FIBS Board backgammon forum
Backgammon => Fibsboard Forum Matches => FFM 11 => Topic started by: diane on February 21, 2012, 11:05:08 AM
(http://www.fibsboard.com/fibsboard-forum-match-11/game-5-move-18-ah_clem-5-2/?action=dlattach;attach=7326;image)
I'm going to make the two point here. The other option is 24/22 9/4.
The usual wisdom in a backgame is to make your points in order and emphasize mobility, and this advice argues for 24/22 9/4. But this isn't really a backgame - it's more of a holding game although somewhat of an odd one.
So I'm going to make a fourth homeboard point and cover the blot, which seems more "normal" than leaving the blot uncovered.
9/2
Housekeeping note: I'm off on another ski trip, this one to Canada. There's supposed to be wi-fi at the condo, so I should be able to play along on my ipod touch. But comments will be brief because I hate typing on the damned thing.
In other news, I'm doing a rollout of this play - anybody want to weigh on on the merits of my choice or alternatives? I'll post the rollout later today.
ROLLOUT
Spoiler
So, who hits loose here?
1. Rollout 9/4 5/3* Eq.: -0.187
0.406 0.129 0.025 - 0.594 0.424 0.117 CL -0.187 CF -0.187
[0.003 0.005 0.003 - 0.003 0.006 0.006 CL 0.005 CF 0.005]
2. Rollout 9/2 Eq.: -0.217 ( -0.030)
0.391 0.150 0.016 - 0.609 0.329 0.051 CL -0.217 CF -0.217
[0.002 0.005 0.002 - 0.002 0.008 0.004 CL 0.004 CF 0.004]
3. Rollout 18/13 5/3* Eq.: -0.254 ( -0.067)
0.373 0.116 0.018 - 0.627 0.502 0.245 CL -0.254 CF -0.254
[0.003 0.005 0.002 - 0.003 0.006 0.008 CL 0.006 CF 0.006]
4. Rollout 24/22 9/4 Eq.: -0.273 ( -0.086)
0.363 0.116 0.008 - 0.637 0.362 0.061 CL -0.273 CF -0.273
[0.002 0.005 0.001 - 0.002 0.007 0.005 CL 0.004 CF 0.004]
Full cubeful rollout with var.redn.
1296 games, Mersenne Twister dice gen. with seed 913183576 and
quasi-random dice
Play: world class 2-ply cubeful prune [world class]
keep the first 0 0-ply moves and up to 8 more moves within
equity 0.16
Skip pruning for 1-ply moves.
Cube: 2-ply cubeful prune [world class]