You have 15 pool balls arranged in a triangle.

What is the greatest number of balls you will ever have to swap in order to ensure that they are all in the correct position at the start of the game?

An allowable position is either the one in the diagram above, the same position mirrored left-to-right, or either of these arrangements with the red and yellow balls switched.

(In reply to Seems not to matter by Charlie)

holy crap~!!!
haha a normal game becomes a mathematical question now eh?
i don't even wanna figure this out anymore...
and RE: JC's "Consensus"
i believe he's correct? "least" WOULD sound more correct? haha

Posted by Amon on 2005-04-29 02:27:11