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Match Play. Red leads 2-0 to 7. How should Red play 21?
This is an exercise in logic. Red cannot hope to run all his checkers around the board while White languishes on the bar. He has too much work to do.
Therefore, he needs to make his 6-pt. Ergo, he should slot that point now by playing 7/6 with the ace. Logic further says that he needs to bring a builder to a covering position as soon as possible. Therefore, the two must be played 14/12.
It is easy when you think it through. 23/22, 14/12 does not address the requirements of the position and is a blunder.