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Subject: Re: Testposition - Fooled by the Eyes

Author: Steven J. Brann

Date: 19:03:57 03/10/01

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[snip]

John,

I tried the same position and when the score increased, the moves that go with
the eval disappear but the analysis seems to keep on working.  The configuration
is CM8K, Chessmaster personality, PIII 933, 64MB DDR video 1280 X 1024 small
fonts, 1st patch installed.  I tried variants of CM -- with 32MB and 64MB of
hash increased selective search etc., with similar result... i.e., no moves
displayed when the score moves up.  No other applications are running (other
than those on boot, antivirus etc.).  Have any idea why?

Time	Depth	Score	Positions	Moves
0:00	2/3	-3.78	225		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-b4+ Qd1-g4 4. Qb4xb7 Qg4-g3+
					5. Kh2-h1
0:00	3/4	-3.22	693		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4xb7
0:00	2/3	-3.78	225		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-b4+ Qd1-g4 4. Qb4xb7 Qg4-g3+
					5. Kh2-h1
0:00	3/4	-3.22	693		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4xb7
0:00	4/5	0.00	1953		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
0:00	5/6	0.00	17388		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
0:00	6/7	0.00	46627		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
0:00	7/8	0.00	105039		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
0:01	8/9	0.00	217513		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
0:02	9/10	0.00	415463		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
0:04	10/11	0.00	797537		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
0:08	11/12	0.00	1560392		1. f6-f7 d3-d2 2. f7-f8=Q d2-d1=Q
					3. Qf8-e7+ Kh4-g4 4. Qe7-e4+ Kg4-g5
					5. Qe4-e5+ Kg5-g4 6. Qe5-e4+
2:08	12/13	8.05	22777349	22777349
2:38	13/14	8.13	28068953	28068953
3:34	14/15	8.24	38082530	38082530
6:09	15/16	8.46	65532686	65532686

Thanks, Steve

>It takes CM8000 quite some time, but it does finally find it. Wonderful
>position!:
>
>Time	Depth	Score	Positions	Moves
>0:00	1/4	-3.22	640		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qxb7
>0:00	1/3	-3.78	225		1. f7 d2 2. f8=Q d1=Q 3. Qb4+ Qg4
>					4. Qxb7 Qg3+ 5. Kh1
>0:00	1/4	-3.22	640		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qxb7
>0:00	1/5	0.00	1822		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:00	1/6	0.00	14088		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:00	1/7	0.00	29838		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:00	1/8	0.00	54005		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:01	2/9	0.00	97111		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:02	3/10	0.00	170377		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:03	4/11	0.00	298717		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:06	5/12	0.00	670185		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:10	6/13	0.00	1214840		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:18	7/14	0.00	2262885		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:30	8/15	0.00	3875952		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>0:49	9/16	0.00	6340593		1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>1:28	10/17	0.00	11204556	1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>2:32	11/18	0.00	18894552	1. f7 d2 2. f8=Q d1=Q 3. Qe7+ Kg4
>					4. Qe4+ Kg5 5. Qe5+ Kg4 6. Qe4+
>16:12	12/19	8.83	119207051	1. f7 d2 2. f8=Q d1=Q 3. Qf4+ Qg4
>					4. Qe3 b6 5. Qe7+ Qg5 6. Qe4+ Qg4
>					7. Qe3 b5 8. Qe7+ Qg5 9. Qe4+ Qg4
>					10. Qe3 b4 11. Qe7+ Qg5 12. Qxb4+
>					Qg4 13. Qe7+ Qg5 14. Qe4+ Qg4 15.
>					Qe3 Qh3+ 16. Qxh3+
>
>jm



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