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Subject: Re: What programs find the correct Qe4! from Leko-Kramnik rd 4 Linares 2000

Author: Robert Hyatt

Date: 08:29:16 03/06/00

Go up one level in this thread


On March 05, 2000 at 18:57:32, Jeremiah Penery wrote:

>On March 05, 2000 at 14:42:07, Mark Young wrote:
>
>>[D]1r4rk/6q1/3p4/pp1Rb2p/5pP1/P1P2Q1P/1P4B1/5RK1 w -
>>
>>
>>The best move here is 31. Qe4!. The move g4xh5? is a mistake.
>
>Modified Crafty 17.9, PII-300, 64 (48+16) MB hash
>
>    1     0.00   0.95   1. gxh5
>    1->   0.02   0.95   1. gxh5
>    2     0.02   0.73   1. gxh5 Qh6
>    2->   0.04   0.73   1. gxh5 Qh6
>    3     0.05   0.81   1. gxh5 Qh6 2. Kf2
>    3->   0.08   0.81   1. gxh5 Qh6 2. Kf2
>    4     0.11   0.78   1. gxh5 b4 2. cxb4 axb4 3. axb4 Rxb4
>    4->   0.16   0.78   1. gxh5 b4 2. cxb4 axb4 3. axb4 Rxb4
>    5     0.23   0.57   1. gxh5 Qa7+ 2. Kh1 Rg3 3. Qf2 Qg7
>    5->   0.30   0.57   1. gxh5 Qa7+ 2. Kh1 Rg3 3. Qf2 Qg7
>    6     0.67   0.49   1. gxh5 b4 2. cxb4 axb4 3. axb4 Rxb4
>                        4. Rf2 Rc4
>    6->   0.90   0.49   1. gxh5 b4 2. cxb4 axb4 3. axb4 Rxb4
>                        4. Rf2 Rc4
>    7     1.93   0.43   1. gxh5 Qh6 2. Qe2 Rg5 3. Rf2 b4 4.
>                        axb4 axb4
>    7->   2.34   0.43   1. gxh5 Qh6 2. Qe2 Rg5 3. Rf2 b4 4.
>                        axb4 axb4
>    8     4.15   0.24   1. gxh5 Qh6 2. Kf2 Rg3 3. Qe4 a4 4.
>                        Bf3 Rxh3
>    8->   6.01   0.24   1. gxh5 Qh6 2. Kf2 Rg3 3. Qe4 a4 4.
>                        Bf3 Rxh3
>    9    18.77   0.19   1. gxh5 b4 2. axb4 axb4 3. c4 b3 4.
>                        Rf2 Rb4 5. Qe2 Ra4
>    9->  22.97   0.19   1. gxh5 b4 2. axb4 axb4 3. c4 b3 4.
>                        Rf2 Rb4 5. Qe2 Ra4
>   10    36.08   0.23   1. gxh5 b4 2. axb4 axb4 3. c4 b3 4.
>                        Rd2 Bxb2 5. Qxf4 Be5 6. h6
>   10->  44.53   0.23   1. gxh5 b4 2. axb4 axb4 3. c4 b3 4.
>                        Rd2 Bxb2 5. Qxf4 Be5 6. h6
>   11     1:23   0.00   1. gxh5 b4 2. axb4 axb4 3. c4 b3 4.
>                        Rf2 Rbc8 5. Qd3 Rb8 6. Qf5 Bxb2 7.
>                        Qxf4
>   11     7:50   0.04   1. Qe4 Qa7+ 2. Kh1 Rg5 3. Bf3 hxg4
>                        4. Bxg4 Qg7 5. Rf3 Rg6 6. Qe2 b4 7.
>                        axb4 axb4
>   11->   8:15   0.04   1. Qe4 Qa7+ 2. Kh1 Rg5 3. Bf3 hxg4
>                        4. Bxg4 Qg7 5. Rf3 Rg6 6. Qe2 b4 7.
>                        axb4 axb4
>   12    13:58   0.09   1. Qe4 Qa7+ 2. Kh1 Rg5 3. Bf3 hxg4
>                        4. Bxg4 Qb7 5. Qf3 Rbg8 6. Rg1 R8g7
>                        7. Rg2 Kg8
>   12->  15:30   0.09   1. Qe4 Qa7+ 2. Kh1 Rg5 3. Bf3 hxg4
>                        4. Bxg4 Qb7 5. Qf3 Rbg8 6. Rg1 R8g7
>                        7. Rg2 Kg8
>   13    37:02   0.00   1. Qe4 Qg5 2. gxh5 f3 3. Qxf3 Rbf8
>                        4. Qe2 Qg3 5. Rxf8 Qh2+ 6. Kf1 Rxf8+
>                        7. Bf3 Qh1+ 8. Kf2 Qh2+ 9. Ke3 Qf4+
>                        10. Kf2 Qh2+
>   13->  41:40   0.00   1. Qe4 Qg5 2. gxh5 f3 3. Qxf3 Rbf8
>                        4. Qe2 Qg3 5. Rxf8 Qh2+ 6. Kf1 Rxf8+
>                        7. Bf3 Qh1+ 8. Kf2 Qh2+ 9. Ke3 Qf4+
>                        10. Kf2 Qh2+


I get Qe4 at 1:10 on my quad xeon:
               10->   9.99   0.09   1. gxh5 b4 2. axb4 axb4 3. c4 Qh6 4.
                                    Rf2 Rg3 5. Qe2 Rbg8 6. Kf1
               11    21.83  -0.10   1. gxh5 b4 2. axb4 axb4 3. c4 b3 4.
                                    Rf2 Rb4 5. h6 Qxh6 6. c5 Qg7
               11     1:10   0.00   1. Qe4 Qa7+ 2. Rf2 hxg4 3. Rxe5 dxe5
                                    4. Qxe5+ Qg7 5. Qh5+ Qh7 6. Qe5+ Qg7
               11->   1:10   0.00   1. Qe4 Qa7+ 2. Rf2 hxg4 3. Rxe5 dxe5
                                    4. Qxe5+ Qg7 5. Qh5+ Qh7 6. Qe5+ Qg7


All it really needs is for the score of gxh5 to drop negative, so that the
draw everyone is seeing becomes 'best'.




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