Puzzle library / 9×9
9×9 Queens Puzzles
The 9×9 board steps up to nine regions across eighty-one cells, rewarding patient counting and careful diagonal work. This is where region-versus-line arguments start to shine. The numbered 9×9 collection is a natural home for solvers ready for a longer, more advanced deduction.
Difficulty: Advanced
All 300 9×9 puzzles
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