15+ 1C opening

[Adebisi]

Hi, im looking for good follow-up after 15+ 1C opening and 1D 0-8 neg response.

1NT is 12-14 so 1C-1D-1NT=should be 15-17, but rest?Especially how to deal with 4441 hands?Any good ideas?

[Free]

Here's what I play:

 

1♥ = extra's, relay (1♠ double negative)

1♠ = 5+♠

1NT = minimum, can be semibalanced (5422, 5431, 4441)

2m = (5)6+m

2♥ = (5)6+♥

 

It usually works out ok when bidding 1NT on semi balanced hands, but it can be hard when you have 5♥ and some side 4 card suit.

 

After double negative:

1NT = natural, can be semibalanced (4441, 5422, usually no 5431 -> canapé transfer)

2♣ = any GF (2♦ is waiting bid, other are extremely weak and natural)

2♦/M = canapé transfer

2NT = a non-minimum NT hand

3♣ = canapé transfer

[Robert]

Hi everyone

 

I use a 16+ 1C, however, your 15+ might be able to use the method.

 

1C-1D-1H*=either natural with hearts(Kokish two way type style) or shows a club suit.

 

Responder bids a semi auto 1S and opener bids 1NT* with a club hand and any other bid shows hearts and the suit bid.

 

1C-1D-1S* 1 round force showing 4+ spades. Responder bids 1NT with 0-5HCP,

2C* with 6-7HCP, 2D*=3 card raise, 2H=natural or bids 2S with 4 card support.

 

1C-1D-1NT* shows 18-20HCP balanced. You might want to 'switch' your NT opening range to a medium 14-16 or 15-17 or you will be 'jumping' to 2NT with 18HCP opposite a known 0-7(8?)HCP. You could also use the 1C-1D-1H as a 18+ relay, however, that causes other problems with the higher rebids.

 

1C-1D-2C* shows diamonds.

 

1C-1D-2D* shows 4441 types with 19+ HCP. My testing suggested that the minimum 4441 types should try to stay low opposite a 1D reply.

 

Changing the range to 19+ also allows very accurate bidding opposite weak hand types.

 

1C-1D-2H*(Kokish style) strong two hearts or 25+HCP(if 2NT rebid)

 

I also use a multi 2D opening to show either 6M or 27-28HCP.

 

1C-1D-2S* minors at least 5-5

 

1C-1D-2NT=23-24

 

1C-1D-3C natural force with 5+ clubs

 

1C-1D-3D natural force with 5+ diamonds

 

1C-1D-3M= 1 round force with 4(+)M and 6(+) diamonds with a very strong hand.

 

1C-1D-3NT=to play with long minor and hope for nine tricks.

 

1C-1D-4C(5503) and 1C-1D-4D(5530)

 

Regards,

Robert

[NickToll]

I like the following development, derived by Tony Forrester (TRS System, 80s). I admit it doesn't fit with everyone's taste, but maybe you can find it interesting. This version is partially modified, in order to include 15+ balanced hands (Forrester starts from 17, playing 14-16 1NT): you be the judge (uhm... where did I hear this one?...)

 

1♣ - 1♦ - ?

 

1♥: minimum 2suiter, higher suit is longer, or 15-17 balanced or GF balanced; 1♠ is semiautomatic, then:

1NT 15-17

2♣ clubs + a major (2♦ relay for the major)

2♦ diamonds + a major (2♥/♠ pass/correct)

2♥ majors

2♠ minors

2NT GF balanced

 

1♠: minimum 2suiter, lower suit is longer; 1NT is relay (not mandatory), then:

2♣ clubs + a major (2♦ relay for the major)

2♦ diamonds + a major (2♥♠ pass/correct)

2♥ majors

2♠ minors

 

1NT: transfer to clubs, or 18-20 balanced; here 2♣ is double negative, and opener:

pass minimum 1suiter

2♦ 18-20 balanced

2♥♠ clubs and this suit, non-minimum (otherwise 1♠), one-round force

2NT clubs and diamonds, non-minimum, one-round force

3♣ 18-20 1suiter

positive bids by responder: 2♦ general positive, 2♥♠ 5card suit, 2NT long diamonds, 3♣ INV raise, 3♦+ Splinter: now opener's 3♣ is limit, others are game-forcing;

 

2♣: transfer to diamonds; here 2♦ double negative, 2♥ general positive, 2♠/3♣ natural, 2NT hearts, 3♦ INV raise, 3♥+ Splinter; further development is as after 1NT, not considering balanced 18-20; after a general positive, 2NT by opener shows a 2suiter: the second suit is the one artificially bid by partner.

 

2♦: transfer to hearts; here 2♥ double negative, 2♠ general positive, 2NT spades, 3♣♦ natural, 3♥ INV raise, 3♠+ Splinter;

 

2♥: transfer to spades; here 2♠ double negative, 2NT general positive, 3♣♦♥ natural, 3♠ INV raise, 4♣+ Splinter;

 

2♠: 3suiter, 18+; 2NT positive relay for the suit under the singleton, 3♣ and more to play (with 15-17, treat as 2suiter)

 

2NT: 21-23 balanced

 

3♣♦♥♠: game-forcing 1suiter

[hrothgar]

I don't like response strucutres based on 1♦ negative to a storng that could be made on a 15 count. Your 1♦ response ends up badly overloaded.

