Simple to learn, surprisingly deep
Two players take turns dropping a disc into one of seven columns. The disc falls to the lowest free space. The first to make a line of four of their own colour – horizontally, vertically or diagonally – wins. If the grid fills up first, it’s a draw.
Play against the computer on five levels: level 1 plays almost at random, level 3 sees simple threats, and level 5 looks eight moves ahead and is very hard to beat. Or play with a friend on the same phone or tablet – the score is kept for you.
How to use
- Choose the computer (and a level) or two players.
- Tap a column to drop your disc – or press keys 1–7.
- Block your opponent’s lines while building your own.
- Four in a row wins. Tap New game to play again; the score is kept.
Ideas for using it
- Kids. level 1 and 2 give children a real chance to win.
- Strategy practice. try to beat level 5 by playing the centre column first.
- Waiting room. two players, one phone, two minutes per game.
- Classroom. on the board: the class against the computer.