Star Battle Puzzles

Star Battle is a grid logic puzzle with one deceptively simple goal: place stars so that every row, every column, and every bold outlined region contains exactly the required number of stars — and no two stars ever touch, not even diagonally. Small boards use one star per row; the classic 10×10 format uses two, which is the version the New York Times publishes under the name Two Not Touch and German magazines print as Doppelstern.

Every board here is generated and verified by a logic engine before it reaches you. That verification is a real promise: each puzzle has exactly one solution, and that solution is reachable through pure deduction — the same technique ladder human solvers use, from simple star-neighbor marks through confinement and counting arguments. If you are stuck, there is always a findable next move. You will never need to guess.

The daily puzzle is a fresh 10×10 two-star board, identical for everyone and playable in a minute or savored over a coffee break. Miss a day and it waits in the archive at its own permanent link. Beyond the daily, the puzzle library covers four sizes — 5×5 and 8×8 with one star, 10×10 with two, and 14×14 with three — each filterable by difficulty, so there is a sensible next step whether you are learning the no-touch rule or chasing forty-minute expert solves.

If you found us through LinkedIn's Queens game, you already know more than you think: Queens is essentially a one-star Star Battle with colored regions, and every tactic you learned there transfers directly. Tap to mark, tap again to star, and let the optional auto-X assist handle the bookkeeping while you do the thinking.