Cube Handling

 Closed board cube decisions

 From: Dan Pelton Address: dpeltonil@yahoo.com Date: 3 January 2009 Subject: Closed Board Cube Decision Rule of Thumb Forum: BGonline.org Forums

```Does anybody have a good rule of thumb for how many checkers the leader can
have borne off when trailer has a closed board with the leader having one
on the bar?  I'm looking for the doubling window, when is it a no
double/take, double/take, double/drop and too good to double/drop.

Also 2 on the bar.

Assume the leader has a speed board, all checkers on ace and deuce points.
Assume trailer on roll.
```

 Neil Kazaross  writes: ```Rule #1. If you have a fast speed board and 5 checkers off, you can take. If this position is a bare pass, no one can play it well enough to expect to cost you money in a prop anyhow. 24 23 22 21 20 19 18 17 16 15 14 13 +---+---+---+---+---+---+---+---+---+---+---+---+---+ O | O O | | | O | O O | | | O | O O | | | O | O O | | | O | O | | | | | O | | | | | | | | | | | X X X | | | | X X X X X X | | | | X X X X X X | | | +---+---+---+---+---+---+---+---+---+---+---+---+---+ 1 2 3 4 5 6 7 8 9 10 11 12 Rule #2. Here you have a pass, but it is a close pass, and X will likely give up a bit playing it. I'd pass for money vs a world-class player, but in general the spares aren't perfectly placed and you won't lose much taking this situation if at all if X has less than perfect spares. 24 23 22 21 20 19 18 17 16 15 14 13 +---+---+---+---+---+---+---+---+---+---+---+---+---+ OOO | O | | | OO | O | | | OO | | | | OO | | | | OO | | | | | | O | | | | O | | | | | | | X X X | | | | X X X X X X | | | | X X X X X X | | | +---+---+---+---+---+---+---+---+---+---+---+---+---+ 1 2 3 4 5 6 7 8 9 10 11 12 ```

Cube Handling

Against a weaker opponent  (Kit Woolsey, July 1994)
Closed board cube decisions  (Dan Pelton+, Jan 2009)
Cube concepts  (Peter Bell, Aug 1995)
Early game blitzes  (kruidenbuiltje, Jan 2011)
Early-late ratio  (Tom Keith, Sept 2003)
Endgame close out: Michael's 432 rule  (Michael Bo Hansen+, Feb 1998)
Endgame close out: Spleischft formula  (Simon Larsen, Sept 1999)
Endgame closeout: win percentages  (David Rubin+, Oct 2010)
Evaluating the position  (Daniel Murphy, Feb 2001)
Evaluating the position  (Daniel Murphy, Mar 2000)
How does rake affect cube actions?  (Paul Epstein+, Sept 2005)
How to use the doubling cube  (Michael J. Zehr, Nov 1993)
Liveliness of the cube  (Kit Woolsey, Apr 1997)
PRAT--Position, Race, and Threats  (Alan Webb, Feb 2001)
Playing your opponent  (Morris Pearl+, Jan 2002)
References  (Chuck Bower, Nov 1997)
Robertie's rule  (Chuck Bower, Sept 2006)
Rough guidelines  (Michael J. Zehr, Dec 1993)
The take/pass decision  (Otis+, Aug 2007)
Too good to double  (Michael J. Zehr, May 1997)
Too good to double--Janowski's formula  (Chuck Bower, Jan 1997)
Value of an ace-point game  (Raccoon+, June 2006)
Value of an ace-point game  (Øystein Johansen, Aug 2000)
Volatility  (Chuck Bower, Oct 1998)
Volatility  (Kit Woolsey, Sept 1996)
When to accept a double  (Daniel Murphy+, Feb 2001)
When to beaver  (Walter Trice, Aug 1999)
When to double  (Kit Woolsey, Nov 1994)
With the Jacoby rule  (KL Gerber+, Nov 2002)
With the Jacoby rule  (Gary Wong, Dec 1997)
Woolsey's law  (PersianLord+, Mar 2008)
Woolsey's law  (Kit Woolsey, Sept 1996)
Words of wisdom  (Chris C., Dec 2003)