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Subject: Re: Topalov-Svidler Corus 2004 Rd 7 (Yace PB)

Author: Ricardo Gibert

Date: 12:59:46 01/18/04

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On January 18, 2004 at 15:40:47, Kurt Utzinger wrote:

>On January 18, 2004 at 14:55:30, Ricardo Gibert wrote:
>
>>[D]8/1p2rkp1/p3p3/4P2p/8/1P1Q4/P1P3q1/1K3R2 b - -
>>
>>39...Ke8 appears to be Blacks best chance, since 39...Kg8 loses by force. It
>>takes Ruffian over 13 minutes to switch to Ke8 on a 800Mhz athlon with 32 Mb
>>hash. How do the other engines do?
>
>Yace Paderborn  UCI: (P4 1.8/32 MB hash under Arena 1.02)
> 1   00:00 -2.92   Qxf1+ Qxf1+ Ke8
> 1   00:00  0.79   Ke8
> 2   00:00  0.71   Ke8 Rd1
> 3   00:00  0.93   Ke8 Rd1 g5
> 4   00:00  0.71   Ke8 Rd1 g6 Qd6
> 5   00:00  0.65   Ke8 Rd1 g6 Qd8+ Kf7 Rd7
> 6   00:00  0.66   Ke8 Rd1 g6 Qd8+ Kf7 Rd7 Qf1+ Kb2
> 7   00:00  0.60   Ke8 Qc4 Qc6 Qd3 h4 Qg6+ Kd7 Rf7 Qh1+ Kb2
> 8-  00:00  0.20   Ke8 Qc4 Qc6 Qh4 g6 Qf6 Rf7 Qxf7+ Kd8
> 8   00:00  0.00   Ke8 Qc4 Kd7 Rd1+ Ke8 Rf1
> 8+  00:00  0.01   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Rf7 Qxe5+ Kb1
> 8   00:00  0.47   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Rh8+ Kg6 Qd6 h4
> 9   00:01  0.38   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Rh8+ Kg6 Qd6 h4 c3
>10   00:03  0.22   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Qd3+ g6 Qd6 a5 Rf6 Re8
>11   00:07  0.21   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Qd3+ g6 Qd6 Kh6 Rf6 Re8 Rxe6
>12   00:17  0.19   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Rh8+ Kg6 Qd3+ Qf5 Qd6 Rf7
>13   00:32  0.00   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 c3 Kh6 Rh8+ Kg6 Rf8 h4 Qd3+ Kh5
>Rh8+ Kg4 Qd1+ Kh3 Qh1+ Kg4
>14-  00:46 -0.40   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Qd3+ g6 Qd6 Kg7 Qb8 Qh6 Qd8 Re8
>Rxe8 h4
>14-  00:57 -1.40   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Qd3+ g6 Qd6 Kg7 Qb8 Qh6 Qd8 Re8
>Rxe8 h4
>14   01:08 -2.64   Kg8 Qd8+ Kh7 Rf8 Qg1+ Kb2 Qg5 Qd3+ g6 Qd6 Kg7 Qb8 Qf5 Rxf5
>exf5 Qd6 Rf7 e6
>14+  01:54 -2.63   Ke8 Qc4 Kd7 Rd1+ Ke8 Rd5

The -2.63 score of the last PV starting with Ke8 got me curious. How come so
negative? But then I noticed that the last move Rd5 is nonsense. What happened
to Yace here?



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