Queenfest VI: Peaceful Coexistence
By Jeff Coakley
Queenfest returns once again. As usual, the puzzles involve multiple queens. The task is to arrange the queens on the board to achieve certain goals.
The first puzzle is an example of independent domination. “Independent” because the queens do not protect each other. “Domination” because all vacant squares are under their control.
Queenfest #19 (six queens)
Place six queens on the board
so that no queen is ...
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