Place stars so every row, column, and region holds exactly K — and no two ever touch. One logical solution, never a guess — on iPhone and iPad.
One shared board a day, the same for everyone — solve it on your own time and build a streak. Or roll unlimited fresh boards in Practice mode.
Play 1-star (the Queens style) for a gentle solve, or 2-star (Two Not Touch) for a deeper challenge — your choice, every board.
Easy, Medium, Hard, and Expert, chosen independently of the variant. Every puzzle has exactly one solution you can reason out — never a guess.
Fully localized in fifteen languages, so the whole game speaks yours — English, French, Spanish, German, Japanese, and more.
Light, Dark, Paper, Dusk, and a colour-blind-friendly Accessible palette that keeps the coloured regions readable in any light.
No ads. No tracking. No accounts. Everything runs on your device, and your progress stays there.
Coming soon to the App Store. iPhone & iPad.
Coming soon to the App Store