Opener's jump rebid to four of original minor is strong raise. Unbid minor forcing and artificial after one-notrump rebid, requests support. Three clubs artificial, may be prelude to signoff, after two-notrump jump by opener. Reraise to three of major preemptive. Repeat same-suit double by negative doubler for takeout.
Weak jump responses after overcall of minor opening.
Jump cue-bid by opener is splinter raise. Pass and pull strong in forcing situation. Direct jump cue-bid natural over minor, asks stopper over major. Maximal overcall double of raised suit. Double of free new-suit bid by responder shows fourth suit plus tolerance.