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Subject: Re: hard one, given a bit longer than......1½ hours AMD 3200 64

Author: Uri Blass

Date: 08:47:28 11/04/05

Go up one level in this thread


On November 04, 2005 at 11:33:36, Uri Blass wrote:

>On November 04, 2005 at 08:51:06, Chris Taylor wrote:
>
>> [d] rn3b1r/p5pp/2p2nk1/4q3/4p1b1/1QN5/PPPP1PPP/R1B1KB1R w KQ - am Qb7
>>
>>
>>Analysis by Fruit 2.2.1:
>>
>>1.Bc4 Bc5
>>  ³  (-0.52)   Depth: 1/6   00:00:00
>>  µ  (-0.74)   Depth: 2/12   00:00:00
>>1.Be2 Bxe2 2.Nxe2
>>  ³  (-0.68)   Depth: 2/12   00:00:00
>>1.Qb7 Bc5 2.h3 Bc8 3.Qxa8 Qc7 4.d4 Bb7 5.Bf4 Qd7 6.Qxb8 Rxb8 7.dxc5 Rf8 8.Be2
>>Nd5
>>  +-  (2.59)   Depth: 2/12   00:00:00
>>  =  (0.04)   Depth: 15/53   00:04:15  153550kN
>>1.Bc4 Qe8 2.Ne2 Bxe2 3.Bxe2 Nbd7 4.0-0 Bc5 5.Qh3 Qe5 6.c3 Rhe8 7.b4 Bxb4 8.Re1
>>Bd6 9.d4 Qf5 10.Qh4
>>  =  (0.13)   Depth: 15/53   00:05:39  205403kN
>>  =  (-0.20)   Depth: 18/56   00:36:32  1384484kN
>>1.Qb7 Bc5 2.Qxa8 Rf8 3.h3 Bxf2+ 4.Kxf2 Qf4+ 5.Kg1 Nh5 6.Qxa7 Qxf1+ 7.Kh2 Qf4+
>>8.Kg1 Qf1+
>>  =  (0.00)   Depth: 18/61   00:46:31  1778423kN
>>  =  (0.00)   Depth: 18/61   00:46:31  1778423kN
>>
>>(Taylor, Nottingham 04.11.2005)
>
>fruit cannot see it at depth 18 because you use history threshold=70
>
>use uri personality(history threshold=50) and fruit is going to see the problem
>at depth 18
>
>New game,
>rn3b1r/p5pp/2p2nk1/4q3/4p1b1/1QN5/PPPP1PPP/R1B1KB1R w KQ - 0 1
>
>Analysis by Fruit 2.2.1:
>
>1.Bc4
>  ³  (-0.52)   Depth: 1/6   00:00:00
>1.Bc4 Bc5
>  µ  (-0.74)   Depth: 2/12   00:00:00
>1.Be2 Bxe2 2.Nxe2
>  ³  (-0.68)   Depth: 2/12   00:00:00
>1.Qb7 e3 2.Bd3+ Kh6 3.Qxa8 exf2+ 4.Kxf2
>  +-  (2.59)   Depth: 2/12   00:00:00
>1.Qb7 e3 2.Bd3+ Kh6 3.Qxa8 exf2+ 4.Kxf2
>  +-  (2.59)   Depth: 3/12   00:00:00
>1.Qb7 Bc5 2.Qxa8 Rd8
>  +-  (2.69)   Depth: 4/18   00:00:00
>1.Qb7 Na6 2.Bxa6 Bc5 3.Qxc6
>  +-  (2.23)   Depth: 5/19   00:00:00
>1.Qb7 Na6 2.Bxa6 Bc5 3.0-0 Rac8
>  +-  (2.25)   Depth: 6/21   00:00:00  23kN
>1.Qb7 Na6 2.Bxa6 Bc5 3.0-0 Bd6 4.g3
>  +-  (2.16)   Depth: 7/21   00:00:00  50kN
