1H/S OPENER'S REBID AFTER AN INTERMEDIATE JUMP RAISE FROM RESPONDER

pass after doubleDoesn't show anything in particular. Depending on vulnerability and circumstances, might either be a weak no-trump with no higher ambitions or a strong hand that's waiting with interest to see what the opponents do next.
redoubleShows game-forcing strength and an interest in possibly doubling the opponents for penalties.
New suitTrial bid inviting slam and not a cue bid, even at the four level, if a Serious 3NT has been bypassed. Quite likely to be a natural suit. Responder raising the new suit is natural and encouraging with a double fit and a useful holding in the second suit. Other continuations have their expected meaning (Serious 3NT, cue bid, Blackwood, etc.)
3NTSerious 3NT
Game-level rebidGood 7-card suit (missing at most one of the top four honours) that would be (a) happy in game opposite a void and (b) good for grand slam opposite that missing singleton honour.
4NTRKC Blackwood
Jump shift to Blackwood LevelExclusion Blackwood
Jump shift to Grand-Hunting LevelComplete two-suiter. If the partnership had previously bid more than one suit and so there's ambiguity about which suits are being promised, then the other one is the first-bid suit of the player who just jumped.
Any slamNo systemic agreement; the natural interpretation
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Copyright 2015 Finn Clark.