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Subject: Re: Null move problem Ruffian solves in one second. How about your prog.?

Author: John Merlino

Date: 13:46:48 06/17/03

Go up one level in this thread


On June 17, 2003 at 15:45:20, Dann Corbit wrote:

>E:\programme\winboard\ruffian>ruffian -h 300M -T \m33.epd -t 999 -p 20
>Hash size 314572800
>Ruffian 1.0.1
>feature done=0
>Loading configuration: ruffian.cfg
>Warning: EGTB_HASH_SIZE changed, default=1048576, newvalue=8388608
>Logfile: Tue Jun 17 12:41:46 2003
>Total hash size 300M
>Initializing tablebases: /programme/winboard/nalimov
>Testing \m33.epd, 999 seconds, extra ply 20
>Testing: test 1   Solution: Kh6
>  1q1k4/2Rr4/8/2Q3K1/8/8/8/8 w - -
>  Depth   Time  Score    Best line
>   8/18   1.02    #33    Kh6 Rxc7 Qf8+ Kd7 Qxb8 Kd6 Kg5
>   8-->   1.59    #33    Kh6 Rxc7 Qf8+ Kd7 Qxb8 Kd6 Kg5
>
>
>Time: 1.59, cpu 37.74%, nodes 291341, nps 183233
>Hash: 128M, used 0%, hits 28%
>EGTB: probs 176, hits 176
>
>Best move: Kh6 (#33)  Solved (1/1)
>
>Summery: 1/1

Chessmaster 9000 finds it "instantly" (this is on a P3-750):

Time	Depth	Score	Positions	Moves
0:00	1/3	1.95	3318		1.Kh6 Qa8 2.Qf8+ Kxc7 3.Qxa8
0:00	1/4	1.97	14261		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc6+
					4.Kg5
0:00	1/5	1.99	54995		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc5
					4.Qf4 Rc2
0:00	1/6	2.02	86278		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc5
					4.Qf4 Rc6+ 5.Kg5
0:01	1/7	2.02	170816		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc5
					4.Qf4 Kc6 5.Kg7 Rd5
0:03	2/8	2.04	387756		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc5
					4.Qb4 Rd5 5.Kg6 Kc6 6.Qc4+ Kd6
0:09	3/9	2.04	1170384		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc5
					4.Qb4 Kd6 5.Qd4+ Rd5 6.Qf6+ Kc5
					7.Qc3+ Kd6 8.Kg6
0:25	4/10	2.07	3208779		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc5
					4.Qb3 Kd6 5.Kg6 Ke5 6.Qe3+ Kd5
					7.Kf5 Kc6+ 8.Kf4
1:05	5/11	2.07	8231012		1.Kh6 Rxc7 2.Qf8+ Kd7 3.Qxb8 Rc5
					4.Kg6 Ke6 5.Qe8+ Kd6 6.Kf6 Rd5
					7.Qb8+ Kc5 8.Qc7+ Kd4 9.Ke6

jm



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