In four-ball match play, are you allowed to deliberately use your partner’s ball as a backstop? It seems wrong, but I can’t seem to find the prohibition against it.—David Sainsbury, via email
That’s because there isn’t a problem in match play, where the players are free to make an agreement along these lines.
That said, if one’s opponents request that a ball on the putting green be marked because they think failure to do so would help your team, the ball must be lifted.
Any agreements made on this front in stroke play would result in the general penalty once a stroke is made with that ball in place.
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