Difficulty :

Connect four is a two player game. Each turn, a player drops a ball into a column of a 6x7 grid. The player who has 4 balls in a row (horizontally, vertically or in diagonal) wins. The game can also end with a draw. You play against the computer and you start first.

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Game strategy
One of the most important strategy in the game is to play as much as possible in the middle column. Indeed, all connect-four possibilities that are horizontal or diagonal must use the middle column so if you control this column it will be very hard for your opponent to have 4 in a row. You should also look a few moves ahead. Watch out if your opponent creates three in a row with an open playable space on both sides and try to avoid it by paying attention as soon as the opponent has two in a row.