在每一行、每一列和每个颜色区域各放置恰好一枚皇后。
任意两枚皇后不能共行、共列或共对角线——用X标记追踪皇后会攻击的格子。
从最小的色区开始:候选格最少,排除得最多。
Queens is the daily spatial puzzle that fuses chess logic with region constraints. Every board is a grid of colored territories, and your task is to place exactly one queen in each row, each column and each color region — with the twist that any two queens sharing a row, column or even a diagonal would attack each other. The colored regions are what make Queens special: they force your eye to jump around the board and turn familiar chess thinking into something fresh. Each day brings a new official board in four sizes, from friendly 7×7 grids to fiendish larger ones, so the daily set takes just a few minutes but delivers a genuine deduction workout. Tap to place a queen, tap again to mark an X where a queen cannot go, and use the built-in conflict highlighting to learn from mistakes. Hints reveal one safe placement when you are truly stuck. It is completely free, needs no download or account, and runs equally well on desktop and mobile browsers — a perfect five-minute daily brain warm-up.