The biggest change in bridge over the last twenty years is how competitive the auction has become. Traditionally it has been a failing in Scottish bridge as the conservative style of many strong players has found them being regularly outbid.
An important consideration for any partnership is to understand what doubles mean: takeout, penalty, game try, ‘values’, negative.
RULE: Low-level doubles are takeout
A double is for takeout if all of the following are true:
As its name suggests, a takeout double asks partner to bid. The doubler must bear in mind that a minimum response could be very weak since his partner normally must bid. It is possible for partner to convert a takeout double to a penalty double by passing, but this requires very strong trumps and should never be done on weakness. Passing a takeout double at the one level is therefore very rare, although it's a more likely option at the two or three level.
Traditionally a minimum takeout double would be:
(1H) Dbl
S Kxxx
H x
D KJxx
C AQxx
Opening values with shortage in the opponent’s suit and support for all the other suits. A takeout double can also be made with a very strong hand.
However, it is rare that you will be dealt the perfect takeout double and today people will double on less suitable hands. The key features of a modern takeout double are:
(1D) ? S KJxx H AJxx D QJx C xx Double: minimum points but support for both majors. | (1H) ? S AQJx H xx Double: a good hand with four spades that will convert a 2C response to 2D. |
(1S) ? S Ax Double: not ideal distribution but non-minimum and important to get into the auction | (1D) ? S AKxx Double: too strong for 1NT overcall, so double and rebid 1NT. |
(1D) ? S AQxxx 1S: I would overcall my 5-card major and then double (or bid) on the second round to show hearts. | (1C) ? S AQx Double: more important to show support for both majors than overcalling a weakish suit. |
A simple suit response shows 0-8 points.
A jump response shows 7-11 points. With a four-card suit and 7-8 points I would normally just make a single suit response. With a five-card suit I would jump with 7-8 points if the points are in my long suit.
A cue bid response shows any 11+ points hand and is forcing to suit agreement or game.
"First double shows values, second double is takeout, third double is penalty"
There are a number of auctions where you make a strength-showing double without specifically showing a suit. In these, the intent behind subsequent doubles can be murky and the above mantra is intended to help.
For example,
(1NT) Dbl (2H=nat) Dbl=? Takeout
(1NT) Dbl (2H=spades) Dbl=? Takeout of hearts!
1D (2D=majors) Dbl (2H)
Dbl=? Takeout
1D (2D=majors) Dbl (2H)
Pass (Pass) Dbl=? Takeout
1H (2NT=minors) Dbl (3D)
Dbl=? Takeout
Once you have made a takeout double, this is presumed to show all the other suits and subsequent doubles are always penalty.
1NT (2H) Dbl=takeout (2S) 1NT (2C=majors) Dbl=values (2H)
Dbl=pen Dbl=takeout