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1 Heart/Spade Opening:
4 cards and 5+ cards in other suit OR 6+ cards, 10-14 HCP
(with 5-5 in majors bid weaker one first=the only case where opened suit is 5 cards long, with 4 cards in minor and 5 cards in major open 2 in minor)
1S over 1H= 5 cards, asks to raise with 3 card-fit, bid 1NT with singleton spade and bid minor or 6-card heart suit with dubleton spade.
1NT= forcing. This bid can be made even with 0 HCP, generally with balanced hands
5-card other or 6-card H/S suit on 2 level
with maximum and 6-card or 7-card H/S suit on 3 level
second bid by the responder:
pass = 0-10 HCP
return to suit opened (H/S) - sign off
2 NT =invit to game without fit,
suit raise= invitational with fit,
unbid suit: asking for stopper in that suit, inv or better
ladder response :
(1) min + stopper, (2) min no stopper (3) max + stopper,
(4) max no stopper (5) min + singleton (6) min + void
(7) max + singleton (8) max + void
2 C/D= natural 5+ cards, forcing to 2NT
2H/S=– raise with 4 cards, limit or less
2H over 1S= 5+ cards, forcing to 2NT
2S/ 3C/3D=
weak jump shift (wjs)
3H/S=
raise with 5 cards, sign off
double jump in new suit= fit + side suit, preemptive (not a splinter or ace-asking)
4H/S= raise with 6 cards, sign off