What eaxactly means F1, as used in system notes

[petsei]

Hi all,

According to the experienced players of my local club F1 means forcing for one round.

This sounds good and logical. But what means forcing for one round? Does this mean that

it promises a rebid such as in the sequence 1S - (p) - 2C which often is forcing to

3C from responder?

When this is the conventional meaning of F1 (forcing for one round)what is the correct

terminus, when a bid only forces a response? A lot of players I know are using the 2C bid

in:1S - (X) - 2C as only forcing to 2 of openers suit.

Is there a expression for this kind of force?

Thanks in advance.

Peter

[gordontd]

F1 does stand for forcing for one round, and that's exactly what it means. It's often used in describing a forcing NT, when opener's non-jump rebid is non forcing.

 

SAYC describes a 2/1 response (1S-2C) as promising a rebid, which is not the same thing as forcing for one round, since it follows that opener's rebid may not be passed. Other ways of playing 1S-2C include forcing to 2NT. Each is different from the other, and means exactly what it says.

[Finch]

It's probably easier to think of F1 as meaning "forcing for one bid". All it means is that partner is forced to bid again, the hand that made the forcing bid is not.

"Promising a rebid" is something different.

 

p.s. this is exactly what Gordon just said

[Free]

F1 = forcing for 1 round = exactly that. It just tells partner to bid if his RHO passes, and that you may pass his bid.

[mhe]

IMO, F1 is general while F1pr(promising rebid) is simply one SUB-type of F1. There are different degrees of forceness in F1.