Bridge: The UK Acol bidding style
This guide to the Acol style of bidding is meant to reflect what one might
expect sitting down with a pickup partner and agreeing to play 'Acol' or 'Benjaminised Acol'.
The principles used when both sides are bidding are common to all bridge. You should be
less keen to support partner's possibly 4 card major.
.. much on this page is of course just .. "bridge"
one of a Suit
Weak No Trump
Opening 2 level:
- Standard Acol
- Benjamin style
Overcall bring you outside "system" into "bridge" and the following simply reflects UK style, tempered by
underlying weak 1NT and 4 card majors. Most "Acol" bridge is played in the modern style with takeout
"Sputnik" doubles and unassuming cues available. I would recommend agreeing "sputnik up to
2 level" or whatever explicitly. Check whether jump overcalls
are weak intermediate or strong - not discussed, assume about 13 points and a six card suit.
Overcalling their 1NT
We open, they overcall
- Default defence is natural, and double = top of their range. There are many others ...
They double for takeout
- If they overcall - modern default is double takeout to 2 level (but some still play penalty).
4 card majors are a mixed blessing here. You may have to raise 2M on 3 cards, especially with
a ruffing value. At least partner has got his major bid in somewhat more often!
- A cue bid nearly always shows a sound raise to three (10-12)
- A "modern" raise to 3 or 4 therefore shows length (4+)
- Splinters stay on if played
- 2NT is natural, 3NT to play
They overcall our 1NT
- Minimum new suit is traditionally non forcing - and may be only 3 card
- Raises are made a level higher preemptively (within reason)
- 2NT opposite a major shows the sound raise
- 1NT shows values 7-9 and a stop in the other major
- redouble suggests a penalty 9+. Ideally short in partner's suit. You won't get rich if there is fit about.
They double our 1NT
- Default x is for business
- lebensolh is not o unless agreed - and there are 2 types! Agree whether 3NT shows, or denies a stop!
- Default xx is for business, sets up a forcing pass over their bids
- Pass is also to play
- Suit is weak take out (there are many fancy methods)
- I think that a new suit is forcing unless you have passed. But some play this as NF ...
- ... However a cue says bid again. In the modern style it's a sound raise to 3
- A new suit when passed usually has something for partner's suit
They open a preempt
- 1NT shows 11-14 and a stop
- x should be sound (11+, couple of tricks) in case partner passes it!
- New suit is natural and limited to about an opening bid
- Jump new suit usually intermediate and length. 3/
should be HHxxxx, an entry and 3NT suggestion
- 2NT varies natural or inors, but cue usually suggests a good 2 suiter
- Default double is for takeout = opening hand points, a queen or so lighter in 4th
- (4) x = takeout
- (4) x = penalty ... 4NT is now used for takeout. ie standard methods.
"" Style sheet control has failed.
Pages on this site should still be readable, but layout may be spoiled. Your
browser may be out of date, or style sheets disabled !!
www.chrisryall.net/bridge/acol/intervention.htm © Chris Ryall 1987-2008