Weak jump shifts are, of course, more preemptive than the traditional strong jump shift that promises 17-19 points. The purported benefits of weak jump shifts are:
An example of a weak jump shift:
Opener | Responder | ||||
92 | AT8765 | ||||
AKJ32 | 6 | ||||
JT42 | 865 | ||||
AT | 532 | ||||
Opener 1 Pass |
Responder 2 (1) |
Opener usually passes unless holding a strong hand and/or good support for partner.
Meaning | |
---|---|
Pass | Could be a strong hand with a misfit. |
Rebidding his own suit | At least a 7-card suit. Non-forcing. |
Raising partner's suit | Any single, double (or even triple) raise is natural and non-forcing. Responder is not expected to bid again. |
Any new suit | Natural, promising extra strength and usually at least a 5+ card suit. Responder is allowed to pass, raise, or correct to opener's original suit. Responder should not make the mistake of rebidding his own suit. |
2NT | A forcing game try, implying at least doubleton support for responder's suit. This is similar to a forcing 2NT response to an opening weak two bid. Responder must rebid his suit with a minimum. Bidding any other suit shows a maximum hand cooperating with opener's game try. |
Opener | Responder | ||||
AKQ42 | 5 | ||||
J92 | 73 | ||||
5 | KQT8642 | ||||
KJ32 | T84 | ||||
Opener 1 Pass |
Responder 3 (1) |
Opener | Responder | ||||
AQ32 | 654 | ||||
A43 | QJT765 | ||||
J | 86 | ||||
A9875 | 63 | ||||
Opener 1 2NT (2) Pass |
Responder 2 (1) 3 (3) |
Opener | Responder | ||||
KQ42 | AT8765 | ||||
AKJ32 | 6 | ||||
K2 | 865 | ||||
A9 | 532 | ||||
Opener 1 4 (2) |
Responder 2 (1) Pass |
West | North | East | South |
Pass | 1 | 2 | 3 |
In this auction, 3 could show a weak hand with 7 spades... or it could be a spade void with heart support. Needless to say, a misunderstanding invites catastrophe.
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