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Subject: Re: Testposition - Merry-go-round

Author: Sune Larsson

Date: 17:53:24 03/01/01

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On March 01, 2001 at 20:00:31, Dieter Buerssner wrote:

>On March 01, 2001 at 19:14:46, Sune Larsson wrote:
>
>>On March 01, 2001 at 18:33:33, Dieter Buerssner wrote:
>>
>>>On March 01, 2001 at 17:42:57, Sune Larsson wrote:
>>>
>>>>  4B3/5K2/5P1b/2p5/2p5/1k6/8/8 w - - 0 1
>>>>
>>>>  A. Selesniew, 1921
>>>
>>>[...]
>>>
>>>>  Test: White to move and draw. Not many choices - the black pawns
>>>>        are on the run.
>>>
>>>I think, Yace finds the correct move, but has no understanding at all of the
>>>position:
>>
>>    Yes, 1.Kg6! is the correct move. And the variation after 1.-c3 is drawn.
>>    But there are other tricky things after 1.-Bf4. Around and around we go...
>
>Yace likes 1...Bf4 much better than 1...c3 (from white's point of view). Again
>running in the background:
>
>    801464   7.199  -0.67 11t  2.Bf7 Kb4 3.Bd5 c3 4.Be4 Kb3 5.Kf5 Bb8 6.f7 Bd6
>                               7.Ke6 Bf8 {-80}
>   1190096  10.456  -0.67 11.  2.Bf7 Kb4 3.Bd5 c3 4.Be4 Kb3 5.Kf5 Bb8 6.f7 Bd6
>                               7.Ke6 Bf8 {-80}
>   1491780  13.406  -0.70 12t  2.Bf7 Kb4 3.Bd5 c3 4.Be4 Kb3 5.Kf5 Bh6 6.Kg6
>                               Bf8 7.Bd5+ c4 {-80}
>   2397231  22.229  -0.70 12.  2.Bf7 Kb4 3.Bd5 c3 4.Be4 Kb3 5.Kf5 Bh6 6.Kg6
>                               Bf8 7.Bd5+ c4 {-80}
>   3811533  34.959  -0.31 13t  2.Bf7 Be5 3.Be6 Kb4 4.Kf5 Bb2 5.Kg6 Bxf6 6.Kxf6
>                               c3H 7.Bf5H Kc4H {190}
>   4484820  41.389  -0.31 13.  2.Bf7 Be5 3.Be6 Kb4 4.Kf5 Bb2 5.Kg6 Bxf6 6.Kxf6
>                               c3 7.Bf5 Kc4 {190}
>   5548648  49.485  -0.31 14t  2.Bf7 Be5 3.Be6 Kb4 4.f7 Bd6 5.Bg4 c3 6.Bd1 Kb5
>                               7.Kg7 Ka5 8.f8=Q Bxf8+ 9.Kxf8 {190}
>   7037970  1:02.0  -0.31 14.  2.Bf7 Be5 3.Be6 Kb4 4.f7 Bd6 5.Bg4 c3 6.Bd1 Kb5
>                               7.Kg7 Ka5 8.f8=Q Bxf8+ 9.Kxf8 {190}
>  11008667  1:28.1  -0.54 15t  2.Bf7 Be5 3.Be6 Kb4 4.Kf5 Bd4 5.f7 Bg7 6.Ke4
>                               Bf8 7.Ke3 c3 8.Kd3 Bg7 9.Bf5 Bf8 {-80}
>  18683313  2:43.9  -0.54 15.  2.Bf7 Be5 3.Be6 Kb4 4.Kf5 Bd4 5.f7 Bg7 6.Ke4
>                               Bf8 7.Ke3 c3 8.Kd3 Bg7 9.Bf5 Bf8 {-80}
>  26327681  3:41.0  -0.48 16t  2.Bf7 Bg3 3.Kf5 Bh4 4.Be6 Kb4 5.f7 Be7 6.Ke4
>                               Kb3 7.Ke3 Kc3 8.Ke4 Bf8 9.Bg4 Kb3 10.Be6 Kc3H
>                               {HT}
>  42364178  6:08.5  -0.48 16.  2.Bf7 Bg3 3.Kf5 Bh4 4.Be6 Kb4 5.f7 Be7 6.Ke4
>                               Kb3 7.Ke3 Kc3 8.Ke4 Bf8 9.Bg4 Kb3 10.Be6 Kc3
>  66774829  9:06.8  -0.50 17t  2.Bf7 Be5 3.Kf5 Bd4 4.Be6 Kb4 5.f7 Bg7H 6.Ke4H
>                               Bf8H 7.Ke3H Bh6+H 8.Ke4H c3H 9.Kd3H Ka4H {HT}
>                               {-80}
> 102534773 14:58.1  -0.50 17.  2.Bf7 Be5 3.Kf5 Bd4 4.Be6 Kb4 5.f7 Bg7 6.Ke4
>                               Bf8 7.Ke3 Bh6+ 8.Ke4 c3 9.Kd3 Ka4 {HT} {-80}
> 125300792 18:10.9  -0.50 18t  2.Bf7 Be5 3.Kf5 Bd4 4.Be6 Kb4 5.f7 Bg7 6.Ke4
>                               Bf8 7.Ke3 Bh6+ 8.Ke4 Kb3 9.Ke5 Bg7+ 10.Kf5 Bf8
>                               11.Kf4 {-80}
> 195078789 29:51.7  -0.50 18.  2.Bf7 Be5 3.Kf5 Bd4 4.Be6 Kb4 5.f7 Bg7 6.Ke4
>                               Bf8 7.Ke3 Bh6+ 8.Ke4 Kb3 9.Ke5 Bg7+ 10.Kf5 Bf8
>                               11.Kf4 {-80}
> 245257722 36:58.3  -0.50 19t  2.Bf7 Be5 3.Kf5 Bd4 4.Be6 Kb4 5.f7 Bg7 6.Ke4
>                               Bf8 7.Ke3 Bh6+ 8.Ke4 Kb3 9.Ke5 Bg7+ 10.Kf5 Bf8
>                               11.Ke5 Kc3 {-80}
>
>Is this the correct idea?

  Wanna have fun - wanna merry-go-round... is created by:

  1.Kg6 Bf4 2.Bf7 Kb4 3.Bxc4!! Kxc4 4.Kf5 Ld6 5.Ke6 Bf8 6.Kf7 Bh6 7.Kg6 Bf4
  8.Kf5... Around and around...;))

>
>-- Dieter



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