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Difficulty in explaining wastage/overage

Posted By: ah_clem
Date: Friday, 3 January 2025, at 1:37 a.m.

In Response To: Difficulty in explaining wastage/overage (Jason Lee)

FULL DISCLOSURE: I am not a backgammon teacher.

Have you tried putting a position like this in front of Gabriel? Blue is ahead in the race 6 to 4 and on roll. Every race formula that doesn't use an adjusted pipcount would say it's clear D/P since blue is up by 50% in the pipcount.

But it's not a double; cubing is such a blunder that it's a beaver. Why? All the wastage.

As for wastage in match play, maybe start with DMP and get him to understand why gammons are of no use at DMP and go from there.





White is Player 2

score: 0
pip: 6
Unlimited Game
Jacoby Beaver
pip: 4
score: 0

Blue is Player 1
XGID=-D-----------------a------:0:0:1:00:0:0:3:0:10
Blue on roll, cube action?

Analyzed in XG Roller+ No double Double/Take
Player Winning Chances: 37.50% (G:0.00% B:0.00%) 37.50% (G:0.00% B:0.00%)
Opponent Winning Chances: 62.50% (G:0.00% B:0.00%) 62.50% (G:0.00% B:0.00%)
Cubeless Equities -0.250 -0.500
Cubeful Equities
No double:-0.667
Double/Beaver:-2.000 (-1.333)
Double/Pass:+1.000 (+1.667)
Best Cube action: No double / Beaver
Percentage of wrong pass needed to make the double decision right: 30.8%

eXtreme Gammon Version: 2.10

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