Author: John Merlino
Date: 09:15:21 07/27/03
Go up one level in this thread
On July 27, 2003 at 11:05:08, Peter Berger wrote:
>[D]8/5KBB/p4b2/1pp1kb2/8/1P6/1P5P/8 b - - 0 1
>
>That's Em. Lasker - Tarrasch, St. Petersburg 1914
>
>The position is won easily with 1...Be6+ 2. Kg6 Bxg7 3. Kxg7 Bxb3 4. h4 Bd1 -+
>
>But not with 1...Bxg7? 2. Bxf5 =+
>
>The pawn endgame is drawn: 2. ...Kxf5?! 3. Kg7 a5 4. h4 Kg4 5. Kg6! ( and not 5.
>Kf6? c4 6. bc bc 7. Ke5 c3 8. bc a4 9. Kd4 a3 -+, Tarrasch's idea) Kh4 6. Kf5
>Kg3 7. Ke4 Kf2 8. Kd5 Ke3 9. Kc5 Kd3 10. Kb5 Kc2 11. Ka5 Kb3 1/2-1/2
>
>The bishop's ending after 2. Bxf5 is extremely drawish because of the bishops of
>opposite colours.
>
>I only tried Yace so far that had a very hard time with this position
>
>852631702 14:51.1 0.45 20. 1...Bxg7 2.Bxf5 Bh6 3.Bc8 a5 4.Ba6 b4 5.Kg6 Bc1
> 6.h4 Bxb2 7.h5 Kd4 8.h6 Kc3 9.Bc4 Kd2 10.Kf5
> Ke3 11.h7H Bh8H {80}
>
>How do other engines do? Please give them some time to see if they really keep
>Be6+ .
>
>Peter
Majestic Chess sees Be6+ immediately and does not give it up after over one
minute. However, the score is not totally convincing (-0.42).
jm
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