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Subject: Re: New Tough Endgame Test Suite

Author: Ed Schröder

Date: 23:37:33 05/27/00

Go up one level in this thread


On May 28, 2000 at 00:38:15, Eelco de Groot wrote:

>The output from Rebel 10 engine for ECTool, Celeron 500MHz, finds Kg3 in just
>under 19 minutes:
>
>Rebel Engine for ECTool. (c) Ed Schröder
>
>Engine version   :  REBEL 9/10
>Hash table size  :  13 Mb
>Analysis mode   :  Analyzing next move
>Refresh interval : 1000 ms
>
>Game begin
>
>00:00  09.00  0.50  Kf3-e2 Rc6xc3 Rh7-d7 Rc3-a3 Rd7xd5 Ra3-a2+ Ke2-d3
>00:01  10.00  0.49  Kf3-e2 Rc6xc3 Rh7-d7 Rc3-c4 Rd7xd5 c7-c6 Rd5xf5+
>00:03  11.00  0.41  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 Ke2-d3
>00:07  12.00  0.43  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 a4-a5
>00:12  13.00  0.43  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 a4-a5
>00:21  14.00  0.39  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 a4-a5
>00:47  15.00  0.34  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 Ke2-e3
>02:01  16.00  0.30  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 Ke2-e3
>05:53  17.00  0.27  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 Ke2-e3
>11:21  18.00  0.27  Kf3-e2 Rc6xc3 Rh7-d7 c7-c6 Rd7xa7 Rc3-c4 Ke2-e3
>18:56  18.07  0.27  Kf3-g3
>20:10  18.07  0.49  Kf3-g3 Rc6xc3+ Kg3-h4 Rc3-a3 g5-g6 Ra3xa4 Kh4-g5
>34:56  19.00  0.66  Kf3-g3 Rc6xc3+ Kg3-h4 c7-c5 g5-g6 c5xd4 Rh7-f7+ (00:34:56)
>53:54  20.00  0.66  Kf3-g3 Rc6xc3+ Kg3-h4 Rc3-c1 Kh4-h5 Rc1-d1  Kh5-g6
>(01:53:54)
>
>Can White actually promote the g-pawn?

I am not sure if Kg3 is winning. On the other hand if Capablanca
say so. The latest engine running under ECTOOL6 (beta) find Kg3
much quicker. Don't ask me why as I can't remember to have made
any changes here. But perhaps it is search related and here a lot
has changed.

00:00  08.01  0.51  1.Ke2 Rxc3 2.Rd7 Rc2+ 3.Kd3 Ra2 4.Rxd5 Rxa4 5.Rxf5
00:01  09.00  0.51  1.Ke2 Rxc3 2.Rd7 Rc2+ 3.Kd3 Ra2 4.Rxd5 Rxa4 5.Rxf5+ Kg7
00:02  10.00  0.39  1.Ke2 Rxc3 2.Rd7 Ra3 3.Rxd5 Rxa4 4.Rxf5+ Kg7 5.Rd5+ c6
00:06  11.00  0.40  1.Ke2 Rxc3 2.Rd7 c6 3.Rxa7 Rc4 4.a5 bxa5 5.Kd3+ a4 6.Ke3
00:17  12.00  0.32  1.Ke2 Rxc3 2.Rd7 c6 3.Rxa7 Rc4 4.a5 bxa5 5.Ke3 a4 6.Kd3 c5
00:45  13.00  0.31  1.Ke2 Rxc3 2.Rd7 c6
02:00  14.00  0.31  1.Ke2 Rxc3 2.Rd7
03:16  14.02  0.38  1.Kg3 Rxc3+ 2.Kh4 Ra3 3.g6 Rxa4 4.Kg5 Rc4 5.Rf7+
07:48  15.00  0.35  1.Kg3 Kg8 2.Rd7 Rxc3+ 3.Kh4 Rf3 4.g6 Rxf4+ 5.Kg5 Re4 6.Rxd5
19:48  16.00  0.73  1.Kg3 Kg8 2.Rd7 Rxc3+ 3.Kh4 Rf3 4.g6 Rxf4+ 5.Kg5 Re4 6.Rxd5
c5 7.dxc5 bxc5

Tested while reading CCC on a Athlon 600 and 60 Mb hash.

Ed



>Pete, on the subject of trolling, Yahoo found 343 sites! Trolley sites from
>Pennsylvania to Vancouver, churches in Trollhättan in Sweden, alt.troll on
>Usenet.. I remember these troll-dolls from the 70s with the long hair in
>fluorescent green and orange, there was a whole family you could collect. Looked
>great beside the lava-lamp. Hip, man! They were also characters in a comic
>strip.
>
>Some more about the mythological characters on this site
>http://www.ping.be/john_botofte/welcome.html
>
>Okay, this can be considered trolling, better back on topic again.
>
>Eelco



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