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Re: [Bug-gnubg] Cubeful equities in bearoff
From: |
Joern Thyssen |
Subject: |
Re: [Bug-gnubg] Cubeful equities in bearoff |
Date: |
Sun, 1 Dec 2002 20:55:55 +0000 |
User-agent: |
Mutt/1.4i |
On Sun, Dec 01, 2002 at 02:35:10PM -0500, address@hidden wrote
> That's excellent.
> Up to how many checkers and how many points does the cubeful bearoff database
> work?
The new 5MB dataase (http://users.skynet.be/bk228456/gnubg_ts0.exe)
covers 6 chequers on 6 points.
There is source code for a program that can generate larger databases
(I'm don't think it's included in the windows builds).
So far I've managed to generate 8 chequers database, although I had some
trouble generating the 9 chequer database. In principle the program can
generate an arbitrary one. However, the size increases very fast:
*Chequers* *Points* *Number of positions**Size/MB*
6 6 853,776 6
7 6 2,944,656 22
8 6 9,018,009 68
9 6 25,050,025 191
10 6 64,128,064 489
11 6 153,165,376 1,168
12 6 344,622,096 2,629
13 6 736,145,424 5,616
14 6 1,502,337,600 11,461
15 6 2,944,581,696 22,465
I guess the program needs some tuning...
Jørn