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development_after_opening_of_1_plain_suit

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Development after opening 1 Plain Suit

First Response to 1 Plain suit

Responses to 1

ResponseMeaning
1/1/2natural 5 card suit, forcing
1Nnon-descriptive relay
raiseslimit
2/2/3game force; suit of HHxxxx; not solid
2ngame forcing raise (Hxxxx) minimum
3/3/4splinter raise (Almost always shows just 4 card support, use 2N with 5+ card support)
3Nnot defined

Responses to 1

ResponseMeaning
1/2/2 natural 5 card suit, forcing
1Nnon-descriptive relay
raises limit
2/3/3 game force; suit of HHxxxx; not solid
2Ngame forcing raise (Hxxxx minimum)
3/4/4 splinter raise (Almost always shows just 4 card support, use 2N with 5+ card support)
3Nminimum balanced raise (4 cards)
4unbalanced weak raise

Responses to 1

ResponseMeaning
1Nnon-descriptive relay
2/25 card suit, forcing
25 card suit, not forcing (constructive 10-ish “points”)
raiseslimit
2Ngame forcing raise (Hxxxx minimum)
3/3game force; suit of HHxxxx; not solid
3Invitational, good suit (HJTxxx minimum strength)
3Nminimum balanced raise (4 cards)
4/4/4 splinter raise (Almost always shows just 4 card support, use 2N with 5+ card support)
4unbalanced weak raise

Development after forcing 2 over 1

1 - 2 is discussed elsewhere

Opener's first rebid

  • Opener's non-forcing rebids:
    • Rebid of opened suit at the 2 level;
    • Raise of responder's suit to the 3 level (promising 3+ card support)
    • Bid of a Canapé at the 3 level
  • Opener's forcing rebids;
    • A new suit at the 2 level
    • A jump shift to the 3 level or to 4
    • A jump raise of responder's suit (only if responder's suit is a minor) with 5+ card support (this is keycard “Gerber
    • Ä jump rebid of the opened suit showing a very good suit (one loser opposite a singleton)
    • A jump to 3N showing a strong canapé (only if responder's suit is a minor) in responder's suit
    • 2N with stoppers in the unbid suits and one of the below:
      • A canapé
      • A one suited hand

The 2N rebid by opener (at his second bid) shows either a 15-16 HCP one suiter or a canapé with extra values(if the response was 2, then the canapé is not possible – opener has a 15-16 HCP one suiter). Responder's non-forcing bid is a rebid of his suit; all other non-game bids are forcing to game or the four level.

In order to determine which hand type opener has, responder can bid 3 or 3 of opener's major. The 3 bid implies a Club fit, the 3 major bid implies a 3 card major suit fit.

After the 3C bid, opener rebids his major if he has the 15-16 HCP one suiter. Any other rebid by opener shows the canapé.

After the bid of 3 of opener's major by responder, 3N shows the Club Canapé (as would a bid of 4).

Responder's second bid:

  • A preference at the two level back to opener's first bid suit is a non-forcing 3 card preference with a disinclination to bid 2N.
  • A preference at the three level (with or without a jump) is:
    • Invitational if opener did not raise responder's suit and did not bid 2N;
    • Forcing if opener raised responder's suit or bid 2N. Thus the preference at the game level is weaker than the (forcing) 3 level preference. This forcing preference can be made on 3 card support because opener has not denied a 5 card holding in his first bid suit.
  • A single raise of opener's long suit is invitation at the three level, forcing to game at the four level. examples:
12
34game force
—————————————————–
12
23invitational
4forcing

* A simple rebid of respondr's suit is not forcing

  • A rebid of 2N is limit
  • A leap to 4 minor is a slam try (it it is a rebid of responder's suit, it is always used artificially, not to show a good suit - use an immediate jump shift for that purpose). It shows one of the following:
    • Agrees that minor if it is one of opener's suits
    • Otherwise agrees one of opener's majors:
      • If opener has bid and rebid the same major, the leap to 4 and 4 both agree opener's major. 4 shows a control and 4 shows a controls lacking a control (remember that control means A, K, singleton or void).
      • If opener has bid one major and then the other, the leap to 4 agrees s and the leap to 4 agrees s regardless of the order bid by opener.

Examples:

12
24 fit
4 fit

————————————————————-

1\2
24 fit + control
4 fit + control and no control

If opener has bid a major and a minor in either order, a leap to 4 of the minor did not bid agrees opener's major

Example:

12
24 raise
4 raise (forcing)

The principle of double fit applies: that is, the following auction is forcing:

12
33

The bid of the fourth suit (or a third suit) by responder at his second call is always natural and:

  • Non-forcing at the two level
  • Forcing (to game) at the three level

After the jump rebid by opener, responder can:

  • Rebid his suit (non-forcing)
  • Bid a new suit (probably an advanced cue bid)

Example:

12
34non-forcing
4advanced cue bid
4advanced cue bid
3Nnot encouraging
4not encouraging

<html><a name=OneSTwoH></a></html>

1 Spade 2 Hearts

The 2 response to 1 is constructive, but non-forcing.

The auction develops as follows:

2not encouraging
3/3 is natural (in the canapé sense) and forcing
3is encouraging
3is very encouraging, but denies 3s
2Nis a contract correcting call “forcing” a 3 rebid by responder
3Nis a strong hand with a canapé

After 1 - 2 - 2N - 3

3is final
3is a maximum hand with 2s
36 and 3s, maximum hand (forcing)
3NMaximum hand with 3s (not forcing, but seems unlikely that responder will pass)

1 Diamond - 2 Diamonds

After 1 - 2

The raise shows about 8 to 10 supporting points; this call does invite a rebid of a major (which is forcing one round).

After one-over-one response

After 1 - 1 or 1 - 1 or 1 - 1

Responder has shown 8+ HCP with a 5+ card suit. The call is forcing. Responder promises to bid again unless opener makes a simple rebid of his own suit.

Opener's rebids:

  • A raise of responder's long suit to the 2 level shows 3 card support and is forcing to the 3-level in that suit.
  • A jump raise (to the 3-level) shows 5+ card support and is forcing
  • 3N shows 5+ card support with 5-6 losers. This is usually a shapely strong hand.
  • A jump raise (to the 4-level) shows 5 card support and a minimum
  • A new suit is normal canapé and denies 3 card (or more) support
  • 1 - 1/1 - 1N show a secondary suit (i.e. a shorter suit than the s)
  • 1 - 1 - 1N shows a 5332 or 6 bad 322 minimum hand (without 3). New suits by responder at the 2 level are not forcing
  • 2N - shows a one suited hand (semi-balanced) without 3 card support (15 - 16 HCP)

Responder's second bid after receiving a raise to the 2 level

OpenerResponder
11
22Relay
2Nbalanced hand
31-3-5-4 or 1-3-4-5
35+s
35+ (minimum)
35+ (maximum)
———————-
11
22NRelay
33-1-5-4 or 3-1-4-5
35+ s
35+s
———————-
11
22NRelay
33-4-1-5
33-4-5-1
35+s

If opener does not show 3+ card support of responder's suit, then responder's jumps to the 4 level in minors follow the same rules as after forcing 2 over 1.

development_after_opening_of_1_plain_suit.1490054893.txt.gz · Last modified: 2023/07/31 01:16 (external edit)

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