Bridge cards are narrower and longer than poker cards. Bridge cards have a size of 57 x 89 mm.

Bridge - and in particular contract bridge - is a card game for four people. Two players sitting opposite each other form a team that plays and scores together. French cards with 52 hands are used, there are no jokers.

The goal of the game is for each of the two teams to make as many tricks as possible. In the first phase there is bidding. The bidding is a kind of auction and you try to estimate which team must get how many tricks and whether there is a trump suit. After a team has made its bid by announcing the number of tricks and the trump suit, the second phase is the playing of the cards.
The goal is for one team to at least reach the previously announced trick number; the other team tries to prevent this.

In bridge, there is the peculiarity that of the party that won the bidding, only one player - the so-called solo player - plays in the discard. His teammate lays his cards face up after the first outplay of the left opponent and concedes his cards on the instructions of the sole player.

Today, bridge is understood to be the modern variant of contract bridge, which has been established throughout the world since about 1930 and has largely replaced predecessor versions such as whist or auction bridge.
Bridge is played privately as rubber bridge and also very often in the form of tournaments. In a tournament, the same hands are played at different tables by different players. The winner is the player who achieves better results with his cards than other players with the same cards. So the winner is not the player who gets the strongest cards. Due to this fact, the influence of luck by receiving certain cards is greatly reduced. For this reason, bridge, like the games of Go and chess, is recognized as a sport.

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