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Peaceable armies of queens on boards of size 16 and up
Place more than 37 white and 37 black mutually non-attacking queens on a 16×16 board, or prove 37 is the maximum.
Issues
Questions, sub-problems and requests for help. Break big problems into sub-issues; start a route from any of them.
No closed issues
Issues hold questions, sub-problems and requests for help.