Continuations after a jump rebid

by Chris Jagger

1s-2d-3s-4c is a common problem sequence. Every time I sit down to play with a good player in the County and this sequence comes up I know I am in for a murky time. The question is - is 4c a cue or a second suit? I would like to suggest the following as a standard version, based on responder only wanting to show a second suit with at least 5-5. There are three basic sequences:

1. Minor jump rebid: The only way to agree a minor jump rebid is to raise it. For example, 1d-1s-3d-4c is natural. If you wanted to agree diamonds, raise them!

2. Two level response over one of a major:

1s-2d-3s-4c is a cue unless responder's next bid is 5c, 6c or 5NT, all showing big minor two suiters. Opener responds initially as to a cue. Thus 1s-2d-3s-4c-4d-5d: The 4d bid was a cue, as is 5d, since responder did not bid 5c.

1s-2d-3s-4d is natural.

1s-2d-3s-4h is a cue (unlikely to want it as natural since with 5-5 would respond 2h).

1s-2d-3s-5c is a splinter raise.

1s-2d-3s-5NT is 5-6 with the red suits!!

Note that 1h-2c-3h-3s is basically natural, looking for 3NT.

3. 1h-1s-3h: The only sequence left, and a special one. Four of a minor is a cue here. With a big two suiter, rebid 3s, and then if partner raises leap to six of a minor.