I checked and the previous problem of the noise making a difference even
though every move is forced is gone now.
I did a RO of the opening position with RO playing as intermediate vs. expert
player. I obtained that the intermediate wins about
17% of 1 point matches. So something is wrong, possibly just labeling the
amount of noise given as being intermediate. Note that
2200 vs 800 ELO gives about 17% win chance which is more like world class vs.
beginner.
Also it seems strange that the opening roll is not worth anything. When i
gave the intermediate player the opening roll (non doubles)
the intermediate won 16.6668% of the matches. When the expert got it the
intermediate won 17.2225% matches. Could it really be
that the play is so bad that the intermediate does better to not win the
opening roll? Or did I mess something up? Thanks for any help,
Bob Koca
This is with the expert having first roll:
GNU Backgammon Position ID: 4HPwATDgc/AIMA Match ID :
MAElAAAAAAAA +-1--2--3--4--5--6-------7--8--9-10-11-12-+ O: gnubg | X
O | | O X | 0 points | X O | | O
X | Rolled 21 | O | | O X | |
O | | X | | O | |
X | | |BAR| |^ 1 point match
(Cube: 1) | X | | | |
X | | O | | X | | X O |
| O X | | X O | | O X | | X
O O | 0 points +24-23-22-21-20-19------18-17-16-15-14-13-+ X: user
1. Rollout 16/13 MWC: 17.22248% 0.172225
0.051257 0.006252 - 0.827775 0.490876 0.128110 CL 17.22248% [0.006618
0.005328 0.001462 - 0.006618 0.009700 0.008089 CL 0.66179%] Full
cubeless rollout with var.redn. 1296 games, rollout as initial position,
Mersenne Twister dice generator with seed 24000 Player 0: Play:
0-ply cubeful, noise 0.04 (d) [intermediate] Cube: 0-ply cubeful, noise
0.04 (d) Player 1: Play: 0-ply cubeful [expert] Cube:
0-ply cubeful, noise 0.04 (d)
And This is with the intermediate having the first roll:
GNU Backgammon Position ID: 4HPwATDgc/AgMA Match ID
: cAktAAAAAAAA +24-23-22-21-20-19------18-17-16-15-14-13-+ O: gnubg | X
O | | X O X | 0 points | X O | |
O X | | O | | O X | |
O | | X | | O | |
| | |BAR| |v 1 point match (Cube: 1)
| X | | O | | X | |
O | | X | | X O | | O
X | | X O | Rolled 23 | O X | | X
O | 0 points +-1--2--3--4--5--6-------7--8--9-10-11-12-+ X: user
1. Rollout 18/13 MWC: 83.33321%
0.833332 0.487893 0.118926 - 0.166668 0.041701 0.003942 CL 83.33321%
[0.006815 0.009393 0.008023 - 0.006815 0.006001 0.001675 CL 0.68155%]
Full cubeless rollout with var.redn. 1296 games, rollout as initial
position, Mersenne Twister dice generator with seed 24000 Player 0:
Play: 0-ply cubeful, noise 0.04 (d) [intermediate] Cube: 0-ply
cubeful, noise 0.04 (d) Player 1: Play: 0-ply cubeful [expert]
Cube: 0-ply cubeful, noise 0.04 (d)
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