Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Rybka mate-in-67 with 2 knights

Author: Joachim Rang

Date: 04:30:46 01/28/06

Go up one level in this thread


On January 28, 2006 at 01:55:22, Ted Summers wrote:

>On January 28, 2006 at 00:26:26, Mike Byrne wrote:
>
>FEN: [d]8/8/8/6Pn/4k3/4Pn1K/7P/8 b - - 0 66
>
>My Rybka shows:
>
>Analysis by Rybka 1.01 Beta 13b 32-bit:
>
>1...¢f5 2.g6 ¢xg6 3.¢g2 ¤h4+ 4.¢h3 ¢g5 5.e4 ¤f3 6.¢g2 ¢f4 7.e5 ¤xe5
>-+  (-#57)    Depth: 14   00:01:45  8006kN, tb=66214
>
>Hardware
>Intel Centrino laptop 1.4 Ghz


there is a mate in at least 56 moves as well:

8/8/8/6Pn/4k3/4Pn1K/7P/8 b - -

Engine: Fruit 05/11/03-Bryan (128 MB)
von Fabien Letouzey

1/04   0:00   +0.30    1...Sxg5+ 2.Kg4 (12)

2/07   0:00   0.00     1...Sxg5+ 2.Kg4 Kxe3 (98) TB:12

2/07   0:00   +0.25    1...Kxe3 2.Kg4 (122) TB:12

2/07   0:00   +0.29    1...Kf5 2.e4+ Kxg5 (169) TB:12

3/07   0:00   +0.30    1...Kf5 2.e4+ Kxg5 3.Kg2 (343) TB:15

4/09   0:00   +0.29    1...Kf5 2.e4+ Kxg5 3.Kg2 Kf4 (977) TB:16

5/13   0:00   +0.29    1...Kf5 2.g6 Kxg6 3.Kg2 Se1+ 4.Kf1 (4.259) TB:16

6/13   0:00   +0.30    1...Kf5 2.g6 Kxg6 3.Kg2 Se1+ 4.Kf1 Sf3 (9.072) TB:36

7/16   0:00   +0.30    1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Shf6 (24.060) TB:36

7/16   0:00   +0.31    1...Sg7 2.g6 Se5 3.Kg2 Sxg6 4.Kf2 Se5 (37.056) TB:36

8/17   0:01   +0.33    1...Sg7 2.g6 Se5 3.Kh4 Sxg6+ 4.Kg5 Se5
                       5.h4 Se6+ 6.Kf6 (60.047) 47 TB:72

9/18   0:01   +0.31    1...Sg7 2.g6 Se5 3.Kh4 Sxg6+ 4.Kg5 Se5
                       5.h4 Se6+ 6.Kf6 Sc5 (119.423) 80 TB:72

10/19  0:01   +0.32    1...Sg7 2.g6 Se5 3.Kh4 Sxg6+ 4.Kg5 Se5
                       5.h4 Se6+ 6.Kf6 Sc5 7.Kg5 (223.340) 124 TB:103

11/22  0:01   +0.32    1...Sg7 2.g6 Se5 3.Kh4 Sxg6+ 4.Kg5 Se5
                       5.h4 Se6+ 6.Kf6 Sc5 7.Kg5 Sf3+ 8.Kg4 (412.396) 216 TB:132

11/24  0:02   +M98     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kg1 Shf6
                       5.Kh2 Sg4+ 6.Kg1 Sef6 7.Kf1 Sxe3+ (521.017) 242 TB:310

12/24  0:02   +M86     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Sc3
                       5.e4+ Sxe4 (615.299) 253 TB:338

13/26  0:02   +M86     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Sc3
                       5.e4+ Sxe4 (852.991) 303 TB:402

14/28  0:03   +M86     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Sc3
                       5.e4+ Sxe4 (1.461.781) 386 TB:531

15/30  0:04   +M86     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Sc3
                       5.e4+ Sxe4 (2.697.516) 500 TB:747

16/32  0:07   +M86     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Sc3
                       5.e4+ Sxe4 (4.933.189) 625 TB:1.258

17/35  0:13   +M86     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Sc3
                       5.e4+ Sxe4 (9.547.537) 722 TB:2.522

18/36  0:22   +M86     1...Kf5 2.Kg2 Sxg5 3.h4 Se4 4.Kf3 Sc3
                       5.e4+ Sxe4 (17.958.350) 782 TB:4.812

19/40  0:54   +M82     1...Kf5 2.g6 Kxg6 3.Kg2 Sh4+ 4.Kf1 Kf5
                       5.Kf2 Ke4 6.h3 Sf5 7.Kf1 Sxe3+ (40.687.452) 752
                       TB:13.850

20/41  1:38   +M59     1...Kf5 2.g6 Kxg6 3.Kg2 Sh4+ 4.Kh3 Kg5
                       5.e4 Sf3 6.Kg2 Kf4 7.e5 Sxe5 (56.233.653) 568
                       TB:21.307

21/44  3:10   +M57     1...Kf5 2.g6 Kxg6 3.Kg2 Sh4+ 4.Kh3 Kg5
                       5.e4 Sf6 6.e5 Sh5 7.e6 Sf4+ 8.Kg3 Sxe6 (80.615.095) 424
                       TB:34.580

22/44  5:37   +M57     1...Kf5 2.g6 Kxg6 3.Kg2 Sh4+ 4.Kh3 Kg5
                       5.e4 Sf6 6.e5 Sh5 7.e6 Sf4+ 8.Kg3 Sxe6 (123.435.279) 366
                       TB:57.134

23/45  8:51   +M57     1...Kf5 2.g6 Kxg6 3.Kg2 Sh4+ 4.Kh3 Kg5
                       5.e4 Sf6 6.e5 Sh5 7.e6 Sf4+ 8.Kg3 Sxe6 (192.063.087) 361
                       TB:98.342

24/46  12:20  +M57     1...Kf5 2.g6 Kxg6 3.Kg2 Sh4+ 4.Kh3 Kg5
                       5.e4 Sf6 6.e5 Sh5 7.e6 Sf4+ 8.Kg3 Sxe6 (281.991.106) 380
                       TB:165.296

25/48  18:18  +M56     1...Kf5 2.g6 Kxg6 3.Kg2 Se5 4.Kf2 Kf5
                       5.e4+ Kxe4 (463.706.048) 422
                       TB:299.539




This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.