Free play: Easy · Medium · Hard · Rules & techniques
All daily puzzles: 🐸 Gridlings · 🌙 Balance · ⭐ Star Battle · 🐾 Trail · ≶ Futoshiki · 🏙 Towers · 🔢 Mini Sudoku · ⚫ Kropki · 🥪 Sandwich · 🌡 Thermometers · ▦ Nonogram
Games about AI: ⌨ Prompt · 🧠 Overfit · 🧪 Mimic · 👁 Overseer · 📉 Minima · 🏭 Singularity Inc. · 🏎 Ghostline · 💥 Block Nova
If you enjoy LinkedIn's Queens or Netflix's daily star puzzle, this is the full-strength version of that habit: the two-star format on a 10×10 board that the one-star clones don't offer, with unlimited practice and an archive of dailies. Sister puzzles: Gridlings.
Place two stars in every row, every column and every outlined region of the 10×10 grid, with no two stars touching, not even diagonally. Tap a cell to place or remove a star.
Yes — a new daily board goes live at 00:00 UTC, the same board for every player worldwide, with streak tracking. Unlimited free play in three difficulties and a full archive of past dailies are also free, with no account and no ads.
Yes. Every published board is machine-verified before release: a solver proves exactly one solution exists and is reachable by logical deduction, so there is always a provable next step.