Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: In case you've got nothing else to do...

Author: Mihaly Szalai

Date: 07:27:58 11/07/03

Go up one level in this thread


On November 07, 2003 at 02:18:54, Vincent Lejeune wrote:

>On November 06, 2003 at 13:09:54, Mihaly Szalai wrote:
>
>>...try to solve this study (with or without the help of your engine):
>>
>>[D]4k1rr/1R1R3p/8/8/8/2K5/7P/8 w k - 0 1
>>
>>White wins.
>>
>>Thanks
>>Mihaly
>
>is it the right line ?
>
>Barton 2800+, 384 MB hash :
>
>Analysis by Hiarcs 9:
>
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00  1kN
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00  1kN
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00  1kN
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00  1kN
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>  +-  (1.48)   Profondeur: 9/12   00:00:00  1kN
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>8.Tg7+ Rf8 9.Taf7+
>  +-  (1.48)   Profondeur: 10/29   00:00:12  3671kN, tb=1616
>1.Td3 Tf8
>  +-  (1.48)   Profondeur: 10/29   00:00:39  13061kN, tb=4502
>1.Td3 Tf8 2.Ta7 h6 3.Te3+ Rd8 4.Tg3 Rc8 5.Tgg7 Rb8 6.Tab7+ Rc8 7.Tbc7+
>  +-  (1.48)   Profondeur: 10/29   00:00:40  13486kN, tb=4568
>1.Td3 Tf8 2.Ta7 h6 3.Te3+ Rd8 4.Tg3 Re8 5.Tgg7 Tf3+ 6.Rd4 Rf8 7.Tgc7 Rg8
>  ±  (1.39)   Profondeur: 11/31   00:01:06  22618kN, tb=7592
>1.Ta7 Tg1 2.Tdb7 Tc1+ 3.Rd3 Tc8 4.Re4 Tc4+ 5.Rd5 Tc8 6.Te7+ Rf8 7.Tf7+ Rg8
>8.Tg7+ Rf8 9.Taf7+
>  ±  (1.40)   Profondeur: 11/31   00:01:08  23110kN, tb=8020
>1.Ta7 Tg6 2.Tdb7 0-0 3.Txh7 Td8 4.Rc4 Tg4+ 5.Rb5 Tg5+ 6.Rc6 Tg6+ 7.Rc5 Tg5+
>  +-  (1.41)   Profondeur: 11/31   00:01:36  33081kN, tb=12699
>1.Te7+ Rd8
>  +-  (1.41)   Profondeur: 11/32   00:01:43  36213kN, tb=13154
>1.Te7+ Rd8 2.Tbd7+ Rc8 3.Ta7 Rb8 4.Teb7+ Rc8 5.Tc7+ Rb8 6.Tab7+ Ra8 7.Rd3 Tg4
>8.Ta7+ Rb8 9.Tcb7+ Rc8
>  +-  (1.41)   Profondeur: 11/35   00:02:22  46937kN, tb=19621
>1.Te7+ Rd8 2.Tbd7+ Rc8 3.Ta7 Rb8 4.Teb7+ Rc8 5.Tc7+ Rb8 6.Tab7+ Ra8 7.Rd3 Tg4
>8.Ta7+ Rb8 9.Tcb7+ Rc8
>  +-  (1.41)   Profondeur: 12/36   00:04:56  93870kN, tb=45678
>1.Td3 Tf8 2.Ta7 h6 3.Te3+ Rd8 4.Tg3 Re8 5.Tgg7 Tf3+ 6.Rd4 Rf8 7.Tgc7 Rg8
>  +-  (1.42)   Profondeur: 12/36   00:05:14  101583kN, tb=49703
>1.Td3 Tf8 2.Ta7 h5 3.Te3+ Rd8 4.Tg3 Rc8 5.Tgg7 Tf3+ 6.Rd4 Tb3 7.Tgc7+ Rd8
>  +-  (1.44)   Profondeur: 12/36   00:05:39  112380kN, tb=52393
>1.Td3 Tf8 2.Ta7 h5 3.Te3+ Rd8 4.Tg3 Rc8 5.Tgg7 Tf3+ 6.Rc4 Rb8 7.Tgb7+ Rc8 8.Te7
>Rd8 9.Tad7+
>  +-  (1.50)   Profondeur: 13/36   00:08:51  195851kN, tb=84864
>1.Td3 Tf8 2.Ta7 Thg8 3.Te3+ Rd8 4.Txh7 Tf4
>  +-  (1.47)   Profondeur: 14/37   00:22:32  557406kN, tb=221264
>1.Td3 Tf8 2.Ta7 Thg8 3.Te3+ Rd8 4.Rd3 h5 5.Th3 Th8 6.Tg3 h4 7.Tgg7 Tf3+
>  +-  (1.47)   Profondeur: 15/41   01:01:05  1587463kN, tb=663158
>1.Td2 Tf8
>  +-  (1.48)   Profondeur: 15/41   02:00:56  3218186kN, tb=1525739
>1.Td2 Tf8
>  +-  (1.72)   Profondeur: 15/41   02:00:56  3218302kN, tb=1525749
>1.Td2 Tf8 2.Rc2 Thg8 3.Rb2 h6 4.h3 h5 5.h4 Th8
>  +-  (3.39)   Profondeur: 15/41   02:01:58  3247566kN, tb=1534243
>1.Td2 Tf8 2.Rc2 Thg8 3.Rb2 h6 4.h3 h5 5.h4 Th8
>  +-  (3.64)   Profondeur: 16/41   02:20:36  3767811kN, tb=1742480
>1.Td2 Tf8 2.Rc2 Thg8 3.Rb2 h6 4.h3 h5 5.h4 Th8 6.Ta7 Thg8 7.Ra2 Tf4 8.Te2+
>  +-  (3.73)   Profondeur: 16/41   02:37:31  4234489kN, tb=1920780
>1.Td2 Tf8 2.Rc2 Thg8 3.Rb2 h5 4.h4 Th8 5.Ta7 Thg8 6.Ra2 Tg4 7.Te2+ Rd8
>  +-  (3.78)   Profondeur: 17/43   05:43:35  9701602kN, tb=4819116


Hello Vincent,

zugzwang is the key:

1.Rd2 Rf8 2.Kc2 Rhg8 3.Kb2 h6 4.h3 h5 [ 4...Rh8 5.h4 Rhg8 6.h5] 5.h4 Rh8 6.Ra7
Rhg8 7.Ka2 +-

Thanks
Mihaly




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.