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18 Queens (Posted on 2008-03-25) Difficulty: 3 of 5
On the 4x4 board below, two white and two black queens are placed so that no queens of one color attack any queen of the other color.

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Find a way to place 9 white queens and 9 black queens on an 8x8 chessboard in a similar fashion.

See The Solution Submitted by Brian Smith    
Rating: 3.0000 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: No Subject | Comment 5 of 6 |
(In reply to No Subject by ed bottemiller)

You can get better presentation by swiping the text board and changing the formatting to pre-formatted, from the drop-down list.  Here's ed bottemiller's solution, presented this way:

..QQQ...
...QQ...
Q...Q...
Q.......
Q.......
.....qq.
.q...qqq
.q....qq

 


  Posted by Charlie on 2008-03-25 11:03:23
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