Author: Daniel Mehrmannn
Date: 18:29:58 05/31/05
Go up one level in this thread
On May 31, 2005 at 18:24:33, Richard Pijl wrote:
>I've been using the arasan testsuites quite a lot as they contain a nice mix of
>different type of positions. Today I was looking at a position that was always
>solved by the Baron in 30 seconds, but not anymore by the latest test version.
>I'm talking about the position with id Arasan.81:
>[D]1B4k1/5p2/K5p1/7p/P4P2/5P2/8/6n1 b - -
>Bestmove is said to be f5, to block the bishop from stopping the black pawn on
>h5 from queening. This seems to be confirmed by many engines with about a draw
>score. But now, after an initial drawish score, the Baron shows a show of minus
>1 pawn in a second, quickly decreasing to - 3 pawns for f5, later switching to
>Nxf3 with a similar score. Somehow f5 doesn't seem to be that good.
>Just to be sure I also checked with Ruffian, and also Ruffian shows a declining
>score for 1..f5, although it needs a little more time to see that.
>One line seems to be 1..f5 2.Ba7 Nxf3 (or 2..Ne2 3.Bf2) 3.Bf2 h4 4.Bxh4 and the
>a-pawn queens as the king and knight are too far away, e.g 4..Nxh4 5.a5 (5..Nf3
>6.Kb6!) Ng2 6.Kb5 Nxf4 7.a6 Nd5 8.a7 Nc7 9.Kc6 Na8 10.Kb7
>Is there anyone that has a drawing(winning?) line for black after 1..f5?
>bye,
>Richard.
Hi Richard !
Well, thats more luck as knowlege and Homer doesn't much know about such
endgames ;)
1B4k1/5p2/K5p1/7p/P4P2/5P2/8/6n1 b - -
Engine: Homer 0.03 Build 285a (8 MB)
by Daniel Mehrmann
[....]
18/45 2:35 +0.76 1...f5 2.a5 h4 3.Kb6 h3 (119.170.581) 766
18/45 2:37 +0.76 1...f5 2.a5 h4 3.Kb6 h3 (121.026.994) 766
19/47 5:20 +0.82 1...f5 2.a5 h4 3.Kb6 h3 4.a6 h2 5.a7 h1Q
6.a8Q Qxf3 7.Qxf3 Nxf3 8.Kc6 (225.767.024) 705
Greetigs
daniel
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