Dog-gone clever logic puzzles
Place one Arnold in every row, column and colour, and never let two touch. A fresh Daily Challenge every day, and levels that never run out.
Coming soon to the App Store
How to play
- One Arnold in every row, column and colour.
- Arnolds can’t touch, not even diagonally.
- Tap a cell to cross it out. Drag to cross lots.
- Double-tap to place Arnold.
- A wrong Arnold costs a treat. Lose all three and it’s nap time.
Endless levels
Level after level, with no end. They start gentle, then get properly tricky, across four board sizes from Easy 5×5 to Extreme 10×10. Earn up to three stars on each and replay any you’ve solved.
Daily Challenge
One new puzzle every day, the same for everyone. Solve it to keep your streak going.
Hints that teach
Stuck? A hint shows you the next step and explains the technique behind it, so you learn as you play. You earn new hints as you solve.
Made to relax
Gentle music and satisfying sounds, plays fully offline, and no ads, no accounts and no tracking. Every puzzle has exactly one answer, reachable by logic alone.
Have a look
