1D Response to a 1C Opening
The 1D response to a 1C opening bid describes one of the following types of hands:
1) A flat 6 or 7 HCP hand with no 4 card major and fewer than 5 clubs (with 5 clubs, bid 3C). This is necessary because a 1NT response to 1C shows 8 to 10 HCP. Responder's rebid will be either 1 NT or some other minimum rebid. Note that if Opener rebids 1H or IS Responder must not pass, since Opener may be strong enough that game is possible.
2) A hand with less than opening strength with a 4+ card diamond suit and no 4 card major. If Responder has a 4 card major he bids it, bypassing a diamond suit of any length. Responder may choose to bid his diamond suit later, showing invitational strength (10 to 12 HCP) or less, if in a forcing auction. The auction then proceeds normally.
If Opener's rebid is in a major suit:
a) Responder will raise to the 2 level with 3-card support and invitational strength (10 to 12 HCP).
b) With 3-card support and less than 10 HCP, Responder will rebid 1 NT or 2D.
c) With less than 3 card support for Opener's major, Responder will bid 2NT with 10 to 12 HCP. This bid implies a long diamond suit, since with a balanced hand he would have bid an immediate 2NT.
If Opener's rebid is 1 NT:
a) Responder will pass with 6 to 9 HCP.
b) Responder will rebid 3D with a 6+ card diamond suit. Opener must pass this bid.
c) Holding 10 to 12 HCP and 5+ diamonds, Responder raises to 2NT - suppressing his long diamond suit.
3) A hand with opening strength or better and a 5+ card diamond suit - it may contain one or even two 4 card majors. Responder will bid his lower ranking major suit at his first rebid. If Opener's rebid is a major suit (confirming an unbalanced hand unsuitable for a 1NT rebid), Responder will jump raise with 4 card support (confirming 5+ diamonds and an opening hand or better).
Openers rebids to the ID response
1) Opener, with a balanced minimum hand, assumes Responder has no 4 card major. He will rebid 1NT, suppressing any 4-card major(s) he may possess. If the final contract is in NT, the defense will have less information to guide them than if the 4 card majors were shown.
If Responder has a major suit not yet shown, he must show it at his next turn. This bid confirms an opening hand, a 5+ card diamond suit, a 4 card major and is game forcing.
If Responder has a weak hand (6 to 9 HCP) with 6 diamonds and a 4 card major, he will bid 3D, which Opener will pass.
If Responder has invitational strength (11 or 12 HCP) with 6 diamonds and a 4 card major, he will raise to 2NT, suppressing his 6-card diamond suit.
2) Opener, with a balanced strong hand (18 or 19 HCP), assumes Responder has no 4 card major. He will rebid 2NT, suppressing any 4-card majors he may possess. If the final contract is in NT, the defense will have less information to guide them than if the 4-card major(s) were shown.
If Responder has a major suit not yet shown, he must show it at his next turn. This bid confirms an opening hand, a 5+ card diamond suit, a 4 card major and is game forcing.
If Responder has a weak hand (less than 7 HCP) with 6 diamonds and a 4 card major, he will bid an artificial 3C (the Wolff signoff). Opener must bid 3D, which Responder will pass. Note that 3C is not an offer to play in Opener's club suit.
If Responder has invitational strength (7 or 8 HCP) with 6 diamonds and a 4 card major, he will raise to 2NT, suppressing his 6-card diamond suit.
If Responder has a game strength hand (9 to 13 HCP) with 6 diamonds and a 4 card major, he will bid 3NT, suppressing his 6-card diamond suit.
If Responder has a slam strength hand (14 HCP or more) with 6 diamonds and a 4 card major, he will make a slam try by bidding 4NT (small slam invitation), 5NT (grand slam invitation), or 4C (Gerber).
3) With an unbalanced hand containing a 4 card major, Opener bids the major suit. This confirms an unbalanced hand - otherwise, his rebid would be 1NT (or 2NT). With less than 10 HCP, Responder rebids 1NT. With 10 to 12 HCP and 3 card support for the major, Responder raises the major (Note that he may not raise with less than 10 HCP).
With 4-card support for Opener's major, Responder will jump raise in the major. This confirms 5+ diamonds and an opening hand or better.
The Special Auction 1C-1D-1H-1S
This auction is Fourth Suit Forcing. Responder denies holding 4 spades. He is just creating a game-forcing auction to explore for the right game. He probably does not have a spade stopper, and he may have 3-card support for hearts. Partner should bid NT with a good spade stopper; otherwise he makes his most natural rebid. The rest of the bidding proceeds normally.
If Responder holds 4 spades, he has opening hand strength and must make a jump shift to 2S rather than rebid 1S. This is game forcing. The rest of the bidding proceeds normally.
| Next | Previous | Return to Home Page |
