Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Mate in 10

Author: Ignacio Santos Crespo

Date: 04:41:12 04/22/02

Go up one level in this thread


On April 21, 2002 at 22:15:55, Dan Ellwein wrote:

>On April 21, 2002 at 08:16:10, Ignacio Santos Crespo wrote:
>
>>On April 20, 2002 at 20:31:51, Keith Ian Price wrote:
>>
>>>On April 20, 2002 at 19:23:45, Dan Ellwein wrote:
>>>
>>>>On April 20, 2002 at 12:56:06, Art Basham wrote:
>>>>
>>>>>White wins by Rg8..! (good test move)...
>>>>>
>>>>>[D]3R4/5r1p/5ppk/8/1Q3PPq/5P2/6K1/8 w - - bm Rg8; id Quick-08;
>>>>
>>>>on a 400Mhz Celeron computer CMLite finds mate in 10 in
>>>>8 min 19 sec...
>>>>
>>>>Time	Depth	Score	Positions	Moves
>>>>0:30	2/12	4.33	1734035		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>>>					Rd7 4. Kg2 Kf7 5. Kf2 Re7 6. Qc4+
>>>>					Kg7 7. Qc5 Kf8 8. Kg3
>>>>8:19	2/12	Mate13	27360287	1. Rg8 f5 2. g5+ Kh5 3. Qd6 Qxg5+
>>>>					4. fxg5 Kxg5 5. f4+ Kg4 6. Qd3
>>>>					Kxf4 7. Qg3+ Ke4 8. Rd8 f4 9. Qd3+
>>>>					Ke5 10. Rd5+ Kf6 11. Qd4+ Ke7 12.
>>>>					Qe5+ Kf8 13. Rd8#
>>>
>>>
>>>Actually, it seems to find a Mate in 13. So is this problem a Mate in 13, or is
>>>there a solution for the Mate in 10? John Merlino earlier posted CM's solution,
>>>which was also a Mate in 13. So perhaps this is a Mate in 13. Anyone found a
>>>Mate in 10?
>>>
>>>kp
>>
>>
>>
>>On a 1200 Mhz Athlon, CM Lite finds mate in 10 in 13 min 55 sec
>>
>>Time	Depth	Score	Positions	Moves
>>0:00	1/5	4.17	20654		1. Rd1 f5 2. Rh1 Qxh1+ 3. Kxh1
>>					fxg4 4. fxg4
>>0:00	1/6	4.14	28956		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>					Rc7 4. Qd2 f5 5. Kg2
>>0:00	1/7	4.10	48598		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>					h5 4. Kg2 h4 5. Qb5 Rc7
>>0:00	1/8	4.10	113078		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>					Rc7 4. Kg1 h5 5. Qe1 hxg4 6. fxg4
>>0:01	1/9	4.22	202405		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>					Rc7 4. Kg2 Rc2+ 5. Kg1 f5 6. Qe7+
>>					Kg8 7. Qe6+ Kg7 8. Qd7+ Kg8 9.
>>					gxf5
>>0:02	1/10	4.27	424611		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>					Rd7 4. Kg2 h5 5. Kg3 hxg4 6. fxg4
>>					Rd3+ 7. Kf2
>>0:04	1/11	4.31	842292		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>					Rd7 4. Kg2 Kf7 5. Kf2 f5 6. Qc4+
>>					Kg7 7. Ke3 h6 8. Qe6
>>0:08	2/12	4.33	1726880		1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1
>>					Rd7 4. Kg2 Kf7 5. Kf2 Re7 6. Qc4+
>>					Kg7 7. Qc5 Kf8 8. Kg3
>>1:35	2/12	Mate13	22034536	1. Rg8 f5 2. g5+ Kh5 3. Qd6 Qxg5+
>>					4. fxg5 Kxg5 5. f4+ Kg4 6. Qd3
>>					Kxf4 7. Qg3+ Ke4 8. Rd8 f4 9. Qd3+
>>					Ke5 10. Rd5+ Kf6 11. Qd4+ Ke7 12.
>>					Qe5+ Kf8 13. Rd8#
>>1:39	3/13	Mate12	22973751	1. Rg8 f5 2. g5+ Kh5 3. Qd6 Qxg5+
>>					4. fxg5 Kxg5 5. Qd8+ Rf6 6. f4+
>>					Kxf4 7. Qc7+ Ke3 8. Rd8 Ke4 9.
>>					Qc4+ Ke5 10. Qd4+ Ke6 11. Qd6+
>>					Kf7 12. Qd7#
>>2:01	4/14	Mate12	29500824	1. Rg8 f5 2. g5+ Kh5 3. Qd6 Qxg5+
>>					4. fxg5 Kxg5 5. Qd8+ Rf6 6. f4+
>>					Kxf4 7. Qc7+ Ke3 8. Rd8 Ke4 9.
>>					Qc4+ Ke5 10. Qd4+ Ke6 11. Qd6+
>>					Kf7 12. Qd7#
>>7:49	5/15	Mate11	124305307	1. Rg8 f5 2. g5+ Qxg5+ 3. fxg5+
>>					Kxg5 4. Qd6 f4 5. Qd8+ Kf5 6. Re8
>>					Ra7 7. Kh3 Rd7 8. Qxd7+ Kg5 9.
>>					Qg4+ Kh6 10. Rg8 g5 11. Qxg5#
>>13:55	6/16	Mate10	233051199	1. Rg8 f5 2. g5+ Qxg5+ 3. fxg5+
>>					Kxg5 4. Qd6 f4 5. Kh3 Rf5 6. Qe7+
>>					Rf6 7. Rf8 Kh5 8. Qxf6 g5 9. Qg7
>>					g4+ 10. fxg4#
>
>thanks Ignacio for the analysis...
>
>gonna have to get one of those Athlon 1200 Mhz computers...
>
>i didn't give the settings for CMLite in this post, so i imagine you got the
>settings from another post of mine...
>
>Dan

From http://www.talkchess.com/forums/1/message.html?224666

CMLite

Own Q  7.7     Opp Q  7.7
Own R  4.3     Opp R  4.3
Own B  2.6     Opp B  2.6
Own N  2.6     Opp N  2.6
Own P  1.0     Opp P  1.0

SS = 12

It´s ok ?

Ignacio



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.