Competitive Auctions After We Open 1Club

Immediately over 1

1 double

Responder's first callMeaning
Pass0-6 HCP
RedblBalanced hand of 7-12 HCP or 15+
17+ HCP 5+ game force. In other words what a 2 bid would have been if the double had not occurred.
1NBalanced hand of 13-14 HCP
1/2As if no double, no matter what the opponents say that the double means
1 Natural game forcing
2 Not defined (with a positive in s, the first response is 1)
2/2 Natural and weak
2NNot defined
3 through 4 Not changed

The development is similar to the auctions that would have occurred without the double. The 1N rebid over 1 (remember this is a positive now) 1 and 1 bids asks for controls. Step 1 is 0-2 step 2 is 3 and so on. The 1N bid over the redouble shows 17-20 HCP just as it would over the 1Spade response in an uncontested auction and the development is the same as 1Club - P - 1Spade would have been.

1 1//

The idea here is that responder makes a major suit bid at the level of one if he would have with no overcall. If he cannot, then responder shows his control strength and in the case of 3 or 4 2 or 3 controls, shows whether he has a stopper in the suit actually bid by the opponent. By the way, it has been our experience that opponents frequently deviate from – or forget– their announced agreements regarding their defense to a strong Club. As a result we treat all bids at the 1 level as showng the suit actually bid (as opposed to the suit theoretically shown).

1 1N

This is rarely a serious effort to play the hand in 1N. We respond as follows:

Passnegative
dbl6+ HCP, fewer than could have as many as 3 controls
2 3 or 4 2 or 3 controls with enough Queens and Jacks to force to game, no 5 card M
2 54 controls, no 5 card M
2/2natural and weakforcing (can have any number of controls)
2N6+5+ controls
3/3 natural and weak
<html><span style=color:blue>If 1N bidder retreats into a suit after responder's double:</span></html>
passnothing more to say
dblpenalties
new suitnatural, forcing

1 2 suit

passnothing to say
dblshows no long suit, expecting openers to take out
2Nartificial, 3-4 controls
cue5+ controls
new suitnatural, forcing and does not deny 3 or more controls

1 2N or higher

passnothing to say
dbl7+ HCP optional
new suitnatural forcing

After 1 P 1 ?

If they bid a suit at the one level, pass by opener shows a minimum balanced hand. 1N shows 19-20 balanced and 2N shows 21-22 balanced. Double is a three suit takeout of the overcalled suit and a “cue” bid is natural. If the overcall is artificial (e.g. CRASH), then all bids remain the same.

If they bid a suit at the two level, pass is usually a balanced hand.

When opener passes (the one or two level overcall), then a reopening double by responder is an “action” double, showing values.

One final note: If we open 1, the opponents are not allowed to play in game unless that contract is doubled. This results in some forcing pass auctions.

<html><a name=c-enemy-positive> <strong>Interference after a positive response</strong></a></html>

In general, the Alpha and control asking bids are unaffected by opponents interference as long as the suit bid as an ask in the case of Alpha or 1N in the case of a control ask is at a level no higher than it would have been if responder had made the most space consuming response. And if there is interference after an asking bid, then responder give a normal response using D0P1 as the first two steps. If more than two steps are used by the interference between the Alpha or control ask, then the asking bid is “called off”. Examples:

1 P 1 2
?
Pass minimum balanced hand
Xnatural (penalty)
2is Alpha ask
2is Alpha ask
2Nis natural (showing extra values since pass is available to show a balanced hand too)
3is Alpha ask (because it would have been if responder had bid 2).
111P
?

All bids are the same as they would have been had there been no interference except that now 1N is a control ask. Gamma asking bid is on here because apparently the opponents are not going to bounce the auction.

Interference after opener bids expecting Gamma response

D0P1 applies as long as the enemy takes up no more than 2 steps. If 3 steps or more, then gamma is cancelled. Agreed — John Kinn 2017/05/18 15:40

1P1 X
22?
<html><span style=color:blue>D0P1 responses apply:</span></html>
DoubleMinimum hand with a misfit (i.e. < 4 controls and < 3 to an honor and <xxxx)
PassMaximum hand (i.e. second step) with a misfit
2NMinimum hand with a fit
etc.

We will not use Gamma asking bids when there is interference between responder's natural suit positive and opener's second bid. The rationale is that this is the situation where “bouncing” is most likely to occur. So it is more important to show the fit and forego the Gamma ask.