bxb6 4.Bh6 Rb1
>00:01  10.00  1.74  1..Nc3 2.Nf6 b1=Q 3.g8=Q Ba3 4.Bh6 c1=Q
>00:05  11.00  1.61  1..Nc3 2.Nf6 b1=Q 3.g8=Q Nb5 4.Bh6 Nd6+
>00:15  12.00  2.08  1..Nc3 2.Nf6 b1=Q 3.g8=Q Nb5
>00:49  13.00  2.30  1..Nc3 2.Nf6 Nb5 3.Ne4 b1=Q 4.g8=Q bxb4
>03:02  14.00  3.57  1..Nc3 2.Nf6 Nb5 3.Ne4 b1=Q 4.Na6 Ba3
>05:51  15.00  3.11  1..Nc3 2.Nf6 Nb5 3.Ne4 b1=Q 4.g8=Q bxb4
>15:13  16.00  3.57  1..Nc3 2.Nf6 Nb5 3.Ne4 b1=Q 4.Na6 Ba3
>04:52  17.00  4.72  1..Nc3 2.Nf6 Nb5 3.Ne4 b1=Q 4.Na6 Ba3
>31:42  18.00  4.00  1..Nc3 2.Nf6 Nb5 3.Ne4 b1=Q 4.Na6 Ba3
>
>19 ply looked like a fail-high but no more patience for that.
>
>It could be that the evaluation is off but that the computer is still hard to
>beat by humans. I found old Crafty-list mail from Michel Langeveld saying that
>he had much success with Crafty at Wild5:
>
>
>---------------
>Modification to let Crafty play Wild 5, 16-07-00
>
>I already posted this on CCC. But maybe not everybody reads that. It's a
>very small modifcation...
>
>I registered a new Crafty on ICC called Wild5Crafty.
>It hasn't lost a single time yet :-P. So which expert can let it flame.


2 questions:

1)How many comp-comp games did it play?
2)How many draws and how many wins did it get?

>
>Ofcourse Crafty's evaluation can be more optimized for Wild 5, but why
>making things stronger if nobody can win already from this...

I doubt if nobody can win against it.
I guess that you did not try comp-comp games.

If I remember correctly Junior could beat it in engine-engine games under
chessbase gui but I am not sure if I remember correctly.

Uri



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