Queens Game (playthequeensgame.com)

This Queens Game is an independent site for the region puzzle LinkedIn made popular: place exactly one queen in every row, every column and every colour region, with no two queens touching, not even diagonally. It has its own puzzles and is not tied to LinkedIn.

The Daily Challenge goes live at UTC midnight with three boards, 8x8, 9x9 and 10x10. A counter shows how many of the three you have solved and how long until the next set; finishing all three completes the day and extends your streak. Each board is the same for everyone, so times can be compared, and unlike LinkedIn's puzzle there is no 24-hour lock: every past date stays open in the archive.

The Beat the Clock tab is a separate once-a-day sprint: everyone gets the same sequence of easy-rules boards and solves as many as they can in one minute, with only the first finish stored for the day's leaderboard. On the boards you have Hint, Undo and Reset, and an option to mark X's around each queen automatically. A hint names the next deduction and highlights the cells it rules out, so it teaches a technique rather than handing over a queen. Unlimited mode runs from 5x5 to 12x12, and a library holds 1,800 numbered boards from 7x7 to 12x12.

No account is needed to play. Signing in is optional and adds the daily leaderboards, synced progress and a ranked mode, where two players race on the same board for an Elo rating or a friend is invited by link. The site is paid for by ads, shown after a consent banner.

It suits LinkedIn Queens players who want more than one board a day and the option of a speed round.