Re: [Bug-gnubg] Measuring performance levels 2

[Joern Thyssen]

On Sat, Oct 26, 2002 at 06:05:13AM -0400, Douglas Zare wrote
> 
> > How about 1 closed out, extras on the 23, 10, and 7, versus 13 off with a
> > blot on the 1? 

Just to make sure:

 GNU Backgammon  Position ID: AQAA2rYtAoAAAA
                 Match ID   : cAkAAAAAAAAA
 +13-14-15-16-17-18------19-20-21-22-23-24-+     O: gnubg
 |                  | O |             X  O | OOO 0 points
 |                  |   |                  | OOO
 |                  |   |                  | OOO
 |                  |   |                  | OO
 |                  |   |                  | OO
v|                  |BAR|                  |     (Cube: 1)
 |                  |   |                  |
 |                  |   |                  |
 |                  |   |                  |
 |                  |   | X  X  X  X  X  X |     On roll
 |       X        X |   | X  X  X  X  X  X |     0 points
 +12-11-10--9--8--7-------6--5--4--3--2--1-+     X: jth

> 
> In 90,000 trials, Snowie 3 1-ply wins 15.5% (-0.691 +-0.004). 

gnubg 0-ply 93312 trials:

19.1% (+- 0.0005) or equity -0.6184 +- 0.001

BTW, I had to modify gnubg a bit, since it kept the number of trials in
a 16 bit integer which has maximum value 65535. 

Jørn

-- 
Joern Thyssen, PhD
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