[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums

Quality of spare

Posted By: Nack Ballard
Date: Saturday, 15 March 2014, at 4:46 a.m.

In Response To: Comparison to 32S 11? (Bob Koca)





White is Player 2

score: 0
pip: 162
Unlimited Game
Jacoby Beaver
pip: 167
score: 0

Blue is Player 1
XGID=-a--a-E-C---dEa--c-e----B-:0:0:1:11:0:0:3:0:10

32S-11 [P I40] "&e
(Make 4pt to keep 6pt spare)
White is Player 2

score: 0
pip: 162
Unlimited Game
Jacoby Beaver
pip: 165
score: 0

Blue is Player 1
XGID=-a--a-F-B---dEa--c-e----B-:0:0:1:11:0:0:3:0:10

32S-11 variant [I P18] "&e
(Hitting loose can keep 6pt spare)


A major factor is the quality of the spare(s) you can keep. In the case of 32S-11 (upper left), P (Pointing on the 4pt) is best because that is the way Blue can retain a 6pt spare.

In the variant position in the upper right, Blue starts with an extra 6pt spare (taken from his 8pt). Here, he should hit loose because it is possible to keep a 6pt spare.

By the same token, consider the pair of positions below. They are identical to each other except for Blue's roll. On the left, with 21, he should play P (Point on the 4pt) in order to retain a 6pt spare instead of an 8pt spare.

In the lower right is the OLM position. With 41, Blue should hit loose because it is possible to keep a 6pt spare.

In the caption below each diagram, examine the portion of the nacbracs isolated in red. [For purposes of this analysis, I'm trusting these XG++ evaluations.] P (Pointing on the 4pt) is better in the two lefthand positions. Hitting loose is better than P in the two righthand positions. The swing is substantial within each pair: above it is .058, below it is .069.

........Nactation tutorial
........Explanation of nacbracs

Nack





White is Player 2

score: 0
pip: 146
Unlimited Game
Jacoby Beaver
pip: 154
score: 0

Blue is Player 1
XGID=---aaADBC---cC---c-eb---B-:0:0:1:21:0:0:3:0:10

64S-61P-52U-51H-44P-21 [P A11] "&e
(Make 4pt to keep 6pt spare)
White is Player 2

score: 0
pip: 146
Unlimited Game
Jacoby Beaver
pip: 154
score: 0

Blue is Player 1
XGID=---aaADBC---cC---c-eb---B-:0:0:1:41:0:0:3:0:10

64S-61P-52U-51H-44P-41 [A P58] "&e
(Hitting loose can keep 6pt spare)


Messages In This Thread

 

Post Response
Your Name:
Your E-Mail Address:
Subject:
Message:

If necessary, enter your password below:

Password:
 

 

[ View Thread ] [ Post Response ] [ Return to Index ] [ Read Prev Msg ] [ Read Next Msg ]

BGonline.org Forums is maintained by Stick with WebBBS 5.12.