Friday, October 23, 2015

Position 6




is XG Roller++

score: 0
pip: 98
                         


1 point match
                         
pip: 73
score: 0

is Chase

XGID=-BABbCD-C--------a-bccbaa-:0:0:1:61:0:0:0:1:10
to play 61

eXtreme Gammon Version: 2.19.211.pre-release

The 6 is forced, then find a 1.

Over the board, I dismissed 6/5 since it leaves a shot on 66 next turn. Then I had a choice between 3/2 and 2/1. I chose 3/2 for reasons I don't recall and can't reconstruct. Perhaps I simply hallucinated. In any case, 3/2 is a surprisingly large error, one I'm pretty sure I wouldn't have made if I'd approached the problem in the right way.

My poor rolls next turn are 64 and 61, both of which leave a blot, so I should be looking to make those rolls play as constructively as possible. 2/1 is obviously better than 3/2, then, since it allows me to remake the 2pt and have a five point board with either roll.

Here's the rollout. Note the second best move (8/2 6/5) is almost as good, even though it pays off to 66 next turn. My play (8/2 3/2) is much worse, even though it avoids blotting on 66 next turn. Since I will roll 64 or 61 four times as often as 66, planning for those rolls is much more important than avoiding the bad 66.



is XG Roller++

score: 0
pip: 98
                         


1 point match
                         
pip: 73
score: 0

is Chase

XGID=-BABbCD-C--------a-bccbaa-:0:0:1:61:0:0:0:1:10
to play 61

1.Rollout18/1eq: +0.725

Player:
Opponent:
86.25% (G:4.46% B:0.02%)
13.75% (G:0.47% B:0.00%)
Conf.: ± 0.002 (+0.723...+0.727) - [66.1%]
Duration: 33.3 seconds
2.Rollout18/2 6/5eq: +0.725 (-0.001)

Player:
Opponent:
86.23% (G:5.00% B:0.02%)
13.77% (G:0.41% B:0.00%)
Conf.: ± 0.002 (+0.723...+0.726) - [33.9%]
Duration: 37.4 seconds
3.Rollout18/2 3/2eq: +0.708 (-0.017)

Player:
Opponent:
85.41% (G:3.79% B:0.02%)
14.59% (G:0.49% B:0.01%)
Conf.: ± 0.002 (+0.707...+0.710) - [0.0%]
Duration: 36.7 seconds
4.1-ply8/7 8/2eq: +0.161 (-0.564)

Player:
Opponent:
58.04% (G:5.84% B:0.02%)
41.96% (G:7.61% B:0.11%)

 
1 1296 Games rolled with Variance Reduction.
Dice Seed: 77140590
Moves: 3-ply, cube decisions: XG Roller
eXtreme Gammon Version: 2.19.211.pre-release, MET: Kazaross XG2

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