Sum Fun

Have a blast sharpening your mind

Just three simple rules to deliver hours of fun:

1. 1Place a piece into an empty slot on the board.
2. 2If it matches the last digit of the sum of all its neighbours, they get blasted away!
3. 3Repeat until the board is empty.

Sounds simple? It is – and there's more!

• Dozens of boards to discoverHearts, rockets, robots, cats, birds and more, including seasonal collections.
• Collect postcardsUncover and collect unique art in our fortnightly postcard events.
• No time pressure. No stress.Hints and undos for when you get stuck.
• Challenge your friendsEven without internet – simply scan a QR code to share the game.
• Play comfortablyMultiple themes, dark and light.