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Subject: Re: Testposition - The Pawnbishop

Author: Ed Schröder

Date: 02:39:55 03/06/01

Go up one level in this thread


On March 06, 2001 at 05:28:38, Sune Larsson wrote:

>
>  [D]8/2b2k1K/1pPp1p2/1P1P1P2/5B2/8/8/8 w - - 0 1
>
>  Meyer 19??
>
>  Hm, my sources are giving me some trouble here... First we had a beautiful
>  study by Schröder, who proved not to be *that* Rebel-Schröder. :) And
>  now we are facing a very clean finish by Meyer. Which Meyer? Kahlen?
>  Believe it or not... This ending is very simple, clean and with a
>  distinct finish. A bishop ending (same colors), 4-3 pawns, but the
>  position is blocked and it's difficult to make any progress. Something
>  must be there because black's bishop looks just like another pawn...
>
>
>  Test: White to move and win. Good evals for white, while just moving
>        around the pieces, are not enough. Can your program actually
>        play out this position for a win? The distinct kill further down.
>
>
>  Sune

Rebel 13 secs.

Gambit Tiger 2.0 (beta) comes with Bd2, score looks convincing :)

Ed

---------

Loading...

Engine version   : Rebel Century 3.1
Hash table size  :  60 Mb

8/2b2k1K/1pPp1p2/1P1P1P2/5B2/8/8/8 w - -

00:00:00  06.00  2.13  1.Kh6 Ke7 2.Be3 Bd8 3.Kg6 Ke8  [3936]
00:00:01  09.00  2.12  1.Be3 Bd8 2.Kh6 Bc7 3.Bd4 Bd8 4.Kh5 Ke7 5.Kg6 Bc7
[20572]
00:00:02  12.00  2.29  1.Be3 Bd8 2.Kh6 Bc7 3.Bf4 Bb8 4.Kh5 Bc7 5.Kg4 Ke7 6.Be3
Bd8 7.Bf4 Bc7 8.Be3 Bd8 9.Bf4  [40016]
00:00:02  13.01  2.18  1.Kh6 Bb8 2.Kh5 Bc7 3.Kg4 Ke7 4.Kf3 Bb8 5.Be3 Bc7 6.Ke4
Bd8 7.Bd4  [82970]
00:00:04  14.00  2.22  1.Kh6 Bb8 2.Kh5 Bc7 3.Kg4 Ke7 4.Kf3 Bb8 5.Be3 Bc7 6.Ke4
Bd8 7.Bd4 Kf7  [64736]
00:00:05  15.00  2.21  1.Kh6 Bb8 2.Kh5 Bc7 3.Kg4 Ke7 4.Bg3 Kf7 5.Bf4 Ke7 6.Bg3
Kf7  [93892]
00:00:06  16.00  2.29  1.Kh6 Bb8 2.Kh5 Bc7 3.Kg4 Ke7 4.Bg3 Bb8 5.Bf2 Bc7 6.Kf4
Bd8 7.Be3 Kf8 8.Bd2 Kf7 9.Bb4 Bc7 10.Bc3 Bd8 11.Kg4 Ke7 12.Bd4 Kf7  [129700]
00:00:07  17.00  2.21  1.Kh6 Bb8 2.Kh5 Bc7 3.Kg4 Ke7 4.Bg3 Bb8 5.Bf2 Bc7 6.Kf4
Bd8 7.Ke4 Kf7 8.Bd4 Ke7 9.Bc3 Kf7 10.Bd4 Ke7 11.Bc3 Kf7  [162994]
00:00:09  18.00  2.27  1.Kh6 Bb8 2.Kh5 Bc7 3.Kg4 Bb8 4.Be3 Bc7 5.Bd4 Bd8 6.Kf4
Ke7 7.Bc3 Kf7 8.Bb4 Bc7 9.Ke4 Bb8 10.Bc3 Bc7 11.Bd2 Bd8 12.Bb4 Ke7  [225504]
00:00:12  19.00  2.18  1.Kh6 Bb8 2.Kh5 Bc7 3.Be3 Bd8 4.Bd4 Bc7 5.Bc3 Bd8 6.Kg4
Bc7 7.Kf3 Bb8 8.Bd4 Bc7 9.Ke4 Bd8 10.Be3 Ke7 11.Kf3 Ke8 12.Bd2 Ke7  [256506]
00:00:13  19.01  2.18  1.Be3  [254970]
00:00:14  19.01  4.13  1.Be3 Bd8 2.Bd4 Bc7 3.Bxf6 Kxf6 4.Kg8 Kxf5 5.Kf7 Ke4
6.Ke6 Bb8 7.Kd7 Kxd5 8.Kc8 Ba7 9.c7  [270553]
00:00:23  20.00  6.09  1.Be3 Bd8 2.Bd4 Bc7 3.Bxf6 Kxf6 4.Kg8 Kxf5 5.Kf7 Ke5
6.Ke8 Kxd5 7.Kd7 Kc5 8.Kxc7 d5 9.Kb7 Kxb5  [314922]
00:00:34  21.00  6.09  1.Be3 Bd8 2.Bd4 Bc7 3.Bb2 Bb8 4.Bd4 Ke7 5.c7 Bxc7 6.Be3
Bd8 7.Bf2 Kd7  [341194]
00:00:58  22.00  6.07  1.Be3 Bd8 2.Bd4 Bc7 3.Bxf6 Kxf6 4.Kh6 Kxf5 5.Kh7 Bd8
6.Kg7 Ke4 7.Kf7 Kxd5 8.Ke8 Bf6 9.Kf7 Bd4 10.c7 Kc4 11.c8=Q  [365989]
00:01:28  23.00  6.33  1.Be3 Bd8 2.Bd4 Bc7 3.Bxf6 Kxf6 4.Kg8 Ke5 5.Kf7 Kxd5 6.f6
Ke5 7.Ke7 d5 8.f7 Bd6 9.Kd7 Bc5  [395650]
00:02:25  24.00  6.33  1.Be3 Bd8 2.Bd4 Bc7 3.Bxf6 Kxf6 4.Kg8 Ke5 5.Kf7 Kxd5 6.f6
Ke5 7.Ke7 d5 8.f7 Bd6 9.Kd7 Bc5 10.c7  [398724]

