Author: Omid David
Date: 10:56:09 08/30/02
Go up one level in this thread
On August 30, 2002 at 13:42:29, Dann Corbit wrote:
>On August 30, 2002 at 09:56:21, Omid David wrote:
>[snip]
>>How do you calculate branching factor here?
>
>How long does it take to get from ply n to ply n+1
>
>Or
>
>How many nodes in ply n verses ply n+1
>
>Both work out about the same.
But there is the odd/even issue. For example how do you count the b-factor in
this example (Genesis, depth 10):
---------------
created 64 MB hash table, 4194304 entries.
using NegaScout search.
quiescence search on [check on]
null move search on [R = 3] [v]
aspiration window search off.
opening book off.
resign on [score < -1200]
searching 9 plies per move.
White(1): load test
can't load file: test
File loaded: test.txt
+---+---+---+---+---+---+---+---+
8 | | | *B| | | | *K| |
+---+---+---+---+---+---+---+---+
7 | | *P| *P| *P| | *P| *P| *P|
+---+---+---+---+---+---+---+---+
6 | *R| | | | | | | |
+---+---+---+---+---+---+---+---+
5 | *P| | P | | P | P | *R| |
+---+---+---+---+---+---+---+---+
4 | | | | B | | | | |
+---+---+---+---+---+---+---+---+
3 | R | | | | | | | |
+---+---+---+---+---+---+---+---+
2 | P | | P | | | | P | P |
+---+---+---+---+---+---+---+---+
1 | | | | R | | | K | |
+---+---+---+---+---+---+---+---+
a b c d e f g h
White(1): sd 10
searching 10 plies per move.
White(1): p
depth time score variation
1-> 0.00 -0.13 1. a3f3
nodes 107 nps 0 q 68% hhits 0%
2-> 0.02 -0.14 1. f5f6 g5g6
nodes 618 nps 30900 q 71% hhits 0%
3-> 0.04 -0.07 1. f5f6 a5a4 2. e5e6
nodes 1460 nps 73000 q 56% hhits 4%
4-> 0.12 0.00 1. f5f6 g5f5 2. a3d3 a6e6
nodes 6908 nps 86350 q 58% hhits 3%
5-> 0.31 -0.09 1. f5f6 g7f6 2. e5f6 d7d6 3. d4e3
nodes 17859 nps 93502 q 52% hhits 6%
6-> 0.69 0.12 1. f5f6 g7f6 2. e5f6 d7d5 3. c5d6 a6d6
nodes 38199 nps 100523 q 36% hhits 6%
7-> 1.73 0.02 1. f5f6 g7f6 2. e5f6 a6e6 3. a3e3 d7d5 4. c5d6
nodes 112116 nps 107596 q 45% hhits 9%
8-> 4.38 0.08 1. f5f6 g7f6 2. e5f6 a6e6 3. a3a5 e6e2 4. d4f2 e2c2
nodes 299957 nps 113448 q 35% hhits 8%
9-> 17.56 0.16 1. f5f6 g7g6 2. a3a4 g5g4 3. c2c4 g4e4 4. d4c3 c7c6
nodes 1484609 nps 112649 q 41% hhits 10%
10-> 42.40 0.20 1. f5f6 g7g6 2. a3a4 d7d5 3. e5d6 c7d6 4. d4e3 g5e5
5. e3f4 e5c5
nodes 2838138 nps 114233 q 28% hhits 7%
----------------------------------------------------------
nodes 4799971 time 42.41 nps 113177
leaf 3357952 q 1603786 eval 3824785
null 2576438 null-cut 307402
hhits 395391 hexact 253858 hleaves 253524
hput 435376 hoverwrites 1328
leaves 69% quiesc 33% null 53%
null-cut 77% aspwin-suc 100%
hhits 8% hoverwrites 0% husage 8%
White(1): f5f6
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