perplexus.info :: General : 18 Queens

18 Queens (Posted on 2008-03-25)

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.

Submitted by Brian Smith

Rating: 3.0000 (3 votes)

Solution: (Hide)

One solution is below. Others can be found in the comments.
+-+-+-+-+-+-+-+-+ | B B | + + + + + + + + + | B B | + + + + + + + + + |W W | + + + + + + + + + | B B| + + + + + + + + + | B B B| + + + + + + + + + | W W | + + + + + + + + + |W W W | + + + + + + + + + |W W | +-+-+-+-+-+-+-+-+

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-02-22 00:59:47
re(2): No Subject	ed bottemiller	2008-03-25 11:09:08
re: No Subject	Charlie	2008-03-25 11:03:23
re: No Subject	Dej Mar	2008-03-25 10:59:15
Solution	Dej Mar	2008-03-25 10:47:24
No Subject	ed bottemiller	2008-03-25 10:32:46
Almost, but not quite	Charlie	2008-03-25 10:18:36

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