Tuesday, August 5, 2008

Acol Summary

System New Zealand ACOL
NT 1NT = 12-14, 2NT = 20-21, 3NT = Gambling, Jacoby Transfer, 2♠ range finder, 2NT single-suited minor, 3♣/3 inv
Majors 4-card Majors, Jacoby 2NT, Raise = limit (pre-empt over X)
Minors 4-card minors, limit raises, 1NT 6-10, 2NT 11-12, 3NT 13-15, weak jump shifts to 2/♠
Strong 2♣ shows 24+ balanced or 9+ tricks, 2 artificial, may be waitng
Multi 2 shows 5-10 hcp with good 6-card Major OR 22-23 balanced, 2/♠ 3/♠ pass or correct, 2NT Artificial force
Weak 2, 2♠ shows 5-10 hcp, 5-card suit and an undisclosed 4+ card minor, 3♣ pass or correct, 2NT Artificial force
Overcalls 8-16 hcp, cue is one round force, jump overcall is pre-emptive
NT-Over 1NT = 15-18, 2♣ Stayman etc is system ON (as if we had opened 1NT), Unusual 2NT = Lower 2 unbid suits
Doubles Negative to 3♠
VS.Doubles New Suit Force 1-level, 2NT = Limit raise or better
Preempts may be light
Vs.Preempts Dbl is takeout at 2 and 3 level, 2NT over weak 2 = 15-18 hcp Balanced
Cuebids Michaels (5-5)
Slam-Bids Roman Key-card Blackwood, GSF, DOPI, Gerber over 1NT, 2NT openings, respsonses and rebids
Suit-leads 4th best, Top of honour sequences except Ace/Queen asks attitude and King asks count. Kqx Qjx Jtx T9x kJtx kT9x qT9x xxX xxxX xxxXx Akx
NT-leads 4th best, Top of honour sequences except Ace/Queen asks attitude and King asks count or unblock. Kjx aQjx aJt9 aT98 Kqjx kQt9 kJt9 kT98 Qjtx qT98 Jt9x T98x xxX xxxX xxxXx
Carding high discard encourages, low discourages, frequent count signals