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Subject: Re: Tricky B+P endgame

Author: Sune Fischer

Date: 03:36:42 01/19/03

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On January 19, 2003 at 06:15:42, Alastair Scott wrote:

>[D] 8/3b3p/1pp3p1/6P1/4Bp1P/2K1kP2/P7/8 b - - 0 36
>
>There seems to be remarkably little agreement here. Of those I've tried:
>
>Sargon 5 plays ... Bg4, as described earlier
>
>Scidlet plays ... c5
>
>Crafty 19.1 sticks with ... c5 with a minor deviation, for a few seconds, to Bg4
>
>Fritz 8 plays ... Bg4
>
>Comet B54 oscillates between ... Kf2, ... Be6 and its eventual decision ... c5
>
>All on either PIII/1GHz or PIIIM/1.2GHz.
>
>Alastair

My guess is that there is more than one winning move here, frenzee prefers Bg4
and is keeps failing high:


1	-109	0	1		1...b5
1	-120	1	3		1...c5
2	-118	1	38		1...c5 2.Bd5 hxg6
3	-117	1	135		1...c5 2.Bd5 Bf5
4	-116	2	341		1...c5 2.Bd5 Bf5 3.Kb2
5	-117	4	1740		1...c5 2.Kb2 Ke2 3.Bd5 b5 4.Bxf5
6	-116	5	5503		1...c5 2.Kc4 Kf2 3.Kc3
6	-118	6	12430		1...Kf2 2.Kd4 Kg3 3.Ke5 c5 4.Bd5
7	-115	7	18113		1...Kf2 2.Kd4 Kg3 3.Ke5 c5 4.Kd6 Bb5 5.Bxf5
7	-115	8	21213		1...c5
8	-112	9	34790		1...c5 2.Kc4 Kf2 3.Kd5 Bb5 4.Kd6 Bc4 5.Kc7
8	-119	14	67395		1...b5 2.a3 Kd4
9	-115	16	89794		1...b5 2.a3 c5 3.a4 bxa4 4.Kc4 a3 5.Kb3 Bg4 6.fxg4 Kxe4 7.Kxa3
10	-114	22	135896		1...b5 2.a4 bxa4 3.Kb4 Kf2 4.Kxa4 c5+ 5.Kb3 Kg3 6.h5 Be6+
7.Kb2 gxh5
10	-114	24	153144		1...c5
11	-119	42	323208		1...c5 2.Kc4 Kf2 3.Kd5 Kg3 4.Ke5 Be8 5.Ke5
12	-120	61	489230		1...c5 2.Kc4 Kf2 3.Kd5 Kg3 4.Kd6 Be8 5.Kc7 b5 6.Bc6 Bxc6
7.Kxc6
12	-151	93	778089		1...Bg4 2.Bxc6 Bxf3 3.Be8 Bd5 4.Kb4 f3 5.Kb5 f2 6.Bh3
13	-150	107	899738		1...Bg4 2.Bxc6 Bxf3 3.Be8 Bd5 4.Kb2 f3 5.Bb5 f2 6.Bf1 Kd2
7.Bd3 Kg3
14	-161	184	1584400		1...Bg4 2.Bxc6 Bxf3 3.Be8 Bd5 4.a3 f3 5.Bb5 f2 6.Bf1 Kf4
7.Kd3 Bc6 8.Ke2
15	-199	306	2630414		1...Bg4 2.Bxc6 Bxf3 3.Be8 Kf2 4.Kd4 Kg3 5.Ke5 Bh5 6.Ba4 f3
7.Ke3
16	-352	1303	7418224		1...Bg4 2.h5 Bxf3 3.Be8
17	-354	2281	12286784	1...Bg4 2.Bxc6 Bxf3 3.Bd7 Be2 4.Bd7
18	-352	2815	15872052	1...Bg4 2.Bxc6 Bxf3 3.Bd7 Be2 4.Kc2 f3 5.Bh3 f2 6.Bh3
19	-392	5400	25564499	1...Bg4 2.Bxc6 Bxf3 3.Bd7 Be2 4.Be6 f3 5.a4 f2 6.Bdh3
20	-440	11434	44959478	1...Bg4 2.Bxc6 Bxf3 3.Bb5 Be2 4.Bc8
21	-440	20031	57604644	1...Bg4 2.Bxc6 Bxf3 3.Bb5 Be2 4.Bc8

-S.



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