Endgame analysis

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Dann Corbit, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Re: Endgame analysis

Post by Arpad Rusz » Tue Feb 22, 2011 11:02 am

12.D.Gurgenidze, Magyar Sakkélet, 1972
[D]8/5p1B/1p6/1p6/P7/8/p3rB2/k5K1 w - - 0 1

White wins

Paloma
Posts: 1004
Joined: Thu Dec 25, 2008 8:07 pm

Re: Endgame analysis

Post by Paloma » Tue Feb 22, 2011 11:53 am

Hi Arpad,

you give the positions here in the thread a number.
e.g. the number above is 12.

If i correctly see, i missed number 8.

regards
Herbert

Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Re: Endgame analysis

Post by Arpad Rusz » Tue Feb 22, 2011 1:46 pm

My mistake, there was no number 8...

Maybe Tom's endgame should be it:
8.[D]6b1/5p2/1p3Bp1/1P3pP1/5P2/pp1BK3/pr4P1/k7 w - - 0 1

White to move and mate in 21

Max
Posts: 247
Joined: Tue Apr 13, 2010 8:41 am

Re: Endgame analysis

Post by Max » Tue Feb 22, 2011 3:29 pm

Arpad Rusz wrote:12.D.Gurgenidze, Magyar Sakkélet, 1972
[D]8/5p1B/1p6/1p6/P7/8/p3rB2/k5K1 w - - 0 1

White wins
Yace 0.99.87 (256mb hash, Core2Duo @ 2.2ghz, 1 thread, 32 bit) says mate in 12 :D
Analysis by Yace 0.99.87:

= (0.00) Tiefe: 7/13 00:00:00
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 7/19 00:00:00
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 7/19 00:00:00
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 8/19 00:00:00
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 8/19 00:00:00
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 8/19 00:00:00 33kN
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 8/19 00:00:00 33kN
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 8/19 00:00:00 33kN
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 8/19 00:00:00 33kN
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 8/19 00:00:00 69kN
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 9/21 00:00:00 87kN
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 9/21 00:00:00 161kN
1.Ld4+ Tb2 2.axb5 f6 3.Lxf6
= (0.00) Tiefe: 9/26 00:00:00 203kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 10/26 00:00:00 428kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 10/27 00:00:00 504kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 11/27 00:00:00 906kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 11/31 00:00:00 1096kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 12/31 00:00:00 1842kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 12/33 00:00:00 2195kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 13/33 00:00:01 3561kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 13/35 00:00:01 4261kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 14/39 00:00:02 6614kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 14/39 00:00:03 7852kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 15/39 00:00:04 12022kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 15/40 00:00:05 14374kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 16/42 00:00:08 21160kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 16/42 00:00:10 25797kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 17/43 00:00:14 37124kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 17/43 00:00:18 45726kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 18/43 00:00:26 63749kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 18/43 00:00:33 79414kN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 19/45 00:00:46 110mN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 19/45 00:01:02 144mN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 20/47 00:01:28 201mN
1.Ld4+ Tb2 2.axb5 f5 3.Lxf5
= (0.00) Tiefe: 20/47 00:02:20 295mN
1.Ld4+ Tb2 2.Lf6 b4
² (0.40) Tiefe: 21/47 00:02:39 338mN
1.Ld4+ Tb2 2.Lf6 b4
+- (2.07) Tiefe: 21/47 00:02:39 339mN
1.Ld4+ Tb2 2.Lf6 b4
+- (7.10) Tiefe: 21/47 00:02:39 339mN
1.Ld4+ Tb2 2.Lf6 bxa4 3.Lc2 b5 4.Kf2 b4 5.Ke3 b3 6.Ld3 a3 7.Lc3 f6 8.Kd4 f5 9.Kc4 f4 10.Kb4 f3 11.Kxa3 f2 12.Lxb2#
+- (#12) Tiefe: 21/47 00:03:02 410mN

1.Ld4+ Tb2 2.Lf6 bxa4 3.Lc2 b5 4.Kf2 b4 5.Ke3 b3 6.Ld3 a3 7.Lc3 f6 8.Kd4 f5 9.Kc4 f4 10.Kb4 f3 11.Kxa3 f2 12.Lxb2#
+- (#12) Tiefe: 21/47 00:04:39 738mN
1.Ld4+ Tb2 2.Lf6 bxa4 3.Lc2 b5 4.Kf2 b4 5.Ke3 b3 6.Ld3 a3 7.Lc3 f6 8.Kd4 f5 9.Kc4 f4 10.Kb4 f3 11.Kxa3 f2 12.Lxb2#
+- (#12) Tiefe: 22/47 00:05:10 831mN
1.Ld4+ Tb2 2.Lf6 bxa4 3.Lc2 b5 4.Kf2 b4 5.Ke3 b3 6.Ld3 a3 7.Lc3 f6 8.Kd4 f5 9.Kc4 f4 10.Kb4 f3 11.Kxa3 f2 12.Lxb2#
+- (#12) Tiefe: 22/47 00:07:10 1235mN
1.Ld4+ Tb2 2.Lf6 bxa4 3.Lc2 b5 4.Kf2 b4 5.Ke3 b3 6.Ld3 a3 7.Lc3 f6 8.Kd4 f5 9.Kc4 f4 10.Kb4 f3 11.Kxa3 f2 12.Lxb2#
+- (#12) Tiefe: 23/47 00:08:00 1388mN
1.Ld4+ Tb2 2.Lf6 bxa4 3.Lc2 b5 4.Kf2 b4 5.Ke3 b3 6.Ld3 a3 7.Lc3 f6 8.Kd4 f5 9.Kc4 f4 10.Kb4 f3 11.Kxa3 f2 12.Lxb2#
+- (#12) Tiefe: 23/47 00:11:10 2036mN
Max

Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Re: Endgame analysis

Post by Arpad Rusz » Thu Feb 24, 2011 2:18 am

13.V.Bron, Lelo, 1969
[D]8/pNPP3P/P7/2P5/8/1q1P4/3P4/k1K5 w - - 0 1

White wins

Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Re: Endgame analysis

Post by Arpad Rusz » Thu Feb 24, 2011 10:47 am

14.D.Gurgenidze, Chervoni Girnik, 1979
[D]Q7/P1PP4/2PP4/1p6/3b4/P4PP1/1r4k1/K6N w - - 0 1

White wins

yanquis1972
Posts: 1766
Joined: Tue Jun 02, 2009 10:14 pm

Re: Endgame analysis

Post by yanquis1972 » Thu Feb 24, 2011 4:05 pm

how does white NOT win??

Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Re: Endgame analysis

Post by Arpad Rusz » Thu Feb 24, 2011 4:27 pm

The black threat is checkmate (no.13) or perpetual check (no.14.). White has a big material advantage but the win is not so easy...

yanquis1972
Posts: 1766
Joined: Tue Jun 02, 2009 10:14 pm

Re: Endgame analysis

Post by yanquis1972 » Thu Feb 24, 2011 5:46 pm

i didn't see 13 but 14 looks like some sacs on the h8 square will solve it pretty fast.

Arpad Rusz
Posts: 270
Joined: Sat Apr 17, 2010 12:34 pm
Location: Budapest

Re: Endgame analysis

Post by Arpad Rusz » Thu Feb 24, 2011 5:57 pm

Even 4 queen sacrifices on h8 are not enough to escape from perpetual check. :wink:

Post Reply