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Subject: Re: Engine Test..............Baron 1.2.1 first move..!!

Author: Uri Blass

Date: 12:57:35 05/02/04

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On May 02, 2004 at 15:03:43, Klaus Friedel wrote:

>On May 02, 2004 at 13:23:43, Anthony Cozzie wrote:
>
>>On May 02, 2004 at 12:30:20, Rob Basham wrote:
>>
>>>[D]r1bk3r/pp2n2p/2n2N2/1R1p3Q/2p4P/P1p5/2qBBPP1/4K2R w K - 0 1
>>>
>>>Baron 1.2.1 finds RXP ch  the first move!
>>>
>>>
>>>Ruffian 1.0.1  takes 2 sec.
>>>
>>>P3/850
>>
>>Richard must have some trick he isn't telling.  Zappa has a _lot_ of trouble
>>with this one:
>>
>>1. Bd2-g5 a7-a6 2. Be2-d1 Qc2-g6 3. Rb5xd5 Kd8-c7 4. Qh5-f3 Bc8-e6 5. Qf3-g3
>>Kc7-c8 6. Bd1-g4 Be6xg4 7. Qg3xg4 Kc8-b8 8. Nf6-d7 Kb8-c7 9. Qg4-f4 Kc7-c8 10.
>>Bg5xe7 Nc6xe7 11. Qf4xc4
>> = (0.54)	Depth: 11/28	00:00:37.22	24719kN
>>1. Rb5xd5 Ne7xd5 2. Qh5xd5 Kd8-e7 3. Qd5-c5 Ke7-f7 4. Be2-h5 Kf7xf6 5. Qc5-g5
>>Kf6-e6 6. Bh5-g4 Ke6-f7 7. Qg5-d5 Kf7-f8 8. Bd2-h6 Kf8-e8 9. Bg4-h5 Qc2-g6 10.
>>Bh6-g7 c3-c2 11. Bh5xg6 h7xg6 12. Qd5xc4
>> = (2.23)	Depth: 11/33	00:00:49.66	33145kN
>>1. Rb5xd5 Ne7xd5 2. Qh5xd5 Kd8-e7 3. Qd5-c5 Ke7-f7 4. Be2-h5 Kf7xf6 5. Qc5-g5
>>Kf6-e6 6. Bh5-g4 Ke6-f7 7. Qg5-d5 Kf7-f8 8. Bd2-h6 Kf8-e8 9. Bg4-h5 Qc2-g6 10.
>>Bh6-g7 c3-c2 11. Ke1-g1 c2-c1=Q 12. Bh5xg6 h7xg6 13. Rf1xc1
>> = (2.68)	Depth: 13/38	00:02:14.44	95346kN
>>
>>anthony
>
>Snitch: < 1 sek.
>
> 1  -198      1       107 ( 1/ 2) = b5d5 e7d5 h5d5 d8c7
> 2  -198      1       532 ( 2/ 6) = b5d5 e7d5 h5d5 d8c7
> 3  -178      1      1599 ( 3/ 8) = b5d5
> 3  -139      2      3954 ( 3/ 9) = b5d5 e7d5 h5d5 d8e7 d2g5 c8f5 f6h7 e7e8
> 4  -139      4      9023 ( 4/10) = b5d5 e7d5 h5d5 d8e7 d2g5
> 5  -182     24     68496 ( 5/13) = b5d5 e7d5 h5d5 d8e7 d2g5 c2b1 e2d1 b1d3
> 5  -173     34     97729 ( 5/13) = d2f4 c8e6 b5b7 h8f8 h5h6
> 6  -165     88    245036 ( 6/14) = d2f4 c8e6 b5b7 c2g6 h5g6 h7g6 e2f3 d8c8
> 6  -153     90    252088 ( 6/14) = b5d5
> 6   -38     97    270628 ( 6/14) = b5d5 e7d5 h5d5 d8e7 d2g5 c2b1 e2d1 h7h6 f6g8
>e7f8 g8h6
> 7   -18    142    413021 ( 7/19) = b5d5
> 7     0    158    461514 ( 7/19) = b5d5 e7d5 h5d5 d8e7 d5c5 e7f6 c5g5 f6f7 e2h5
>f7e6 h5g4 e6f7 g4h5
> 8     0    298    908568 ( 8/22) = b5d5 e7d5 h5d5 d8e7 d5c5 e7f6 c5g5 f6f7 e2h5
>f7e6 h5g4 e6f7 g4h5
> 9     0    639   2012952 ( 9/25) = b5d5 e7d5 h5d5 d8e7 d5c5 e7f6 c5g5 f6f7 e2h5
>f7e6 h5g4 e6f7 g4h5
>
>I don't think it needs a lot of tricks. By disabling any special tricks
>I i can think of, Snitch gets almost the same result.
>Check extensions are very important in this position. By disabling check
>extensions Snitch needs several minutes to find it.

No

You need to see a positive score and not draw score for Rxd5 because movei like
zappa has a positive score for Bg5 before finding Rxd5

If Baron can see +2 for Rxd5+ very fast then it clearly has a lot of tricks.

Uri



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