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52D-21

Posted By: David Rockwell
Date: Saturday, 17 October 2009, at 2:53 p.m.

In Response To: 51S-21 (David Rockwell)

The score (after 0 games) is: GNU_bg 0, user 0

Move number 3: user to play 21

GNU_bg160


2O ' ' ' '5X '4X ' '1X5O

2X ' ' ' '5O '3O ' ' '3X

user167

Position ID: 4PPIATDgc/ABMA Match ID: cAkFAAAAAAAA

If you split after 52D, you are making about as big an error as you can make with a rational looking 2nd roll move. In general, slot the ace, do not split on the second move when facing four checkers on the eight point. This is often explained by the attacking potential the opener has against the split back checkers. I am not yet convinced this is the primary reason for the sharp slotting preference, although it is certainly a factor. I am in the midst of deep study trying to understand this concept better. (i.e. I have been spinning my wheels.) In any event, the rule is clear even if the logic is not - Slot facing four on the eight point.

Note that this concept is relevant to the previous position, the counterintuitive 51S-21.

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