NMF

[cooee]

Hello bridge players

Could someone plese explain what " NMF " means on a convention card.

Thanks in anticipation

Patricia ( cooee )

[inquiry]

NMF stands for "new minor forcing". It is sort of like fourth suit forcing, but when it is not the forth suit.

 

For example,

 

1♣ - 1♠

1NT - 2♦

 

Here, 2♦ could be conventional artificial force and not describe holding ♦'s or could be to play 2♦... it depends upon your agreement.

 

For more on new minor forcing, see

 

http://www.bridgeguys.com/Conventions/NewMinorForcing.html

 

Ben

[luke warm]

something came up the other day, and for some reason i wasn't quite sure of the correct continuation.. i looked online and could find no reference to nmf when pard used it as a passed hand.. the bidding went:

 

p (p) 1c (p) 1h (p) 1nt (p) 2d

 

now then, is 2d nmf? remember, opener is 3rd hand (of course the 1c bid makes it likely it's a full opening bid).. what does opener do with 2245 (i know, he should have opened 1d to begin with)? does 2h by opener promise 3? can he afford to pass a forcing(?) bid OR bid 2nt with, say, a 12 count? thanks

[EricK]

something came up the other day, and for some reason i wasn't quite sure of the correct continuation.. i looked online and could find no reference to nmf when pard used it as a passed hand.. the bidding went:

 

p (p) 1c (p) 1h (p) 1nt (p) 2d

 

now then, is 2d nmf? remember, opener is 3rd hand (of course the 1c bid makes it likely it's a full opening bid).. what does opener do with 2245 (i know, he should have opened 1d to begin with)? does 2h by opener promise 3? can he afford to pass a forcing(?) bid OR bid 2nt with, say, a 12 count? thanks

 

Firstly, when 3rd hand opener rebids, he promises a full opener (at least the way most people play). So here, opener has a weak NT type hand, and he is unlikely to have a 3 hearts in a minimum opening hand else he might well have passed 1H.

 

Secondly, if your requirements for opening are standard, then you are very unlikley to have a game here unless responder is distributional.

 

Thirdly, since opener may be planning to pass your response, I don't think responder should bypass a 5 card diamond suit to bid a 4 card major suit.

 

IMO therefore, 2D is non-forcing showing 5H and 4/5D.

 

2H now by opener is likely to be a doubleton or 3 in a very flat but non-minimum hand (otherwise he would raise to 2H on first round, or pass 1H). With a 2245 hand, opener should pass.

 

The only "strong" bids by responder on the second round are 2S and above (2S would be a rare bid showing a strongish 4-6 hand, unsuitable for a weak 2).

 

No doubt other people have other ideas about this sequence.

 

Eric

[Free]

NMF (New Minor Forcing) is a convention to find a forcing bid after a 1NT rebid of a 1m-opener. It asks for more information about the hand.

 

Anyway, I like checkback more, because it leaves more room after a 1♣ opening. Checkback is after 1x-1y-1NT-2♣ relay, and opener has more space to show minimum, maximum, 3 card support in y, 4 card other major,...

[Gerardo]

You can do that with NMF too!

 

1m : 1M

1NT: 2om

1. 2oM = 4 card
   
2. 2M = 3 card support
   
3. 2NT = neither
   

If you have both 4oM and 3M, start with 2oM, then rebid M to show support

[the hog]

Free, beter still is transfer checkback, but that is a topic for the Advanced board.

[luis]

For beginners I recommend a convention called "Roudi"

 

1m - 1M

1N - 2c

 

2d = Min 2 cards

2h = Min 3 cards

2s = Max 2 cards

2n = Max 3 cards

[Trpltrbl]

NMF means New Minor Forcing as most already told you before me. What it means, is that responder is asking opener if he has

1) 3 card support in responders major

2) other 4 card major

3) minimum or maximum hand

 

and it shows an invitational hand or better.

1http://mnet.bg/~mfn/c.gif - 1http://mnet.bg/~mfn/s.gif

1NT - 2http://mnet.bg/~mfn/d.gif*( alertable as NMF )

2http://mnet.bg/~mfn/h.gif = 4 Card suit and minimum

2http://mnet.bg/~mfn/s.gif = 3 Card support and minimum

2NT = balanced minimum with no 3 card support and no 4 card other major

3http://mnet.bg/~mfn/c.gif = no 3 card support, no 4 card other major and 6 card http://mnet.bg/~mfn/c.gif suit

3http://mnet.bg/~mfn/d.gif = Balanced maximum, and no 4 card other major and 3 card support

3http://mnet.bg/~mfn/h.gif = 4 Card suit and maximum

3http://mnet.bg/~mfn/s.gif = 3 Card support and maximum

 

Mike :ph34r:

 

P.S. If you have any questions feel free to ask me :D

[bglover]

Like any convention, NMF has a variety of options and ways to be played. So, it is best to have a clear understanding in ADVANCE how your partner plays it.

 

Just the other day, I was playing with a very good player. We had what I thought was a "normal" NMF sequence and we got too high.

 

After the hand was over he asked me if I was playing "something funny." Nope, but he wasn't playing the same thing I was. (Frankly with a "new partner" I just assume we play "normal" NMF unless there has been a previous discussion.)

 

The bids I made had a totally different meaning to this player because he probably plays a different variant of NMF than I do (I play the most common one laid out above).

 

The point is, of course, that if you choose to use this "convention" and i strongly suggest you do, then be sure your partner knows it AND uses the same variant you do.

[AceOfHeart]

Question do you play NMF in this seq?

 

1C P 1S P

2C P

 

Is 2D here nmf?

[twcho]

It is not nmf. It is just natural and forcing.

[EricK]

It is not nmf. It is just natural and forcing.

Do you have a bid in this sequence (1♣ 1♠ 2♣) which is simply forcing? Suppose you have a strong (i.e. at least enough for game) 5-3-3-2 or 5-3-2-3 hand. Possible contracts are in ♠, ♣, or NT. How will you explore which is best? It makes sense to play that 2♦ is an artificial GF. I believe this is known as a Bourke Relay.

 

Apologies if this isn't suitable for the Beginner/Intermediate forum.

 

Eric

[plum_tree]

For beginners I recommend a convention called "Roudi"

 

1m - 1M

1N - 2c

 

2d = Min 2 cards

2h = Min 3 cards

2s = Max 2 cards

2n = Max 3 cards

Who else would recommend Roudi (Rowdy) for novices/beginners? What makes it better? What is the minimum expected hand strength for a NMF sequence?

[ArtK78]

Question do you play NMF in this seq?

 

1C P 1S P

2C P

 

Is 2D here nmf?

If you play Extended New Minor Forcing, it is.

 

Same with 1♦ - (P) - 1M - (P)

2♦ - (P) - 3♣.

 

Al Moyse used to refer to NMF as "that petty little odious bid." This has been abbreviated as PLOB. Some years back, there was an article on Extended New Minor Forcing in The Bridge World. The title of the article was "Extended PLOB."

[Vampyr]

Who else would recommend Roudi (Rowdy) for novices/beginners? What makes it better?

 

No one.

 

Who else would recommend Roudi (Rowdy) for novices/beginners? What makes it better? What is the minimum expected hand strength for a NMF sequence?

 

This depends on your opening NT. If you play a weak NT so that the 1NT rebid is eg 15-17. use some form of NMF/checkback with at least a good 8-count or better. If you play a strong NT so that the 1NT rebid is eg 12-14, you want at least 10 to check back.