| |
|---|
         
 
         
 | | 64S-32H-44 | | |
|---|
Position ID: wXPwATDgc+FBQA Match ID: cAkSAAAAAAAA
|
For a roll of doublets, members of the B (Both) family make 2 moves on the far side of the board, and 2 moves down (i.e, to or within the outer board).
In the position 64S-32H-44, there is only 1 way to make 2 moves on the far side: bar/21, 18/14. After that, there are 2 ways to move 2 checkers down: 14/10 13/9 and 13/9(2). Combining them produces the only two members in the B (Both) family.
- bar/21, 18/14, 14/10, 13/9
- bar/21, 18/14, 13/9(2)
Neither one hits, and both of them make the 9pt. Therefore, the ranking will be decided based on the destinations and midway landing spots of the blots and spares that are moved in the plays.
Here is the technique I give in my Procedural Description of Hit/More/Six:
- Home Board — Begin at the 6pt, and search down to the 1pt, until you find a blot or spare destination that exists in one position, but not in the the other. The position which has the blot or spare ranks higher in the Nactation family.
- Far Side — Otherwise, begin at the 13pt, and search out to the 24pt, until you find a blot or spare destination that exists in one position, but not in the the other. The position which has the blot or spare ranks higher in the Nactation family.
- Outer Board — Otherwise, begin at the 7pt, and search out to the 12pt, until you find a blot or spare destination that exists in one position, but not in the the other. The position which has the blot or spare ranks lower in the Nactation family.
Now, the first checker that is played 13/9 makes the 9pt. It does not count as a blot or spare. If a 2nd checker is played 13/9, however, that checker becomes a spare, and so must be counted when we check destinations. The sequence goes like this:
- Home board — No blots or spares landed inside.
- Far side — Begin at the midpoint, checking points in sequence. The first blot is found on the 14pt. Both candidate plays move to or through the 14pt, so that blot destination is a tie. Continuing to the 21pt, we find that both candidate plays also leave a blot there, so again we have a tie.
- Outer board — Begin at the 7pt, and scan points in sequence. When you find a blot or spare destination in one position that does not exist in the other, the play with the blot/spare destination loses. It ranks lower in the family than the play that does not have a blot/spare destination on the same point. In this case, we come upon the spare that landed on the 9pt, and note that the other play does not have a spare on the 9pt. The play with the spare ranks lower than the play without it. At this point, comparison stops. The checker on the 10pt is never examined. It might just as well be on the 11pt, or even not present at all. The issue is decided as soon as the spare on the 9pt is identified.
|