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Subject: Re: WAC 100 -- Be3 is also a solution -- probably better than b6+

Author: John Merlino

Date: 17:20:25 03/09/01

Go up one level in this thread


On March 09, 2001 at 18:04:02, Dann Corbit wrote:

>Ever had a problem with WAC 100?  Does your program stubbornly stick to Be3?

CM8000 (default settings) is sticking with b6+. It hardly considered Be3 at all,
even at the end of the first search below:

Time	Depth	Score	Positions	Moves
0:00	4/5	2.86	1114		1. Be3 Bd6 2. Kb3 Kb6 3. Kc3
0:00	8/9	2.79	35063		1. Be3 Bd6 2. Kb3 Kb6 3. Kc3 Bb8
					4. Kd2 Ba7 5. Kd3
0:01	9/10	3.22	103595		1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8
0:01	10/11	3.13	157497		1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7
					4. Ke3 Bb6 5. Be1 Bd8 6. Bc3
0:03	11/12	3.18	303367		1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7
					4. Ke3 Bb6 5. Be1 Bc7 6. Bc3 Bd8
0:06	12/13	3.07	560213		1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Kf3 Be7
					7. Ba5 Bd6
0:10	13/14	3.09	1076513		1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Ba1 Be7
					7. Bb2 Bd8
0:22	14/15	3.07	2346930		1. Kb3 Bd8 2. Bc1 Bc7 3. Kc3 Kb8
					4. Ba3 Bxf4 5. Bxc5 Bg3 6. b6 Be5+
					7. Bd4 f4 8. Kd3 f3 9. Bxe5+ fxe5
0:46	15/16	3.04	4629337		1. Kb3 Bd8 2. Bc1 Bc7 3. Kc3 Kb8
					4. Ba3 Bb6 5. Kd3 Ka8 6. Bb2 Bd8
					7. Bc3 Kb8 8. Ke3 Ka7
1:07	15/16	3.29	6813152		1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Kb8
					4. Kxc5 Ba5 5. Kd6 Ka8 6. Bf2 Bc7+
					7. Ke6 Bxf4 8. Kxf6 Kb8 9. Kxf5
					Bd6 10. a7+ Kb7
1:31	16/17	3.84	9391737		1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Kb8
					4. Kxc5 Ba5 5. Kd6 Ka8 6. Ke6 Be1
					7. c5 Kb8 8. c6 Ba5 9. a7+ Ka8
					10. Kxf5
2:25	17/18	4.39	15571814	1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Kb8
					4. Kxc5 Ba5 5. Kd6 Kc8 6. Ke6 Be1
					7. Kxf6 Bxh4+ 8. Kg6 Kc7 9. Kxh5
					Be7 10. Kg6 Kc6 11. Kxf5
3:52	18/19	4.58	25488023	1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Kb8
					4. Kxc5 Ba5 5. Kd6 Bc7+ 6. Ke6
					Ba5 7. Kxf6 Bd8+ 8. Kg6 Bxh4 9.
					Kxh5 Be7 10. Bb6 Bb4 11. Kg6 Bd6
					12. Kxf5

Even using selective search = 12 and a 32MB hash table, there's no fail on Be3:

Time	Depth	Score	Positions	Moves
0:00	1/7	2.79	3808		1. Be3 Bb6 2. Kb3 Kb8 3. Bc1 Ba7
					4. Bb2
0:00	1/8	2.94	7267		1. Be3 Bb6 2. Kb3 Kb8 3. Bc1 Ka7
					4. Bb2 Bc7
0:00	2/9	2.93	10020		1. Be3 Bb6 2. Kb3 Kb8 3. Bc1 Ka7
					4. Ba3 Kb8 5. Bb2 Bc7
0:00	3/10	2.93	18045		1. Be3 Bb6 2. Kb3 Kb8 3. Bc1 Ka7
					4. Ba3 Kb8 5. Bb2 Bc7
0:00	4/11	2.78	33541		1. Be3 Bb6 2. Kb3 Kb8 3. Bf2 Ka7
					4. Ka4 Kb8 5. Be1 Bc7 6. Bg3
0:00	4/11	3.11	47852		1. Kb3 Bb6 2. Kc3 Bd8 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Bb2
0:00	5/12	3.12	69928		1. Kb3 Bb6 2. Kc3 Bd8 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Bb2 Be7
0:01	6/13	3.07	132357		1. Kb3 Bb6 2. Kc3 Bd8 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Kf3 Be7
					7. Ba5 Bd6
0:02	7/14	3.09	258309		1. Kb3 Bb6 2. Kc3 Bd8 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Ba1 Be7
					7. Bb2 Bd8
0:06	8/15	2.99	615205		1. Kb3 Bb6 2. Kc3 Bd8 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Ba1 Be7
					7. Bb2 Bd8 8. Bc3
0:11	9/16	3.14	1210325		1. Kb3 Bb6 2. Kc3 Bd8 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Ba1 Be7
					7. Bb2 Bd8 8. Bc3 Kb8
0:25	10/17	2.90	2691555		1. Kb3 Bb6 2. Kc3 Bd8 3. Kd3 Bc7
					4. Ke3 Bb6 5. Bc3 Bd8 6. Kd3 Be7
					7. Ba5 Bd6 8. Ke3 Bb8 9. Bd8
0:40	10/17	2.96	4294541		1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8
					4. Bxc5+ Ka8 5. Be3 Bc7 6. c5 Kb8
					7. Kc6 Ba5 8. Kd7 Ka7 9. c6+ Kxa6
					10. c7 Bxc7 11. Kxc7 Kb5 12. Bd4
0:53	11/18	3.78	5776478		1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8
					4. Bxc5+ Ka8 5. Be3 Bc7 6. c5 Ka7
					7. c6+ Ka8 8. Bb6 Bxf4 9. c7 Bxc7
					10. Bxc7 Ka7 11. Bb6+ Ka8 12. Be3
					Kb8 13. a7+ Ka8
1:13	12/19	3.86	8255801		1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8
					4. Bxc5+ Ka8 5. Be3 Bc7 6. c5 Ka7
					7. c6+ Ka8 8. Bb6 Bxf4 9. c7 Bxc7
					10. Bxc7 Ka7 11. Bb6+ Kb8 12. Bc5
					Ka8 13. Be7 f4 14. Bxf6
2:22	13/20	3.95	15775768	1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8
					4. Bxc5+ Ka8 5. Be3 Bc7 6. c5 Ka7
					7. c6+ Ka8 8. Bb6 Bxf4 9. c7 Bxc7
					10. Bxc7 Ka7 11. Bd8 f4 12. Bxf6
					f3 13. Bd4+ Kb8 14. Bf2
6:41	14/21	4.13	42648356	1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8
					4. Bxc5+ Ka8 5. Be3 Bc7 6. Kc6
					Bd8 7. Kd5 Ba5 8. Ke6 Be1 9. c5
					Ba5 10. Kxf5 Ka7 11. Kxf6 Bc3+
					12. Kg6 Kxa6 13. Kxh5 Kb5
13:46	15/22	4.57	84962327	1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8
					4. Bxc5+ Ka8 5. Be3 Bc7 6. Kc6
					Bd8 7. Kd5 Ba5 8. Ke6 Kb8 9. Kxf6
					Bd8+ 10. Kg6 Bxh4 11. Kxh5 Be7
					12. Kg6 Kc7 13. Bd4 Kc6 14. Kxf5

jm



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