Author: Scott Gasch
Date: 14:04:30 07/21/02
Go up one level in this thread
On July 18, 2002 at 19:01:25, Omid David wrote:
>Which program can declare a draw in the following position:
>
>8/4k3/8/p1p1p1p1/P1P1P1P1/8/2B1K3/8 w
The output from Hossa got me thinking about these positions and I added some
experimental blocked position detection code to monsoon. Here's the result from
your position:
1u +2.65 00:00:00.01 7 PV= 1. Kd3 <+3.00>
1u +2.82 00:00:00.02 9 PV= 1. Ke3 <+3.00>
1. +2.82 00:00:00.03 15 PV= 1. Ke3 <+3.00>
2. +2.61 00:00:00.05 63 PV= 1. Ke3 Kd6 <+3.00>
3. +2.67 00:00:00.07 144 PV= 1. Ke3 Kd6 2. Bd3 <+3.00>
4. +2.67 00:00:00.10 409 PV= 1. Ke3 Ke6 2. Bd3 Kd6 <+3.00>
5u +2.67 00:00:00.12 1363 PV= 1. Bd3 Ke6 2. Kf3 Kd6 3. Ke3 <+3.00>
5. +2.67 00:00:00.12 1363 PV= 1. Bd3 Ke6 2. Kf3 Kd6 3. Ke3 <+3.00>
6u +2.69 00:00:00.13 2761 PV= 1. Ke3 Ke6 [zug] 2. Bd1 Ke7 3. Bf3
> Kd6 4. Kd3 <+3.00>
6. +2.69 00:00:00.15 3041 PV= 1. Ke3 Ke6 [zug] 2. Bd1 Ke7 3. Bf3
> Kd6 4. Kd3 <+3.00>
7. +2.69 00:00:00.18 3859 PV= 1. Ke3 Ke6 [TT: Bd1 Ke7 ...]
8. +2.71 00:00:00.20 6310 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd6
> 4. Bg2 Ke6 <+3.00>
9. +2.71 00:00:00.23 9075 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd7
> 4. Bg2 [zug] Kd6 5. Kd3 Ke6 <+3.00>
10. +2.71 00:00:00.26 12384 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd7
> 4. Bg2 [TT: Kd6 Kd3 Ke6 ...]
11. +2.69 00:00:00.30 21986 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd7
> 4. Bg2 Ke7 5. Kd3 [zug] Ke6 6.
> Bf3 Kd6 <+3.00>
12. +2.69 00:00:00.34 28129 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd7
> 4. Bg2 Ke7 5. Kd3 [TT: Ke6 Bf3
> Kd7 Ke2 ...]
13- +0.00 00:00:00.96 37487 --
13. +0.00 00:00:00.99 40083 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd6
> 4. Kd3 Kc6 5. Ke2 Kd6 6. Ke3 Kd7
> 7. Kd3 <+3.00>
14. +0.00 00:00:01.03 51017 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd6
> 4. Kd3 Kc6 5. Ke2 Kd6 6. Ke3 Kc6
> 7. Kd3 Kd6 <+3.00>
15. +0.00 00:00:01.08 64220 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd6
> 4. Kd3 Kc6 5. Ke2 Kd6 6. Ke3 Kc6
> 7. Kd3 Kd6 8. Be2 <+3.00>
16. +0.00 00:00:01.13 80884 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd6
> 4. Kd3 Kc6 5. Ke2 Kd6 6. Ke3 Kc6
> 7. Be2 Kd6 8. Kd3 Kc6 <+3.00>
17. +0.00 00:00:01.19 109752 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd6
> 4. Kd3 Kc6 5. Ke2 Kd6 6. Ke3 Kc6
> 7. Kd3 Kd6 8. Be2 Kc6 9. Bf3
> [DRAW/REP]
18. +0.00 00:00:01.28 152055 PV= 1. Ke3 Kd6 2. Bd1 Kc6 3. Bf3 Kd6
> 4. Be2 Kc6 5. Bd3 Kd6 6. Be2
> [DRAW/REP]
(and so on...)
Scott
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