Canary Club

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====Development after opening 1 Plain Suit====

====First Response to 1 Plain suit====

**Responses to 1\d**

**Responses to 1\h**
^Response^Meaning^
|1\s/2\c/2\d| natural 5 card suit, forcing|
|1N|non-descriptive relay|
|\H raises| limit|
|2\s/3\c/3\d| game force; suit of HHxxxx; not solid|
|2N|game forcing \H raise (\hHxxxx minimum)|
|3\s/4\c/4\d| splinter raise (Almost always shows just 4 card support, use 2N with 5+ card support)|
|3N|minimum balanced \h raise (4 cards)|
|4\h|unbalanced weak raise|

**Responses to 1\S**
^Response^Meaning^
|1N|non-descriptive relay|
|2\c/2\d|5 card suit, forcing|
|2\h|5 card suit, not forcing (constructive 10-ish "points")|
|\s raises|limit|
|2N|game forcing \s raise (\sHxxxx minimum)|
|3\c/3\d|game force; suit of HHxxxx; not solid|
|3\h|Invitational, good \h suit (HJTxxx minimum strength) |
|3N|minimum balanced \s raise (4 cards) |
|4\c/4\d/4\h| splinter raise (Almost always shows just 4 card support, use 2N with 5+ card support)|
|4\s|unbalanced weak raise|

<html><a name=force2over1><strong>Forcing 2 over 1</strong></a></html>
====Development after forcing 2 over 1====

1\s - 2\h is discussed [[1 plain suit#S2H|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 \c 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\c
    * 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 \c canapé
      * A one suited hand

The 2N rebid by opener (at his second bid) shows either a 15-16 HCP one suiter or a \c canapé with extra values(if the response was 2\c, then the \c 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\c or 3 of opener's major. The 3\c bid implies a Club fit, the 3 major bid implies a 3 card major suit fit.

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

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

===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:

|1\h|2\d||
|3\c|4\c|game force|
|-----------------------------------------------------|||
|1\H|2\c||
|2\d|3\d|invitational|
| |4\d|forcing|

* A simple rebid of responder'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\c and 4\d both agree opener's major.  4\c shows a \c control and 4\d shows a \d controls lacking a \c control (remember that control means A, K, singleton or void).
      * If opener has bid one major and then the other, the leap to 4\c agrees \hs and the leap to 4\d agrees \ss regardless of the order bid by opener.

Examples:

|1\s|2\c||
|2\h|4\c|\h fit|
| |4\d|\s fit|
-------------------------------------------------------------
|1\h|2\d||
|2\h|4\c|\h fit + \c control|
| |4\d|\h fit + \d control and no \c control|

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

Example:
|1\h|2\c||
|2\d|4\c|\h raise|
| |4\d|\d raise (forcing)|

The principle of double fit applies: that is, the following auction is forcing:
|1\h|2\c|
|3\c|3\h|

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:

|1\s|2\d||
|3\s|4\d|non-forcing|
||4\c|advanced cue bid|
||4\h|advanced cue bid|
||3N|not encouraging|
||4\s|not encouraging|
<html><a name=S2H></a></html>

====1 Spade 2 Hearts====

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

The auction develops as follows:
^^^
|2\s|not encouraging|
|3\c/3\d| is natural (in the canapé sense) and forcing|
|3\h|is encouraging|
|3\s|is very encouraging, but denies 3\hs|
|2N|is a contract correcting call "forcing" a 3\c rebid by responder|
|3N|is a strong hand with a \H canapé|

**After 1\s - 2\h - 2N - 3\c**
^^^
|3\d|is final |
|3\h|is a maximum hand with 2\hs|
|3\s|6\s and 3\hs, maximum hand (forcing) |
|3N|Maximum hand with 3\hs (not forcing, but seems unlikely that responder will pass)|

<html><a name=d2d></a></html>
====1 Diamond - 2 Diamonds====

**After 1\d - 2\d**

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

<html><a name=over1></a></html>
====After one-over-one response====

**After 1\d - 1\s or 1\d - 1\h or 1\h - 1\s**

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\d - 1\s/1\h - 1N show a secondary \c suit (i.e. a shorter \c suit than the \ds)
  * 1\h - 1\s - 1N shows a 5\h332 or 6 bad \h322 minimum hand (without 3\s).  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===

^Opener^Responder^^
|1\d|1\h||
|2\h|2\s|Relay|
|2N||balanced hand|
|3\c||1-3-5-4 or 1-3-4-5|
|3\d||5+\ds|
|3\h||5+ \s (minimum)|
|3\s||5+ \s (maximum)|
|**----------------------**|||
|1\d|1\s||
|2\s|2N|Relay|
|3\c||3-1-5-4 or 3-1-4-5|
|3\d||5+ \ds|
|3\h||5+\hs|
|**----------------------**|||
|1\h|1\s||
|2\s|2N|Relay|
|3\c||3-4-1-5|
|3\d||3-4-5-1|
|3\h||5+\hs|

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.

New suits at the 2-level and 3-level follow the rules of forcing 2 over 1 (that is a new suit at the two level is natural and not forcing; at the three level natural and forcing).

A jump rebid is invitational

After opener bids 2N (e.g. 1\H - 1\S - 2N) a preference is nonforcing

^  Opener ^ Responder  ^^
|1\H | 1\s  ||
|2\D |? ||
| | 2\H |simple preference (3 card support)|  
| | 2\s |sign off| 
| | 2N |natural non-forcing|  
| | 3\C|natural forcing (new suit 3 level) |  
| | 3\D |invitational |  
| | 3\H|invitational (4+ card support)  |
| | 3\s|natural invitation  |
| | 3N |sign off |  
| | 4\C |artificial slam try with 4+ card Heart fit  |
| | 4\D |natural slam try  |
| | 4\H |sign off  |
| | 4\S |sign off (hand can't be too good since suit was strong enough, but no jump shift)  |

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