Position 56b, page 138
From The Backgammon Book, by Oswald Jacoby and John R. Crawford

White to play 5-1.

If you break from the six point and black fails to enter and you roll double 6, double 5, double 4, 6-5, 6-4, 6-3, 6-2, 5-4, 5-3, or 5-2 (a total of seventeen rolls), you will have to leave a blot.

The correct play is to break from the five point. In this position you will have to leave a blot only if you roll double 6, double 5, double 4, 6-1, or 5-1 (a total of only seven bad rolls).

5/4, 5/off
Rollout 
XG logo
Tom Keith 2013 
Money play
Black owns 2-cube
White rolls 5-1

1296 games with VR
Checker play: 3-ply
Cube play: XG Roller
XGID=aCBBBBB----------b-cbbbc--:1:-1:1:51:0:0:0:0

5-1: Game BG   Equity
1 5/4, 5/off W
L
.9459
.0541
.0825
.0000
.0006
.0000
+0.9512 x  *

Previous Position
No. 56a, page 138
Next Position
No. 59, page 140

List of Positions from The Backgammon Book

The Backgammon Book (1970), by Oswald Jacoby and John R. Crawford

Backgammon Galore : Books