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Subject: Re: Test position:Colle-O´Hanlon;Nice,1930 [13...Kg6 or 13...Kg8]

Author: Dann Corbit

Date: 18:22:44 03/13/00

Go up one level in this thread


On March 13, 2000 at 21:15:23, Pete Galati wrote:
>On March 13, 2000 at 20:50:35, Dann Corbit wrote:
>>On March 13, 2000 at 19:57:06, Pete Galati wrote:
>>[snip]
>>>[-]r1bqr3/pp1n1ppk/3bp3/6N1/3p4/2P5/PP3PPP/R1BQR1K1 b - -
>>
>>This is actually a *very* interesting test position.
>>
>>Kg8 seems to score very well initially, but rapidly drops in value.
>>By ply 11, Kg6 goes nuts with a fail high.
>>
>>I wonder if any programs can see Kg6 before ply 11 because of extensions or
>>whatever.
>>
>>Indeed, a clever test position.
>
>I have not tried to run it past Crafty yet, but with all the time I let Phalanx
>look at it (the curse of the slow computer) it never got near 11, and K-Kt3 was
>nowhere on it's mind.
>
>setting position
>rnbqkbnr/pppppppp/////PPPPPPPP/RNBQKBNR/w
>
>  +---+---+---+---+---+---+---+---+
>  | *R|   | *B| *Q| *R|   |   |   |
>  +---+---+---+---+---+---+---+---+
>  | *P| *P|   | *N|   | *P| *P| *K|
>  +---+---+---+---+---+---+---+---+
>  |   |   |   | *B| *P|   |   |   |
>  +---+---+---+---+---+---+---+---+
>  |   |   |   |   |   |   | N |   |
>  +---+---+---+---+---+---+---+---+
>  |   |   |   | *P|   |   |   |   |
>  +---+---+---+---+---+---+---+---+
>  |   |   | P |   |   |   |   |   |
>  +---+---+---+---+---+---+---+---+
>  | P | P |   |   |   | P | P | P |
>  +---+---+---+---+---+---+---+---+
>  | R |   | B | Q | R |   | K |   |
>  +---+---+---+---+---+---+---+---+   Black to move
>
>  3    204    11      888  Kh7-g8  Qd1xd4  Qd8-e7
>  3 ->   0:00.16     1050   0 turns
>  4    175    33     3556  Kh7-g8  Qd1xd4  Nd7-e5  Bc1-f4
>  4 ->   0:00.44     4259   0 turns
>  5    196   154    16943  Kh7-g8  Qd1-h5  Qd8-f6  Qh5-h7  Kg8-f8  Qh7-h5
>  5 ->   0:01.70    17755   0 turns
>  6    154   401    39634  Kh7-g8  Qd1-h5  Qd8-f6  Qh5-h7  Kg8-f8  Qh7-h5
>                           Kf8-e7  Pc3xd4
>  6 ->   0:05.16    50327   0 turns
>  7    165  1148   129794  Kh7-g8  Qd1-h5  Qd8-f6  Qh5-h7  Kg8-f8  Ng5-e4
>                           Qf6-e5  Pf2-f4
>  7 ->   0:12.80   146215   0 turns
>  8    165  2191   249234  Kh7-g8  ??
>  8     61  3746   462962  Kh7-g8  Qd1-h5  Qd8-f6  Qh5-h7  Kg8-f8  Ng5-e4
>                           Qf6-e5  Pf2-f4  Qe5-d5  Ne4xd6  Qd5xd6  Qh7-h8
>                           Kf8-e7  Qh8xg7
>  8 ->   2:32.03  1684465   0 turns
>  9     59 20092  2290700  Kh7-g8  Qd1-h5  Qd8-f6  Qh5-h7  Kg8-f8  Ng5-e4
>                           Qf6-e5  Pc3xd4  Qe5-a5  Bc1-g5
>  9     63 105891 11390294  Kh7-g6  Re1-e4  Pd4xc3

This is the move I was looking for, right here!  It is also the move that was
played in the actual game.  Black lost, but I don't think this move was the
reason.

>  9 ->  17:41.38 11420666   1 turn
> 10 ->  58:40.28 38575472   0 turns
>Depth=10, Value=63, Time=3520.28, Last turn=1058.91, Nodes=38575472, N/s=10958
>PV = Kh7-g6  Re1-e4  Pd4xc3



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