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Not the best roll

Posted By: pierrez
Date: Thursday, 23 May 2024, at 7:12 a.m.

In Response To: Not the best roll (ah_clem)

In this position do not reverse the rule, “roll the prime from behind” with ”dismantle the prime from the front”, by playing 5/4*, 5/2.

It is a subtle blunder.

The top priority is avoiding to have the white checker at the foot of our prime. By playing 5/4*, 5/2, we allow white to reach the 5 point with 15 rolls before possible final deliverance with all 6s.

By playing 7/6, 7/4*, it doesn’t matter whether we are hit or double hit, these checkers will recirculate. What matters is that white will never be at the edge of the prime, whatever she rolls.





White is Joueur 2

score: 0
pip: 41
5 point match
pip: 94
score: 0

Blue is Joueur 1
XGID=-BA-aBBBBBB------------fh-:1:-1:1:31:0:0:0:5:10
Blue to play 31

1.Rollout17/6 7/4* eq: +0,261
Player:
Opponent:
68,76% (G:2,63% B:0,04%)
31,24% (G:5,10% B:0,02%)
Conf.: ± 0,005 (+0,256...+0,266) - [100,0%]
Duration: 5 minutes 25 seconds
2.Rollout17/4* 4/3eq: +0,182 (-0,079)
Player:
Opponent:
66,82% (G:2,48% B:0,04%)
33,18% (G:8,29% B:0,05%)
Conf.: ± 0,005 (+0,177...+0,187) - [0,0%]
Duration: 5 minutes 45 seconds
3.Rollout15/2 5/4* eq: +0,138 (-0,123)
Player:
Opponent:
62,72% (G:2,13% B:0,03%)
37,28% (G:4,18% B:0,04%)
Conf.: ± 0,005 (+0,133...+0,143) - [0,0%]
Duration: 4 minutes 29 seconds
4.3-ply7/3eq: +0,085 (-0,176)
Player:
Opponent:
62,68% (G:2,74% B:0,13%)
37,32% (G:5,24% B:0,01%)
5.3-ply8/4* eq: +0,082 (-0,179)
Player:
Opponent:
63,56% (G:2,73% B:0,15%)
36,44% (G:8,41% B:0,00%)
1 1296 Games rolled with Variance Reduction.
Moves: 3-ply, cube decisions: XG Roller

eXtreme Gammon Version: 2.10, MET: Kazaross XG2

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