System simple 2/1 GF almost always (by unpassed hand) except in comp NT 15-17,Jxf,Txf,Leb(fads), 2S/N=tr->3C/D, 3C=mss (3D asks sigleton), 3D=5card major stayman 2N=20-21,Jxf,Txf,3S=MSS,Leb, all suits transfer/x 3N=gmbl Majors 5cm, Bergen, J2N(4X=2nd suit),1N=1 rd frce, weak js in comp only, 3N=balanced 16-17 HCP (4-3-3-3 or 4-4-3-2) Minors 3+(usually 4 diam), inverted (force to 2nt or 3min) off in comp 2N=12-15or18+, 3N=15-17, bypass 1D unless GF strength Strong 2C - 2D wait, cheapest 3 level is 2nd neg Weak classic weak2s (wider 3rd, stronger 4th), 2NT ask feature Overcalls 8-16, new suit forc in lev1 only, Q=1rd forc, Q then new suit forcing, raises=preemptive NT-Over 15-18,System on-incl Lebenshol if next opp bids Doubles Neg-3S, Resp-3S, Support x and xx ->2H Vs.Doubles Jordan 2N (maj and min), raises are weak, lev1 is forc, lev2 weak if partner opener-new frce 1 level only, xx implies 10+ Preempts 3minor 1st/2nd pos are standard , other agressive, new suits forcing Vs.Preempts X=takeout, Lebenshol/weak 2 all seats Cuebids Michaels over maj or min (2N asks minor), nat over artificial Slam-Bids 1430 RKC(last bid suit unless only 1 fit established), Q ask Suit-leads 4th best, xXx, Akx(x)A NT-leads 4th best,Xxx Carding upside-down signals Misc 4SF(GF), NMF; capp/nt