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Subject: Re: does this look normal?

Author: Dann Corbit

Date: 18:14:31 10/02/03

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On October 02, 2003 at 21:01:23, macaroni wrote:

>does this look like a reasonable branching factor? for this evaluation I had
>killers, history, and captures all turned on as move ordering. I do have null
>moving with R of 2.
>
>Analyzing the position after 1. a3
>1 7 	0 	22 		Nf6
>2 2 	0 	110 		Nf6 d4
110/22 = 5
>3 7 	0 	269 		Nf6 d4 Nc6
269/110 = 2.45
>4 2 	0 	1616 		Nf6 d4 Nc6 Nf3
1616/269 = 6
>5 7 	6 	5012 		Nf6 d4 Nc6 Nc3 e5
5012/1616 = 3.1
>6 2 	39 	38381 		Nf6 d4 Nc6 Nf3 d5 Nc3
38381/5012 = 7.7
>7 4 	269 	246052 		Nf6 d4 Nc6 Nc3 d5 Nf3 Qd6
246052/38381  = 6.4
>8 4 	555 	531125 		Nf6 Nf3 Nc6 Nc3 d5 d4 Qd6 e3
531125/246052 = 2.15
>9 5 	1813 	1674270 	Nf6 Nc3 Nc6 d4 d5 Bf4 Nh5 Be5 Nf6
1674270/531125 = 3.15

Alpha Beta will bring the average from 30-40 in branching factor down to 6.
Your later plies (where it really matters) show a very good branching factor.

>if not. What sort of things can improve it? my quiescent search is still fairly
>basic, no SEE, but it only looks at moves that bring it within 50 of alpha.

Have you read Ernst Heins' book?

• Re: Measuring branching factor Tord Romstad 02:44:49 10/03/03
  • Re: Measuring branching factor Dann Corbit 11:52:53 10/03/03
• Re: does this look normal? Dann Corbit 18:15:49 10/02/03
  • Re: does this look normal? macaroni 18:29:01 10/02/03
    • Re: does this look normal? Dann Corbit 19:46:14 10/02/03
      • Re: does this look normal? (Dead links?) F. Jermann 02:40:52 10/03/03
      • Re: does this look normal? Dave Gomboc 21:19:09 10/02/03
        • Re: does this look normal? Dann Corbit 21:23:13 10/02/03

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