Author: Dann Corbit
Date: 13:12:38 08/30/02
Go up one level in this thread
On August 30, 2002 at 13:56:09, Omid David wrote: >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% infinite > 3-> 0.04 -0.07 1. f5f6 a5a4 2. e5e6 > nodes 1460 nps 73000 q 56% hhits 4% 2x > 4-> 0.12 0.00 1. f5f6 g5f5 2. a3d3 a6e6 > nodes 6908 nps 86350 q 58% hhits 3% 3x > 5-> 0.31 -0.09 1. f5f6 g7f6 2. e5f6 d7d6 3. d4e3 > nodes 17859 nps 93502 q 52% hhits 6% 2.6x > 6-> 0.69 0.12 1. f5f6 g7f6 2. e5f6 d7d5 3. c5d6 a6d6 > nodes 38199 nps 100523 q 36% hhits 6% 2.2x > 7-> 1.73 0.02 1. f5f6 g7f6 2. e5f6 a6e6 3. a3e3 d7d5 4. c5d6 > nodes 112116 nps 107596 q 45% hhits 9% 2.5x > 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% 2.5x > 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% 4x > 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% 2.4x >---------------------------------------------------------- >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 Looks like 2.5x answers pretty well.
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