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Detail specifications 117K - Level 1

The 2 club opening: strong undetermined hand

2 club openings cover several types of hand:
  • balanced hands with at least 22-23HCP (super NT),
  • third-zone one-suiter hands with a strong suit of at least 6 cards,
  • fourth-zone hands with a very strong 5-card major (minimum ace king queen x x).

Some advice:
Open 2 clubs if you hold the number of tricks for game minus 1
SWNE
2 Trefle
King Spades
3 Spades
3 Hearts
Ace Clubs
Jack Clubs
3 Clubs
Ace Diamonds
King Diamonds
Queen Diamonds
10 Diamonds
5 Diamonds
4 Diamonds
3 Diamonds
Problème E2508
2 clubs With a magnificent third-zone one-suiter (about 18HCP), open 2 clubs strong undetermined hand. If you open 1 diamond then jump to 3 diamonds that would indicate a second-zone one-suiter (15-17HCP)
 
SWNE
2 Trefle
Ace Spades
Jack Spades
9 Spades
2 Spades
King Hearts
4 Hearts
King Clubs
Queen Clubs
4 Clubs
Ace Diamonds
King Diamonds
Queen Diamonds
3 Diamonds
Problème E2506
2 clubsAll very strong balanced hands (22-23HCP) should be opened 2 clubs followed by a NT rebid.
 
 
Careful! The 2 club opening isn't suitable for two-suiter hands in general and for minor-major two-suiters in particular.
SWNE
1 Carreau
King Spades
Queen Spades
10 Spades
4 Spades
Ace Hearts
Jack Hearts
6 Clubs
Ace Diamonds
King Diamonds
Queen Diamonds
10 Diamonds
9 Diamonds
5 Diamonds
Problème E2510
1 diamondThe 2 club opening really isn't suitable for two-suiters and in particular to minor-major two-suiters.
 
 
The 2 club opening is forcing for a round.
In response the partner usually announces 2 diamonds as a relay or else he gives:
  • a very strong major of at least 5 cards headed by two high honors
  • a very strong minor of at least 6 cardsheaded by two high honors

SWNE
2 Trefle Pass
2 Carreau
8 Spades
7 Spades
6 Spades
5 Spades
7 Hearts
5 Hearts
4 Hearts
8 Clubs
6 Clubs
3 Clubs
2 Clubs
9 Diamonds
8 Diamonds
Problème E4523
2 diamondsRelay, even with nothing at all. You will pass with alacrity next time round when the opener has described his 2 club hand.
 
 
The opener's rebid after a 2 diamond response.
  • With a balanced hand, the opener bids 2NT and the auction continues with Stayman and Texas
  • With a one-suiter hand, he bids his suit in general a 6-card suit headed by high honors
Ace Spades
7 Spades
4 Spades
2 Spades
9 Hearts
7 Hearts
6 Hearts
5 Hearts
King Clubs
9 Clubs
4 Clubs
King Diamonds
6 Diamonds
SWNE
2 Trefle Pass 2 Carreau Pass
2 SA Pass 3 Trefle Pass
3 Carreau Pass 4 SA Pass
6 Trefle Pass Pass Pass
King Spades
6 Spades
Ace Hearts
Queen Hearts
Ace Clubs
Queen Clubs
Jack Clubs
10 Clubs
5 Clubs
3 Clubs
Ace Diamonds
9 Diamonds
5 Diamonds
Problem E6148 Example of a 2NT rebid by the opener of 2 clubs
 
King Spades
8 Spades
6 Spades
5 Spades
King Hearts
Queen Hearts
7 Hearts
4 Hearts
Queen Clubs
7 Clubs
4 Clubs
2 Clubs
5 Diamonds
SWNE
2 Trefle Pass 2 Carreau Pass
2 Pique
Ace Spades
Queen Spades
Jack Spades
10 Spades
9 Spades
2 Spades
Ace Hearts
Ace Clubs
King Clubs
Jack Diamonds
10 Diamonds
9 Diamonds
8 Diamonds
Problem E5297 Bid your very nice suit. Your partner will decide the rest : stop, game, slam...