Handling the Big Hands by Jon Gustafson

What defines a Strong 2 Club Opening bid?1

In Goren's Bridge Complete (© 1963)  we learned that a strong two was defined by the following formula. Of course all 2-level suit bids were used as strong twos.

good five-card suit 25 points
good six-card suit 23 points
good seven-card suit 21 points
with a second good five-card suit, 1 point less is needed
if the game is to be in a minor suit, 2 points more will be needed
  1. SAKQJxxx HAxx DAx Cx
2 Spade. Nine certain winners, you are within a trick of game, and it is worth 21 points (18 HCP plus 1 for the doubleton and 2 for the singleton). An odd king or queen might produce your tenth trick.
  1. SAKJ HAKJxx DA CKQ10x
2 Hearts. It would be really unlucky to not make 10 tricks with this hand. A total of 27 points, 25 in high cards and 2 in distribution.
  1. SAKxx HAKxx Dx CAKxx
1 Club. This is no where near an opening demand bid. 23 points but the longest suit is only 4 cards long. There are too many losing tricks. If partner can't respond to 1C it is unlikely that a game will be missed.

Hy Lavinthal (a contemporary of Culbertson) devised the following rules for opening a strong demand bid:

2 HT
AK
1½ HT
AQ
1 HT
A, KQ, KJ10
½ HT Kx, QJx
+ values
any queen, but not a singleton
~ ¼ HT
any jack combined with another honor (but no singleton or doubleton, and not AKQJ
any singleton or void (but not more than one)

Today, the standards for opening a strong two have not changed significantly. Generally any hand with 22-23 or more points is a candidate to be opened a strong two clubs. And here's the big change: all strong game going hands are opened two clubs since 2 diamonds through 2 spades are used for weak twos or other conventions such as Flannery. This puts much more strain on the responses and rebids but frees up the other two-level opening bids for other more frequently occurring uses.

When NOT to open Two Clubs

The Balanced Hands

Assume that partner's response to 2C is either negative or is "waiting."

1NT
15-17 HCP
open minor, rebid 2NT
18-19 HCP
2NT
20-21 HCP
open 2C, rebid 2NT
22-23 HCP
open 2C, rebid 3NT 24-28 HCP
open 2C, rebid 4NT 29-30 HCP

How do you respond to a 2 Club Opening bid?2

A number of approaches have been developed for responding to the strong, forcing artificial 2C bid:

2D 0-3 HCP
2H 4-6 HCP
2S 7-9 HCP
3C 10-12 HCP
3D 13-15 HCP
Traditional Responses (from big club systems)
2D   0-1 controls
2H   2 controls
2S   an ace and a king (3 controls)
2NT   3 kings (3 controls)
3C   4 controls
higher steps
  5+ controls
Variation (Edgar Kaplan)
2D   0-1 controls, less than 6 HCP
2H   0-1 controls, at least 6 HCP
2S   an ace or 2 kings (2 controls)
2NT   3 kings (3 controls)
3C   1 ace and 1 king (3 controls)
higher steps
  4+ controls
2NT negative
any simple suit response (headed by at least the QJ)
7 points and ½ QT or 8 points and 1 QT or more
2D waiting or negative
2H or 2S 2 of the top 3 honors fifth (optionally AJTxxx or KJTxxx) or better
2NT (rare)
11+ HCP, tenaces in all suits
3C or 3D AJTxxx or KJTxxx or better
2C - 2D; 2M - 3C or next step if past 3C second negative, less than the agreed minimum strength for a positive (e.g. no A, no K, no 2 Q's)
2D positive (an A, a K, or 2 Q's); forcing to game
2H negative (no A, no K, no 2Q's)
2S 2 of the top 3 honors fifth
2NT 2 of the top 3 honors fifth in hearts
3C or 3D AJTxxx or KJTxxx or better
2D 0-4 HCP but not an A (negative), or an A+K or 8+ (slam positive)
2H an A or 5-7 or bad 8 (game positive)
2S any five card suit with 2 of the top 3 honors
2NT any five card suit with the AKQ
3 of suit
six card suit with 2 of the top 3 honors
3NT
any six card suit with the AKQ
4 of suit
seven card suit with 2 of the top 3 honors
4NT
any seven card suit with the AKQ

The rest of the auction

Responder can pass only if opener bids and rebids a major suit at the 3-level and responder has shown a negative hand.
After opener's jump rebid (2C-2D; 3H-?), a new suit by responder shows an ace and bids 3NT holding a side suit king. Opener bids the next step to let responder show the location of the king.
2NT 3C = Puppet Stayman asking for a 4- or 5-card major; it promises only a 3-card major.
3D at least one four card major

3M shows 4+cards in the OTHER major

4D shows 4-4 in BOTH majors
3H a five card heart suit
3S a five card spade suit
3NT no 4- or 5-card major
2C - 2H; 2S - ? 3S is encouraging showing 3 card support and good prospects of an outside trick or ruffing value.
4S is discouraging probably only 2 card spade support and very little prospect of a trick outside.

The example hands and discussion for each of the above sections was extracted from the following articles. See the originals for a more thorough discussion.

1 Charles Goren, Goren's Bridge Complete, Chancellor Hall Ltd., 1963, 1971, pp 18-22.
Richard L. Frey, The Official Encyclopedia of Bridge, Crown Publishers, 1971, p 155,184.
2 Max Hardy, Two Over One Game Force, Max Hardy, Publisher, 1989, pp 193-197.
Richard Pavlicek, Pavlicek System, February 5, 2004, pp 43-44.