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Subject: Re: Big Extensions from Fruit 2.1

Author: Ernest Bonnem

Date: 10:22:36 10/25/05

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Sorry, Chuck, can't reproduce your data...
Was it a Fruit 2.1 with modified parameters?
What was the computer, the hash size?

for instance, there is no way I attain depth 13 in 1 sec (938 kN)!!!
(my computer XP2000+ 256MB hash)

On October 24, 2005 at 05:58:08, Chuck wrote:

>This may be purely trivial info, but I recently ran Fruit 2.1 on the position
>below and it turned the greatest extended depth I can recall ever seeing - the
>last depth is 19/83 ply. FWIW.
>
>[D] r1bqk1nr/pp1p1pbp/2n1p1p1/2p5/2B1PP2/2N2N2/PPPP2PP/R1BQK2R w KQkq - 0 1
>
>Analysis by Fruit 2.1:
>
>6.0-0
>  ±  (1.17)   Depth: 1/4   00:00:00
>6.0-0 Nf6
>  ±  (0.88)   Depth: 2/11   00:00:00
>6.0-0 Nge7 7.e5
>  ±  (1.17)   Depth: 3/11   00:00:00
>6.0-0 Nge7 7.d3 0-0
>  ²  (0.66)   Depth: 4/11   00:00:00
>6.0-0 Nge7 7.d3 d5 8.Bb5
>  ±  (0.82)   Depth: 5/13   00:00:00
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0
>  ²  (0.29)   Depth: 6/14   00:00:00  8kN
>6.0-0 Nge7 7.d3 0-0 8.Bb3 Qa5 9.Bd2
>  ²  (0.64)   Depth: 7/21   00:00:00  28kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 Kh8
>  =  (0.19)   Depth: 8/21   00:00:00  52kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 c4 9.Ba4 Qb6+ 10.d4 0-0
>  =  (0.20)   Depth: 9/23   00:00:00  100kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 Kh8 10.Qg3 Qd6
>  =  (0.21)   Depth: 10/24   00:00:00  187kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 Nd4 10.Ne5 Nec6 11.Qg3
>  ²  (0.28)   Depth: 11/32   00:00:00  444kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 Nd4 10.Ne5 f6 11.Nf3 Nec6
>  =  (0.09)   Depth: 12/32   00:00:01  531kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 Nd4 10.Ne5 f6 11.Nf3 Bd7 12.Be3
>  =  (0.19)   Depth: 13/32   00:00:01  938kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 b6 10.exd5 Nxd5 11.Ne5 Nxc3 12.Nxc6 Qd6
>13.Bd2
>  =  (0.18)   Depth: 14/34   00:00:07  4120kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 Nd4 10.Ne5 f6 11.Nf3 f5 12.e5 Bd7 13.Be3
>  =  (0.12)   Depth: 15/37   00:00:17  8563kN
>6.0-0 Nge7 7.d3 d5 8.Bb3 0-0 9.Qe1 Nd4 10.Ne5 f6 11.Nf3 f5 12.e5 Bd7 13.Be3 Nec6
>  =  (0.05)   Depth: 16/37   00:00:46  26469kN
>6.0-0 Nge7 7.d3 0-0 8.e5 d5 9.exd6 Nf5 10.Re1 Nxd6 11.Bb3 Bd7 12.Be3 Qa5 13.Qd2
>Nd4 14.Ne5
>  =  (0.03)   Depth: 17/50   00:26:05  977827kN
>6.0-0 Nge7 7.d3 0-0 8.e5 d5 9.exd6 Nf5 10.Bd2 Nxd6 11.Bb3 Qe7 12.Qe2 Bd7 13.Ne5
>Nd4 14.Qg4 Bf6 15.Nxd7 Qxd7
>  =  (0.00)   Depth: 18/60   01:06:36  2505441kN
>6.0-0 Nge7 7.d3 0-0 8.Bb3 d5 9.Bd2 c4 10.dxc4 dxe4 11.Nxe4 Bxb2 12.Rb1 Bg7
>13.Ba4 Nf5 14.Bxc6 bxc6 15.Bb4 Ne3 16.Qd3
>  =  (0.04)   Depth: 19/83   02:47:03  1482257kN
>
>Cheers,
>
>Chuck



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