grenv: As white I would have doubled at move 35, once gammon was out of play. As a matter of principle black must pay to play for a miracle. Psychologically, black is very likely to drop and pat herself on the back for saving gammon.

The only other thing I noticed on a quick scan is that at move 29, black should have moved a blot to the midpoint (black's 12 point) in order to give herself a return shot in the event white rolls double six.