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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.

Q

Q

Q

Q

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)

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No Subject | Comment 2 of 7 |

Let's try:

..QQQ...

...QQ...

Q...Q...

Q.......

Q.......

.....qq.

.q...qqq

.q....qq

Sorry, I don't have a way to present this in a better graphic. (Q are one color, q the other).


  Posted by ed bottemiller on 2008-03-25 10:32:46
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