How much are doubled pawns really worth?

How much would you say doubled and tripled pawns really "worth"?

For doubled pawns the balance is between:

Advantage: can control valuable squares especially in the center and creates a half-open file for your rooks/Q.

Disadvantage: slow to advance and the lead pawn is an easy target.

Early in the game the doubled pawns on the c-d-e-f files may be worth the traditional 1 point. As the game progresses I would lower that value. If they become isolated, I would lower it even more. Some of this is tied to your choice of openings.

Tripled pawns? I would dread having one of those and I suspect they are rare. They would be almost by definition isolated, yes?

it depends on the position. there is an averaged computational value for such a pawn (0.88), but you can't be in an 'averaged position', so such a theoretical value is completely useless.

A good article on doubled pawns by Larry Kaufman:

http://danheisman.home.comcast.net/~danheisman/Articles/doubled_pawns.htm

Originally posted by MontyMoose
For doubled pawns the balance is between:

Advantage: can control valuable squares especially in the center and creates a half-open file for your rooks/Q.

Disadvantage: slow to advance and the lead pawn is an easy target.

Early in the game the doubled pawns on the c-d-e-f files may be worth the traditional 1 point. As the game progresses I would l ...[text shortened]... ving one of those and I suspect they are rare. They would be almost by definition isolated, yes?