Chess strategy
What Is the Bishop Pair in Chess?
The bishop pair means having both of your bishops while your opponent has lost one or both of theirs. Two bishops cover squares of both colors, so together they are often stronger than a bishop and knight or two knights, especially in open positions.
Example
1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6
In this Caro-Kann line Black trades the light-squared bishop for the knight on f3. White now has the bishop pair. Black's pawns go to light squares, such as c6, d5, and e6, to limit the light-squared bishop.
Why two bishops are strong
One bishop only ever sees half the board. Two bishops cover both colors, so there is no square color the opponent can safely hide on. They work well together in long diagonals and can control a wide area from a distance.
Many players and studies value the bishop pair at about half a pawn on average. That is a rough guide, not a rule, and the real value depends on the position.
When the bishop pair matters most
Bishops thrive in open positions with pawns on both sides of the board. As pawns come off, the long diagonals open and the bishops gain scope. In the endgame, the bishop pair is often a serious advantage against a bishop and knight.
In closed positions with fixed pawn chains, knights can be just as good or better, because they can jump over pawns while the bishops are blocked.
Playing with and against the bishop pair
The side with the bishops usually wants to open the position with pawn breaks. The other side wants to keep it closed, fix pawns on the color of a bishop, and find strong squares for the knights.
Trading one of the bishops, even for a knight, removes the advantage. That is why the side against the bishops often looks for a chance to exchange one of them.
Common questions
Is the bishop pair worth giving up a pawn?
Sometimes, in open positions where the bishops become very active. In most positions it is a smaller advantage than a clean extra pawn.
Are two bishops better than two knights?
Usually, in open positions and in endgames with pawns on both wings. In closed positions with locked pawns, knights can be equal or better.
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