Tap a cell to select it, then tap one of the digit buttons to enter your answer.
Tapping an already-selected cell flips it to note mode. You can then toggle small candidate digits on and off using the digit buttons.
The digit assistant ✨ partially solves your puzzle using the simplest techniques, leaving the harder moves to you.
Stuck? The hint button 💡 shows you the next step.
When you solve a puzzle from the start, without peeking at a hint (seeing a hint card counts as a peek) and without a check that found a mistake, the grid celebrates with a color-cycling animation and applause. Any other win gets a single flash and a ta-da, including a win on a game that arrived with progress already on it.