Pieces

There are six pieces in standard chess. They have relative point values, which are useful for determining material advantage:

• Pawn-1
• Knight-3
• Bishop (traditionally valued slightly stronger than knight +/- ¼ points) Bobby Fischer used that system.
• Rook-5
• Queen-9

The King is theoretically worth infinite, although the practical endgame strength is equivalent to an knight or even slightly more.

Bishop pair[]

In open positions, two bishops are considered to have an advantage over two knights or a knight and a bishop. Some evaluation systems count the bishop pair as worth half a pawn more.