The bishop pair: the small advantage that wins games

Two bishops together are worth more than the sum of their parts. It’s one of the subtlest advantages in chess — you don’t see it all at once — but grandmasters chase it game after game. It’s called the bishop pair.

What it actually is

You have the bishop pair when you keep both of your bishops while your opponent is left with only one bishop and a knight (or two knights). Sounds like a small thing. It isn’t.

Why? Remember that each bishop lives on only one color of squares. On its own, each has a blind spot: half the board. But together, a light-squared bishop and a dark-squared one cover everything. There’s no corner that escapes them. The opponent’s knight, on the other hand, can never cover both colors at once.

Why it’s an advantage

The bishop pair is a small but lasting advantage. It doesn’t deliver mate on its own, but it has a very rare virtue: it doesn’t disappear. As long as the center stays open, those two bishops will keep dictating terms move after move, and in a long game that adds up.

It shines especially in two moments:

• In open positions, where the bishops’ long range unfolds unobstructed.
• Attacking the king, where two bishops aiming at the castled king together form a terrible threat.

It’s not new theory: Steinitz, the first world champion, already explained its value, and Capablanca won countless endgames thanks to it.

How to play WITH the bishop pair

If you have both bishops, your plan is clear:

1. Open the position. Trade pawns to clear diagonals and lines. The more open, the better for you (see control of the center).
2. Don’t trade a bishop without reason. The moment you give one up, you lose the pair… and the advantage with it.
3. Aim both at the king. Two bishops on diagonals that converge on the castled king are dynamite.

How to play AGAINST the bishop pair

Does your opponent have it? Don’t panic: there are antidotes.

1. Trade off one of their bishops as soon as possible. Without the pair, there’s no advantage.
2. Close the center with pawn chains. A bishop that runs into walls is a bad bishop.
3. Look for an outpost for your knight. On an advanced, protected square, a knight can be stronger than any bishop.

The underlying idea

The bishop pair is the perfect example of something I repeat often: in chess, piece value isn’t fixed. Two bishops that on paper are worth “6 points” can be worth much more if the position gives them room to breathe. It’s the same logic behind the knight-versus-bishop duel.

Once you learn to count the bishops before every trade, you’ll make better decisions. Sometimes, not trading is the best move.

Useful links

• Knight or bishop? Which is better
• Good bishop and bad bishop
• The outpost square
• Middlegame strategy