Why is a rook better than a bishop?

Why is a rook better than a bishop? Rooks are more valuable than bishops because they can reach every square of the chess board rather than half of them. Checkmate can be achieved with just a rook and a king, but not with just a king and a bishop. Overall, the rook is worth more because it can cover more squares than a bishop can.

Rooks are more valuable than bishops because they can reach every square of the chess board rather than half of them. Checkmate can be achieved with just a rook and a king, but not with just a king and a bishop. Overall, the rook is worth more because it can cover more squares than a bishop can.