Drop your discs, line up four. Play a friend online with challenges, a rating and match history, take on a near-perfect computer, or pass-and-play on one device.
Challenge a friend by name or code, or anyone in the lobby. A ready-check on both sides, a 10-minute clock each, and every result feeds a separate rating.
Connect Four is a solved game. The built-in engine searches deep with alpha-beta pruning — it never misses a win or a threat, and it plays the endgame flawlessly.
One board, one device, no sign-in. Alternate dropping discs at the same screen.
A five-minute game with real strategy — control the centre, set up double threats, and don't hand your opponent the square above your own.
