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bearoff formula for around 20 pips

Posted By: Michael Nielsen
Date: Wednesday, 14 November 2012, at 8:05 p.m.

In Response To: bearoff formula for around 20 pips (Bob Koca)

I noticed (and was confused by this) when I recently studied some short bearoffs. Another example:
White is Player 2

score: 0
pip: 13
Unlimited Game
Jacoby Beaver
pip: 13
score: 0

Blue is Player 1
XGID=---CA----------------ac---: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: 74.63% (G:0.00% B:0.00%) 74.63% (G:0.00% B:0.00%)
Opponent Winning Chances: 25.37% (G:0.00% B:0.00%) 25.37% (G:0.00% B:0.00%)
Cubeless Equities +0.493 +0.985
Cubeful Equities
No double:+0.676 (-0.312)
Double/Take:+0.988
Double/Pass:+1.000 (+0.012)
Best Cube action: Double / Take

eXtreme Gammon Version: 2.03




White is Player 2

score: 0
pip: 11
Unlimited Game
Jacoby Beaver
pip: 11
score: 0

Blue is Player 1
XGID=--AC------------------ca--: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: 70.64% (G:0.00% B:0.00%) 70.64% (G:0.00% B:0.00%)
Opponent Winning Chances: 29.36% (G:0.00% B:0.00%) 29.36% (G:0.00% B:0.00%)
Cubeless Equities +0.413 +0.825
Cubeful Equities
No double:+0.512 (-0.185)
Double/Take:+0.697
Double/Pass:+1.000 (+0.303)
Best Cube action: Double / Take

eXtreme Gammon Version: 2.03

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