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Letter Swap (Posted on 2007-01-19) Difficulty: 2 of 5
The 26 letters of the alphabet were divided into two piles according to a simple rule. Two letters were then swapped leaving the piles as follows.

Pile 1: a,c,e,g,j,o,q,s,u,v,w,y,z
Pile 2: b,d,f,h,i,k,l,m,n,p,r,t,x

Which two letters should be swapped to return each pile to its original composition?

See The Solution Submitted by Vernon Lewis    
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  Subject Author Date
CloseVernon Lewis2007-01-23 06:53:14
re: With a little help from Small Hint (Possible Spoiler)Charlie2007-01-22 14:48:52
SolutionWith a little help from Small Hint (Possible Spoiler)Syzygy2007-01-22 08:55:25
Hints/TipsSmall HintVernon Lewis2007-01-21 03:21:15
re(3): Just a guessVernon Lewis2007-01-19 17:03:15
re(2): Just a guessLeming2007-01-19 14:10:54
re: Just a guessVernon Lewis2007-01-19 13:21:12
Just a guessLeming2007-01-19 11:39:09
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