Response bids to a 1♥ or 1♠ overcall : with a 4 card fit
Your P has just overcalled and can have from 8-17HCP. (X as of 18HCP). He has a minimum of 5 cards in the bid suit. You can support his bid in different ways depending on your point count :
- the weakest support bid is a jump fit to 3♥ or 3♠ : You need 4-7HCP and an irregular distribution : this is a pre-empt
- intermediary support bid is : a jump cue-bid of Opener's bid with 8-9HCP
- Positive support bid is 2NT for which you need at least 10HCP
- jump shift bid : a 4 card fit and a strong 5-carder
- double jump shift bid : a 4 card fit and a void/singleton in Opener's suit (Splinter Family)
- Much less frequent : with 4 trumps, a non jump cue-bid : looking for a possible Slam