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Unfilled grid (Posted on 2006-05-23) Difficulty: 3 of 5
Fill as much of a 6x6 grid with the letters A, B, C, D, E, F so no two of the same letter are in the same row, column or diagonal.

It is impossible to entirely fill the grid, but what is the largest number of letters that may be placed?

See The Solution Submitted by Jer    
Rating: 4.1429 (7 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
answer/solutionnick barr2006-05-30 14:25:58
re: Possible solution.Charlie2006-05-23 23:57:51
Some ThoughtsPossible solution.Dej Mar2006-05-23 11:42:33
Solutionprogram finishedCharlie2006-05-23 10:24:14
Hints/Tipscomputer program still running, but so far...Charlie2006-05-23 09:41:16
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