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Subject: Re: Very interesting position.. Crafty vs ProDeo

Author: Uri Blass

Date: 03:42:24 08/24/04

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On August 24, 2004 at 05:43:04, Jarkko Pesonen wrote:

>On August 23, 2004 at 17:07:48, David Dahlem wrote:
>
>>On August 23, 2004 at 16:17:00, Drexel,Michael wrote:
>>
>>>On August 23, 2004 at 15:51:59, David Dahlem wrote:
>>>
>>>>[D]6k1/1q3ppp/r7/1rp1P1n1/3p1P2/1P1R2PP/2Q4K/B4R2 b - - 0 1
>>>>
>>>>This position is taken from this thread:
>>>>
>>>>http://www.talkchess.com/forums/1/message.html?383382
>>>>
>>>>I let Crafty play white and ProDeo play black from this position at 40 moves in
>>>>80 minutes. Crafty liked 4.Qe2 for a long time, but finally switched to 4. Rdd1.
>>>
>>>Unfortunatey this game is not very important because 4.Rdd1 is hopeless.
>>>4.Qe2 is much better.
>>>
>>>Michael
>>
>>[D]6k1/1q3p1p/6pr/1rp1P3/3p1PK1/1P1R2P1/4Q3/B4R2 b - - 0 4
>>
>>This is what ProDeo says after 4.Qe2. This is, of course, on a rather slow
>>P3/933/32mb hash.
>>
>>ProDeo UCI:
>>
>>   5	00:00	-1.82	4. ... Rh5 5.Qc2 Rb4 6.Rf2 Qd5
>>   6	00:00	-1.83	4. ... Rh5 5.Bb2 Rxb3 6.Rxb3 Qxb3 7.Qg2 h6
>>   7	00:01	-1.51	4. ... Rh5 5.f5 Rb4 6.Rff3 h6 7.Bb2
>>   7	00:01	-1.61	4. ... Qd5 5.f5 gxf5+ 6.Rxf5 Rg6+ 7.Kf4 h6 8.Qd1
>>   8	00:03	-1.35	4. ... Qd5 5.f5 Rh5 6.Bb2 Rb8 7.Bc1 h6
>>   9	00:08	-1.35	4. ... Qd5 5.f5 Rh5 6.Qf3 Qd8 7.Qe4 Ra5 8.fxg6 fxg6
>>   9	00:15	-1.35	4. ... Rb6
>>   9	00:15	-1.35	4. ... Qd5 5.f5 Rh5 6.Qf3 Qd8 7.Qe4 Ra5 8.fxg6 fxg6
>>  10	00:35	-1.05	4. ... Qd5 5.f5 Rb6 6.Bb2 Rh5 7.Bc1
>>  10	00:37	-1.05	4. ... Rb6
>>  10	00:46	-1.62	4. ... Rb6 5.f5 gxf5+ 6.Rxf5 Qh1 7.Bxd4 cxd4
>>  11	02:29	-1.66	4. ... Rb6 5.Rdf3 Rb4 6.Rd3 Rh5 7.f5 Qe7 8.fxg6 Qg5+
>>  12	05:29	-1.58	4. ... Rb6 5.Rdf3 Rb4 6.Rd3 Rh5 7.f5
>>
>>Regards
>>Dave
>
>Arfer Rb6
>
> 13    52:10   0.00   2. f5 gxf5+ 3. Rxf5 Qh1 4. Bxd4 cxd4
>                      5. Rg5+ Rhg6 6. Rxg6+ hxg6 7. Kf4 Rb4
>                      8. Qf3 Qc1+ 9. Ke4 Qc5 10. Kf4 <HT>

You spend time on the wrong line.
Here is the convincing line and if your program agree with all white move then
after them it is more than +3 pawns for black based on yace that usually tends
to underevaluate king safety.

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "6k1/1q3ppp/r7/1rp1P1n1/3p1P2/1P1R2PP/2Q4K/B4R2 b - f3 0 1"]
[PlyCount "13"]

1... Nxh3 2. Kxh3 Rh6+ 3. Kg4 Rbb6 4. f5 Rh1 5. Rdf3 h5+ 6. Kf4 Rxf1 7. Rxf1
Rxb3 *




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