>1.Qb7 Na6 2.Bxa6 Bd6 3.Qxc6 Qc5 4.Qa4 Rhe8
>  +-  (2.23)   Depth: 8/26   00:00:00  145kN
>1.Qb7 Na6 2.Bxa6 Bc5 3.0-0 Bd7 4.Bc4 Rab8 5.d4 Rxb7 6.dxe5
>  +-  (2.07)   Depth: 9/26   00:00:00  318kN
>1.Qb7 Na6 2.Bxa6 Bc5 3.0-0 Bd7 4.d4 Bxd4 5.Bc4 Ng4
>  +-  (2.08)   Depth: 10/31   00:00:01  912kN
>1.Qb7 Na6 2.Bxa6 Bc5 3.0-0 Bd7 4.Bc4 Rab8 5.Qa6 Ng4 6.g3
>  +-  (1.97)   Depth: 11/33   00:00:04  2460kN
>1.Qb7 Na6 2.Bxa6 Bc5 3.0-0 Bd7 4.Qb3 Rab8 5.Qa4 Rb4 6.Qa3 Kf7
>  +-  (1.73)   Depth: 12/37   00:00:12  7203kN
>1.Qb7 Bc5 2.Qxa8 Rf8 3.d4 exd3+ 4.Be3 Bxe3 5.Bxd3+ Kh6 6.0-0 Bd4 7.Rae1 Qc7
>8.Kh1 Bxc3 9.bxc3
>  ±  (0.83)   Depth: 13/42   00:00:59  36362kN
>1.Qb7 Bc5 2.Qxa8 Rf8 3.d4 Bxd4 4.Ne2 Nd5 5.Nxd4 Qxd4 6.f3 Nb4 7.Bd2 Nxc2+ 8.Kd1
>Nxa1 9.fxg4
>  =  (0.23)   Depth: 14/47   00:02:08  78297kN
>1.Qb7 Bc5 2.h3 Bc8 3.Qxa8 Qc7 4.d4 Bb7 5.Bf4 Qd7 6.Qxb8 Rxb8 7.dxc5 Rf8 8.Be2
>Nd5
>  =  (0.04)   Depth: 15/63   00:05:59  221381kN
>1.Bc4 Qe8 2.Ne2 Bxe2 3.Bxe2 h5 4.0-0 Kh7 5.d4 Nbd7 6.Bg5 Qg6 7.h4 Rb8 8.Qc3 Be7
>  =  (0.15)   Depth: 15/63   00:08:08  298791kN
>1.Bc4 Qe8 2.Ne2 Bxe2 3.Bxe2 h6 4.0-0 Kh7 5.d4 Bd6 6.Bd2 Nbd7 7.Qh3 Rb8 8.Rab1
>Qg6 9.Bc4
>  =  (-0.11)   Depth: 16/63   00:13:12  464257kN
>1.Qb7 Bc5 2.Qxa8 Rf8 3.h3 Bxf2+ 4.Kxf2 Nh5+ 5.Kg1 Qd4+ 6.Kh2 Qd6+ 7.Kg1 Qd4+
>  =  (0.00)   Depth: 16/63   00:15:35  552797kN
>1.Qb7 Bc5 2.Qxa8 Rf8 3.h3 Bxf2+ 4.Kxf2 Nh5+ 5.Kg1 Qd4+ 6.Kh2 Qd6+ 7.Kg1 Qd4+
>  =  (0.00)   Depth: 17/101   00:23:17  843019kN
>1.Qb7 Bc5 2.h3 Bc8 3.Qxa8 Qc7 4.d3 Bb7 5.Bf4 Bxf2+ 6.Kd1 Qd7 7.Qxb8 Rxb8 8.Bxb8
>Ba6 9.Ne2 Kf7 10.Nc1 Nd5 11.Nb3 Ne3+ 12.Kc1 exd3 13.cxd3
>  µ  (-1.10)   Depth: 18/101   01:23:53  3191528kN
>
>(,  04.11.2005)

and it finds the following line(another example when fruit Uri is better than
default fruit because I guess that default fruit cannot find it on 2 hours in my
hardware).

1.Bc4 Qe8 2.Ne2 Bxe2 3.Bxe2 h6 4.d4 Kh7 5.Qb7 Nbd7 6.Qxc6 Rc8 7.Qa4 Bd6 8.c3 Qe6
9.Qxa7 Ra8 10.Qb7
  =  (-0.20)   Depth: 18/101   01:47:11  4119329kN

(,  04.11.2005)

Uri



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