Author: Dieter Buerssner
Date: 11:26:17 10/04/01
Go up one level in this thread
On October 04, 2001 at 09:59:03, Simon Finn wrote:
>On October 04, 2001 at 02:16:42, Ed Schröder wrote:
>
>>On October 03, 2001 at 19:49:56, Slater Wold wrote:
>>
>>>On October 03, 2001 at 15:45:32, José Antônio Fabiano Mendes wrote:
>>>
>>>> Taimanov-Zakharov,USSR 1969 === Black to move and win
>>>> [D]8/5p2/7p/5pk1/8/5KPP/8/8 b
>>>> Source: http://chesscafe.com/text/secpawnendings.txt
>>>
>
>[snip]
>1...h5! is definitely best.
>
>Karsten & Mueller's 1...Kg6 2. Ke3 Kg7 is less convincing, since
>
>3. Kf3! h5 (3... Kh7 4. Kf4 Kg6 5. Ke3 etc) 4. Ke3 Kh6 5. Kf3 Kg5 6 h4+
>
>is just a long-winded way to reach the main line after 1...h5!
>
>Instead, after 1...Kf6 2. Kf4 Ke6 3. Ke3 Ke5 4. Kf3
>
>[D]8/5p2/7p/4kp2/8/5KPP/8/8 b
>
>we get an even harder (6 ply deeper) test position.
>
>Black can win only by retracing his steps:
>
>4...Kf6 5. Kf4 Kg6 6. Ke3 Kg5 7. Kf3 h5! etc
What happens after 6. g4 ? I can only get a drawscore within 5 minutes.
(You can add 3 to the move numbers).
26601121 4:51.9 0.00 26t 3.g4 f6 4.Kf3 h5 5.gxh5+ Kg7 6.Kg2 f4 7.h6+
Kxh6 {EGTB} 8.h4 f3+ 9.Kh2 f2 10.Kg2! {Not all
positions found in TB} {-80}
>The score is convincing but the PV isn't. What causes the repetition?
For the later position, Yace failed high for h5 with mate score, but I lost
patience, after the fail high was not resolved after 1/2 hour.
After doing few moves into the line, and going back, I get this - I hope with
convincing score and PV :-)
176 2.998 Mat30 22. 1...h5 2.Ke3 f4+ 3.gxf4+ Kd5 4.Kd3 f6 5.Ke3 h4
6.Kf3 f5 7.Ke3 Kc4 8.Ke2 Kd4 9.Kf3 Kd3 10.Kg2
Ke4 11.Kf1 Kxf4 {EGTB} 12.Kf2! Ke4! 13.Ke2! f4!
14.Kf2! f3! 15.Kf1! Ke5 16.Kg1 Kf5! 17.Kf1!
Ke4! 18.Kf2! Kf4! 19.Kf1! Kg3! 20.Kg1 Kxh3!
21.Kf2! Kg4! 22.Kf1! h3 23.Kg1! Kf4! 24.Kf1 h2
25.Kf2 Ke4! 26.Ke1! f2+! 27.Kf1 h1=Q+! 28.Kxf2!
Qh2+! 29.Kf1 Ke3 30.Ke1 Qe2# {1001}
Regards,
Dieter
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