System 2/1 (Nelson and Qi) NT 1N:15-7 2N:20-1 3N:gambling, no outside stopper 2C = puppet stayman 2D/H=JXF 2S=MSS 2N/3C=XFER to minor 3D/H/S splinter 4D/H = texas xfer leb - fast deny. neg X through 3S system on over X and capp 2C Majors 5cm, double raise invitational splinter, 3n = 4c support 1NT forcing, 2NT = 13+ forcing. Minors 1C/1D convenient minor invm raises. 1n = 6-10, 2n = 10-12 3n = 13-15 2D = flan 11-15 4spades and 5hearts. 2NT = inquiry Strong 2C shows 22+ balanced or 9+ tricks, 2C-2D artificial, 0-7. cheapest minor = 2nd negative Weak 2H, 2S shows 5-11 hcp, good 6 cards, new suit NF, 2N=ogust Overcalls 8-16 HCP, cue is 1R force, jump overcall is pre-emptive new suit NFConst NT-Over 1N:15-8, 11-4 balancing, systems on, Unu 2N = Lower 2 unbid Doubles Negative -> 4D! Responsive thru 3S, support thru 2S VS.Doubles New Suit Force 1-level, 2N = Limit raise or better! XX implies no fit. Preempts may be light, sound if vul Vs.Preempts Dbl is takeout at 2 and 3 level, 2N = leb Cuebids Michaels (5-5), natural over artificial Slam-Bids rkcb 1430, GSF, DOPI, DEPO, Gerber over 1N, 2N openings, Suit-leads 4th best, Kqx Qjx Jtx T9x kJtx kT9x qT9x xxX xxxX xxxXx aKx NT-leads 4th best, aKjx aQjx aJt9 aT98 Kqjx kQt9 kJt9 kT98 Qjtx qT98 Jt9x T98x xxX xxxX xxxXx Carding standard, odd/even on first discard. primary attitude Misc new minor forcing, 4sf 1round, weak jump shift western cuebid