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Subject: Re: The mistake of nullmover in the last game

Author: Anthony Cozzie

Date: 19:07:26 02/01/04

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On February 01, 2004 at 19:04:31, Ralf Schäfer wrote:

>On February 01, 2004 at 17:59:09, Michel Langeveld wrote:
>
>>[D]4r1k1/p5p1/2p4p/4rp1P/P4Q2/2RbBPP1/q7/4R1K1 b - - am Rxe3
>>
>>Nullmover took Rxe3 and could not get futher then draw after this move.
>>How long for you engines to see it?
>
>Hi Michel,
>
>Cheetah needed 3 seconds to see the draw after Rxe3, then about 30 seconds to
>get another good move :-)
>
>Cheetah 0.70 CCT6 Build 4  WB2 1 MB:
> 1   00:00 -0,53   Te5xe3
> 1   00:00 -0,07   g7g5
> 1   00:00  0,97   Te5d5
> 1   00:00  1,01   c6c5
> 1   00:00  1,05   Te5c5
> 2   00:00 -3,89   Te5c5 Tc3xc5
> 2   00:00 -0,53   Te5xe3 Te1xe3
> 2   00:00 -0,07   g7g5 h5xg6/ep
> 2   00:00  0,18   Te5d5 Tc3xc6
> 2   00:00  0,20   Ld3e2 Le3xa7
> 2   00:00  1,12   Ld3c2 Tc3xc6
> 2   00:00  1,25   Da2d5 Kg1g2
> 3   00:00  0,97   Da2d5 Kg1h1 c6c5
> 3   00:01  3,03   Te5xe3 Df4xe3 Te8xe3
> 4   00:01  3,03   Te5xe3 Df4xe3 Te8xe3 Te1xe3
> 5   00:01  3,58   Te5xe3 Te1xe3 Da2a1+ Kg1h2 Te8xe3 Tc3xc6
> 6   00:01  3,58   Te5xe3 Te1xe3 Da2a1+ Kg1h2 Te8xe3 Tc3xc6 Da1b2+ Kh2h3
> 7   00:01  4,47   Te5xe3 Te1xe3 Da2a1+ Kg1h2 Te8xe3 Df4xe3 Da1b2+ Kh2h3 Db2xc3
> 8   00:02  3,62   Te5xe3 Te1xe3 Da2a1+ Kg1h2 Te8xe3 Df4xe3 Da1b2+ Kh2h3 Db2xc3
>De3xa7
> 9   00:02  3,62   Te5xe3 Te1xe3 Da2a1+ Kg1h2 Te8xe3 Df4xe3 Da1b2+ Kh2g1 Db2xc3
>De3xa7 Dc3e1+ Kg1h2
>10   00:03  0,00   Te5xe3 Te1xe3 Da2a1+ Kg1h2 Te8xe3 Df4xe3 Da1b2+ Kh2g1 Db2xc3
>De3e8+ Kg8h7 De8g6+ Kh7g8 Dg6e8+ Kg8h7 De8g6+ Kh7g8 Dg6e8+ Kg8h7 De8g6+
>10   00:25  1,29   Da2d5 Tc3c1 Ld3c2 Tc1xc2 Te5xe3 Te1f1 Te3a3 Tc2d2 Dd5f7 Df4h4
>10   00:30  2,12   g7g5 h5xg6/ep Te5xe3 Te1xe3 Da2a1+ Kg1h2 Da1b2+ Kh2g1 Te8xe3
>Df4xe3 Db2xc3 De3xa7
>
>regards
>Ralf

I'm not sure g5 is a good move.

Zappa gives Qd5 +1.6 in the original position:
1... Re5xe3 2. Re1xe3 Qa2-a1 3. Kg1-h2 Re8xe3 4. Qf4xe3 Qa1xc3 5. Qe3xa7 Qc3-d2
6. Kh2-h1 Qd2-d1 7. Kh1-h2
 = (4.59)       Depth: 9/15     00:00:01.40     8730kN
1... Re5xe3 2. Re1xe3 Qa2-a1 3. Kg1-h2 Re8xe3 4. Qf4xe3 Qa1xc3 5. Qe3-e8 Kg8-h7
6. Qe8-g6 Kh7-h8 7. Qg6-e8 Kh8-h7
 = (0.00)       Depth: 10/19    00:00:04.79     3784kN
1... Qa2-d5 2. Rc3-c1 c6-c5 3. Be3-f2 Re5xe1 4. Rc1xe1 Bd3-e2 5. Qf4-c1 c5-c4 6.
Qc1-c3 f5-f4
 = (1.59)       Depth: 10/19    00:00:13.02     11094kN

After forcing g5:
1. h5xg6 Re5xe3 2. Re1xe3 Qa2-a1 3. Kg1-h2 Qa1-b2 4. Kh2-h1 Qb2-b1 5. Kh1-h2
Qb1-b2
 = (0.00)       Depth: 14/28    00:00:36.17     34706kN
1. h5xg6 Re5xe3 2. Re1xe3 Qa2-a1 3. Kg1-h2 Qa1-b2 4. Kh2-h1 Qb2-b1 5. Kh1-h2
Qb1-b2
 = (0.00)       Depth: 14/28    00:00:39.82     38333kN

anthony

• Re: The mistake of nullmover in the last game Vasik Rajlich 04:19:15 02/02/04

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