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Suit Jump Shift Responses


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Assume SAYC. I understand that in response to partner's opening bid of one in a suit, a jump of one level more than minimum to a new suit indicates 17+ points and a 5+ card suit. This does not appear on my print of the SAYC card but I believe it is the common SAYC practice. If you do not agree I would appreciate having your comments. Playing in BBO with casual partners I've had misunderstandings, so here are some questions.

 

1. Partner opens 1. You have 17+ points, a 4-card major, and 5+. Do you give priority to one of the major or 3?

 

2. Partner opens 1. You have 17+ points, 5 clubs and a balanced hand with no 4-card major. Do you give priority to 3NT or 3?

 

3. Partner opens 1. You have 17+ points, 4 spades and 5+ . Do you give priority to 2NT Jacoby forcing raise, or 3?

 

4. Partner opens 1, RHO bids 1. You have 17+ points and a 5-card suit. What would be your priorities between a cue bid of 2H, Double, 3NT with balanced hand and stopper in , 2NT Jacoby forcing raise, or jump shift in your 5-card suit?

 

5. Do you agree that "overcall" means a bid by an opponent over an opening bid and that in the sequence 1-P-2 the 2 bid indicates 17+ points and should not be confused with a weak jump overcall as in 1-2?

 

Thanks for your replies and patience.

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Assume SAYC. I understand that in response to partner's opening bid of one in a suit, a jump of one level more than minimum to a new suit indicates 17+ points and a 5+ card suit. This does not appear on my print of the SAYC card but I believe it is the common SAYC practice. If you do not agree I would appreciate having your comments. Playing in BBO with casual partners I've had misunderstandings, so here are some questions.

 

1. Partner opens 1. You have 17+ points, a 4-card major, and 5+. Do you give priority to one of the major or 3?

 

2. Partner opens 1. You have 17+ points, 5 clubs and a balanced hand with no 4-card major. Do you give priority to 3NT or 3?

 

3. Partner opens 1. You have 17+ points, 4 spades and 5+ . Do you give priority to 2NT Jacoby forcing raise, or 3?

 

4. Partner opens 1, RHO bids 1. You have 17+ points and a 5-card suit. What would be your priorities between a cue bid of 2H, Double, 3NT with balanced hand and stopper in , 2NT Jacoby forcing raise, or jump shift in your 5-card suit?

 

5. Do you agree that "overcall" means a bid by an opponent over an opening bid and that in the sequence 1-P-2 the 2 bid indicates 17+ points and should not be confused with a weak jump overcall as in 1-2?

 

Thanks for your replies and patience.

While I agree that a jump shift in SAYC shows a strong hand, it should also show a good suit. It's worth noting that a lot of people do not know that jump shifts are forcing (and weak jumps are a popular although non-standard option), so making one with a pickup partner without discussion is always iffy.

 

In any case, it is not a good idea to make a strong jump shift on balanced hand types, or where you are not sure in which suit you want to play. While jumping shows a good hand, a failure to jump does not deny a good hand. This means that a jump shift is normally either:

 

-- A strong six-card or longer suit, where you want to set trumps and look for slam.

-- A strong five-card suit where you also have good support for the suit partner opened.

 

So on your examples:

 

1. With 5+ and a 4-card major I would bid 2. This is forcing and shows ten or more points. After partner's rebid, I will probably bid my four-card major next. This is forcing (new suit by responder always forcing) and describes my distribution. In general it is a bad idea to jump shift when you have a side four-card major you want to introduce, or to bid a shorter suit before a longer suit when you have game values.

 

2. Again, I would bid 2. I can bid notrump later. We could easily have a club slam if partner has four-card support and a singleton somewhere (even if partner has 11-12 points).

 

3. Over 1, this depends on suit quality. If the clubs are good then bidding 3 is fine. If the clubs are mediocre with a lot of points elsewhere I would bid jacoby.

 

4. Virtually no one plays jump shifts this strong in competition. Most play either weak jump shifts or fitted jumps. Also, virtually no one plays that jacoby 2NT is "on" after an overcall. And in any case, I'm not going to jump shift into a five card suit. Normally I would simply bid my five-card suit at the two-level. This is forcing unless you have agreed negative free bids (which are very non-standard at least in the USA). If I have a fit for opener I will usually cuebid 2 to show a strong raise.

 

5. Overcall means the first bid by the side that did not open the bidding. This can be directly over an opening bid or in fourth position after 1-P-1 (for example). Jump overcalls are normally played as weak. However, jump responses like 1-P-2 can be played as weak as well if that is the partnership agreement. The standard meaning is strong, but weak is quite popular and some people are under a mis-impression that it is standard.

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