Each day there's one word, name, place or title with its marks taken out: accents like é, ñ and ü, and punctuation like ! ' and -.
Tap a mark in the tray, then tap where it goes. Accents go on letters. Punctuation goes in the dashed gaps.
Press Check. Marks in the right place turn green and stay. Any in the wrong place come off. Each check uses a go, and you have 4.
Stuck? A hint puts one mark in for you, but uses a go.
Every day has a twist. Sunday to Tuesday are gentle, then it gets trickier from Wednesday, with Friday the hardest.
Solve it in 1 or 2 goes without a hint and you unlock the bonus round: name one of the marks for a bonus star. Sometimes it's a rare one, and it goes into the mark glossary.