Board game
Drop one disc at a time, block the opposing color, and connect four vertically, horizontally, or diagonally.
About the game
Connect Four is a quick grid strategy game against AI or a friend. Every disc falls to the lowest open space in its column, so a useful move should build your own line while stopping the opponent’s next threat.
Quick guide
Players take turns dropping a disc into one of seven columns. The disc falls to the lowest empty space. The first player to connect four pieces horizontally, vertically, or diagonally wins. If the grid fills without a four-piece line, the game is a draw.
The centre column participates in more possible winning lines than an edge, so it is a strong opening choice. Check the opponent's immediate threats before extending your own line. The strongest tactic is a double threat: create two different winning spaces so the opponent can block only one on the next turn. Avoid placing a disc that gives the other player a winning square directly above it.
Connect Four is about placing new pieces under gravity; pieces never move after they enter the grid. Checkers starts with every piece already on the board and revolves around movement, captures, and promotion. Play both to practise different kinds of planning, or visit all games and the QuikDen home page.
Choose a column and drop one disc per turn. Connect four of your color horizontally, vertically, or diagonally before your opponent.
You can play this browser version free on QuikDen with no signup or download.
Its simple rules suit many school-age children and adults. Younger players may need help spotting diagonal lines and planning ahead.
