Quote:
Originally Posted by so cal lurker
I find that distinction very hard to visualize. The picture I get is a held ball, but as Bob says this could be the very rare play that comes out another way.
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The distinction is whether A1 has the option to release it or not and chooses not to verses the ball being pinned by B1 so that A1 can't release it even if desired. A mere touch of the ball doesn't necessarily pin the ball.