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Peaceful superqueens (Posted on 2015-12-31) Difficulty: 4 of 5
A "superqueen" is a chess queen that also moves like a knight.
Place four superqueens on a five-by-five board so that no piece attacks another.

If you solve this, try arranging 10 superqueens on a 10-by-10 board so that no piece attacks another.

Both solutions are unique if rotations and reflections are ignored.

by Hilario Fernandez Long.

No Solution Yet Submitted by Ady TZIDON    
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Some Thoughts five-by-five | Comment 1 of 2
The five-by-five is D1 by itself.
Place each one space clockwise of a corner square.

  Posted by Jer on 2015-12-31 14:59:20
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