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Subject: Re: Testposition - Fooled by the Eyes

Author: John Merlino

Date: 17:48:02 03/09/01

Go up one level in this thread


On March 09, 2001 at 20:18:31, Sune Larsson wrote:

>
>  [D]8/1p6/5Pp1/7p/7k/3p4/7K/8 w - - 0 1
>
>  Moravec, 1961
>
>  Hm... a pawn ending 1 vs 4 pawns. But both players will get a queen.
>  Hm... maybe there is some chance of getting a perpetual here.
>  Hm... hope is the last to abandon man.
>
>        "Sorry to interrupt your thoughts here, but it's
>        actually white to move and *win*."
>
>  What!!!
>
>  Hm... I think I stick to backgammon...
>
>
>  Test: No joke - white moves for the win. I think your programs
>        will make it. Take a look at the evals - they will alter
>        quite a bit... The path to the fulfilment further down.
>
>
>  Sune
>
>
>
>
>
>
>
>
>
>
>Moravec,J
>1961
>
>1.f7 d2 2.f8Q d1Q 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 1->0

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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