Knight vs. Bishop

Knight versus bishop is the question of which minor piece suits the position. Knights want fixed pawns and safe squares; bishops want open diagonals and pawns on both wings.

White's knight on c5 is defended by the pawns on b4 and d4, and Black has no b- or d-pawn to attack it. Black's bishop on g7 runs into the defended pawn on d4.

Both are worth about three pawns, so the structure decides. A knight on a square no pawn can attack is a strong piece. A bishop is stronger in open positions, especially with pawns on both wings.

How to do it

  1. 1Ask whether the pawn structure is fixed or likely to open.
  2. 2Fixed, with safe squares for knights: keep the knight.
  3. 3Open, with pawns on both wings: keep the bishop and open more lines.

For your level

Count the fixed pawns before trading. A knight with a safe square in the centre usually beats a bishop blocked by pawns.

Common mistakes
  • Trading a knight for a bishop automatically, because bishops are said to be worth more.
  • Keeping the bishops in a locked position where the knights have the better squares.
Questions
Is a bishop worth more than a knight?
Both are worth about three pawns. A bishop is usually better in open positions with pawns on both wings; a knight is usually better in closed positions with safe central squares.
When are two bishops strongest?
In open positions with pawns on both wings, where together they cover squares of both colours.

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