Questions and answers

Drag every piece from the tray onto the board. The dice beside each row and above each column show how many squares of each colour belong in that line. When a line is right, its die lights up. Light them all and you’ve solved it. Squares with a cross stay empty, and pieces never turn.

You can also try a small puzzle right here.

Yes. Tap Hint under the board for a nudge in the right direction. Every puzzle has exactly one answer, so if a piece seems to fit in two places, look closer at the dice.

Yes, the whole game is free to play. A few worlds are earned by playing and others can be bought. Short ads appear between some levels after level ten, never during the Daily puzzle. Buying one of the bigger worlds, or the launch bundle, turns ads off for good.

Open Skins, tap your collection at the top and choose Restore. Use the same Apple or Google account you bought it with.

Turn on Color assist in Settings. Every colour gets its own small shape, so pieces and dice are easy to tell apart.

One new puzzle every day, the same for everyone. Each day of the week has its own kind of board, from a gentle Monday warm-up to a big Sunday puzzle. Solve five in a week to finish that week’s set.

English, Japanese and Chinese.

The worlds you bought do: open Settings and tap Restore purchases. Your progress, times and profile are saved on the phone itself, so for now a new phone starts from the first level. Your Game Center achievements stay with your Game Center account.