==========

Gambit Tiger 2.0 (beta)

00:00:00.8	3,47	15	111310	Bd2 Bd8 Kh6 Bc7 Be1 Bb8 Bf2 Bc7 Kh5 Kg7 Bd4 Kf7 Kg4
Ke7
00:00:00.4	3,56	15	112094	Bd2 Bd8 Kh6 Bc7 Be1 Bb8 Bf2 Bc7 Kh5 Kg7 Bd4 Kf7 Kg4
Ke7 Kf4
00:00:00.1	3,56	16	170603	Bd2 Bd8 Kh6 Bc7 Be1 Bb8 Bf2 Bc7 Kh5 Kg7 Bd4 Kf7 Kg4
Ke7 Kf4 Bd8
00:00:03.8	3,42	17	1162956	Bd2 Bd8 Kh6 Bc7 Be1 Bb8 Bf2 Bc7 Kh5 Kg7 Bg1 Kf7 Bd4
Bd8 Bb2 Bc7 Bc3
00:00:05.6	3,43	18	1645901	Bd2 Bd8 Kh6 Bc7 Be1 Bb8 Bf2 Bc7 Kh5 Kg7 Bg1 Kf7 Bd4
Bd8 Kg4 Bc7 Kf4 Ke7
00:00:08.8	3,44	19	2503921	Bd2 Bd8 Kh6 Bc7 Be1 Bb8 Bf2 Bc7 Kh5 Kg7 Be1 Kf7 Bc3
Bb8 Kg4 Bc7 Kf4 Ke7 Ke4
00:00:20.4	4,34	20	5618090	Bd2
00:00:23.8	7,44	20	6444326	Bd2 Bd8 Bc3 Bc7 Bxf6 Kxf6 Kg8 Kxf5 Kf7 Ke4 Ke6 Bb8
Kd7 Kxd5 Kc8 Ba7 Kb7 Ke5 Kxa7
00:00:23.1	7,44	21	6619527	Bd2 Bd8
00:00:32.8	8,34	22	9050908	Bd2
00:00:37.7	8,34	23	10636225	Bd2
00:00:49.7	8,80	23	13983884	Bd2 Bd8 Bc3 Bc7 Bxf6 Kxf6 Kg8 Kxf5 Kf7 Bd8 Ke8 Bf6
c7 Ke5 c8Q Kxd5 Qc6+ Ke6


>
>
>
>
>
>
>
>Meyer
>19??
>
>1.Be3 Bd8 2.Bd4 Bc7 3.Bxf6! Kxf6 4.Kg8! 1-0



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