 

Here's the structure that I'm current using

 

3N game forcing values, 5=4=4=0 shape

3♠ game forcing values, 4=5=4=0 shape

3♥ game forcing values, 5=4=4=0 shape

3♦ game forcing values, any 5440 with a ♦ void

3♣ any solid suit (AKQxxxx or better)

2N game forcing values, any 5440 with a major suit void

2♠ semi-positive, single suited with Spades

2♥ semi-positive, single suited with Hearts

2♦ semi-positive, 5+ Hearts and 4+ Diamonds

2♣ semi-positive, 5+ Hearts and (4+ Clubs or 4 Spades)

1N semi-positive, unbalanced with 5+ Spades

1♠ artificial double negative

1♥ artificial semi-positive (balanced or unbalanced with 4 card major)

1♦ artifical game force

[luke warm]

i like free's (sort of), except keeping the relay structure, just 2 steps up

 

1c : 1d

1h (relay, extras) :

• 1s=double neg
  
• 1nt=4+ hearts
  
• 2c=4+ spades
  
• etc
  

for the 1nt and higher, responder needs to be 5-8 or so with at least 1 control.. i don't like systems that have opener's hand (the strong one) describing, unless it shows a limit hand or a gf hand (1 or 2 nt, for example)

[Free]

Well, usually the relaystructure will get us too high, but not always. We can still relay, but we can also break relays and go to a natural bidding when we don't see any slam... I think it combines both methods very well. Initial responses over the relays are indeed the same like our usual relayscheme. :(

[ulven]

I play the following over a 15+ 1C and 0-9 1D reply:

 

1H 17+ w/BAL / (18+) 20+ w/unBAL

1S 15-20 w/5+M (2-suited)

1N 15-16 w/BAL

2C 15-20 w/4*M & 5+m

2D 15-20 w/6+M

2H 15-17 w/4H441

2S 15-17 w/54+ m’s

2N 15-17 w/6+D

3C 15-17 w/6+C

3D 15-17 w/55+ in M’s

3M 15-17 w/7*M

 

Relays over 1H with 8-9. All NT-intervals are broken into 2-p ranges.

[vang]

I don't like response strucutres based on 1♦ negative to a storng that could be made on a 15 count.  Your 1♦ response ends up badly overloaded.

 

Here's the structure that I'm current using

 

3N game forcing values, 5=4=4=0 shape

3♠ game forcing values, 4=5=4=0 shape

3♥ game forcing values, 5=4=4=0 shape

3♦ game forcing values, any 5440 with a ♦ void

3♣ any solid suit (AKQxxxx or better)

2N game forcing values, any 5440 with a major suit void

2♠ semi-positive, single suited with Spades

2♥ semi-positive, single suited with Hearts

2♦ semi-positive, 5+ Hearts and 4+ Diamonds

2♣ semi-positive, 5+ Hearts and (4+ Clubs or 4 Spades)

1N semi-positive, unbalanced with 5+ Spades

1♠ artificial double negative

1♥ artificial semi-positive (balanced or unbalanced with 4 card major)

1♦ artifical game force

can you detail a little bit what happens after 1♣ - 1♠ ? tya

[Sigi_BC84]

can you detail a little bit what happens after 1♣ - 1♠ ? tya

Here's a document describing it in some detail (and the rest of the entire system in quite some detail :-):

 

Marston/Thompson Moscito 2005 (your question is answered on page 11).

 

Maybe Richard plays it differently...

 

--Sigi

[rbforster]

I play a strong club (16+) similar to Free with 1♣-1♦-1♥ artificial and extras (20+). Other rebids by opener besides 1♥ are natural and limited (~16-19), in particular NF. After the 1♥ (extras) - 1♠ (double negative), I just play 2♣ as an artificial GF and everything else natural. Not quite so fancy as Free's methods, but simple.

[awm]

I've found the following structure to work a bit better than natural bids on minimums, because the sequence 1♣-1♦-2♥ showing 5+♥ is very awkward:

 

1♣-1♦...

 

1♥ = extras, try to relay (all others are 15-18)

1♠ = major+minor two suiter, can be (41)44 or 4-5/5-4 either way

1NT = minimum-range balanced

2♣ = both majors, at least 4-4

2♦-2♠ = natural 6+ card suit deny a side 4+ card major

2N = both minors

3♣ = 6+♣ no 4cM

 

After 1♣-1♦-1♠:

 

1N = 6+ points, ask for five-card suit

2♣ = 0-5 points, pass/correct for five-card suit

2♦ = ask for major, potentially any strength

2♥/2♠ = 0-5 points and 6-card suit

2N = 0-5 points and 4+/4+ minors

3♣/♦ = 0-5 points and 6-card suit

[rbforster]

I've found the following structure to work a bit better than natural bids on minimums, because the sequence 1♣-1♦-2♥ showing 5+♥ is very awkward

Thanks for the suggestions, Adam. You're right that bidding 2♥ with 5+ and a minimum was definitely an unpleasant choice in my system.