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On a Grid 2 (Posted on 2007-08-29) Difficulty: 3 of 5
Place eight 'X's on a 4x4 grid so that each 'X' is orthogonally bordered by an even number of 'X's and each empty square is orthogonally bordered by an odd number of 'X's.

Can 18 'X's be placed in a 6x6 grid in this manner?

Note: 'orthogonally' means horizontally or vertically

No Solution Yet Submitted by Brian Smith    
Rating: 4.2500 (4 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Some ThoughtsSome commentsCharlie2007-11-02 12:54:33
re: Solution -- next size w/ half X'edCharlie2007-11-01 14:20:25
re: SolutionPenny2007-11-01 06:52:32
Solutionram2007-11-01 04:26:09
Solutionram2007-11-01 04:15:56
SolutionSolutionram2007-11-01 04:08:25
re(3): SolutionKyle2007-10-31 11:52:59
re(2): SolutionPenny2007-10-31 07:19:50
re: SolutionKyle2007-10-30 14:23:37
SolutionSolutionPenny2007-08-30 11:51:32
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