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Pool Ball (Posted on 2005-04-28) Difficulty: 3 of 5
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.

No Solution Yet Submitted by Juggler    
Rating: 3.5000 (2 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
played poolsean2005-08-16 21:07:49
Questioni think i have a solutionJill2005-07-14 01:46:10
no spoilerj4411672005-06-26 00:03:33
re: wasn't very hardNosher2005-06-09 02:54:26
Some Thoughtswasn't very hardJoy2005-05-28 01:20:34
Pool BallRebecca Cavenah2005-05-05 21:06:21
SolutionReasoned solutionTristan2005-04-29 16:07:02
re: either extremely simple or impossible: ConfusionsSam2005-04-29 11:36:59
either extremely simple or impossibleNik2005-04-29 03:40:37
re: Seems not to matterAmon2005-04-29 02:27:11
ConsensusJonathan Chang2005-04-29 02:21:26
SolutionSeems not to matterCharlie2005-04-28 15:14:53
re: Tedious workSam2005-04-28 15:11:06
Tedious workJonathan Chang2005-04-28 14:22:14
UnusualJonathan Chang2005-04-28 14:14:34
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