A synopsis of Lebensohl, by Brad Bart.
All alertable bids are marked with a *.
Brad Bart's Synopsis of Lebensohl

Lebensohl over 1NT

More and more players are bidding over your strong 1NT openings more agressively than in the past.
Lebensohl is a convention which was developed to deal with interference over your opening bids of 1NT.

In all cases, it is assumed that your partnership opens a strong 1NT, that is 15-17 HCP.

Let us suppose that your partner opens 1NT and RHO overcalls 2H (natural).
Without playing Lebensohl, these are the bidding tools that you have at your disposal.

But there appears to be a problem in this whole structure. When would you ever want to bid 2NT over their 2H?
Presumably, you would need at least one sound heart stopper and some values to bid 2NT.
There is an alternate bid available when holding this hand: it is Double.

Once you realize that a natural 2NT can never exist, you are half-way towards understanding Lebensohl.

Instead, we use a bid of 2NT to describe hands which cannot be handled by the above structure. Don't you wish you had a way of competing in a suit below the rank of the overcalled suit? How about some natural invitational bids? Welcome to the fruits of Lebensohl.

Here is the new structure:

You can generalize this structure for interference over any natural overcall at the two level. The only thing that you must keep in mind are the suits which are above and below the enemy suit so that you can distinguish an invitational sequence from a signoff sequence.


  1. Craig Barkhouse once suggested to me that the invitational and game-forcing responses should be switched and I think that's a good idea. The theory is that (on average) you will hold more game-invitational hands than game-forcing hands when you play 15-17 notrumps. More utility translates into better scores.

    Unfortunately, the down-side is that when you do hold a game-forcing hand, your side will often be guessing which game should be played.

  2. A lot of people play Lebensohl over a 2C overcall. The obvious disadvantage is that you can't slow-show a stopper and bid game-forcing Stayman by using Lebensohl. The other (and perhaps greater) disadvantage is that you lose all of your notrump structure by playing Lebensohl over 2C.

    Bridge theorists agree that sequences starting with an opening bid of 1NT are the best to have. The opener has described their hand very accurately and the responder has a lot of control in placing the final contract because so much structure already exists. They can use Stayman, Jacoby transfers, Texas transfers, minor suit Stayman, and fragment bids to name a few. Why give up on your whole system for something worse? If you do, then I promise to overcall 2C against you every time you sit as my right-hand opponent. Promise.

    My personal preference is to play that a Double of the 2C overcall is Stayman and the rest of my system is on. This way is better than submitting to the damage that the overcall was attempting to do.

Lebensohl over Reverses

A reverse occurs when opener and responder make three bids in three different suits- the first two bids are at the one level and the third is a non-jump bid at the two level of a suit of higher rank than the opener's first bid suit.

Because reverses are forcing to the 3-level, opener should have a king more than opening values (i.e. 16+) to reverse. If opener has a bare 16-17 (i.e. not enough to force to game opposite a minimal response), then responder should have the means to apply the brakes if they also have a minimal response.

The reverse auctions are:

In standard systems, responder's rebid of the fourth suit is natural and game-forcing. In order to apply the brakes, responder rebids his suit or 2NT. When playing Lebensohl over reverses, this doesn't change, however, 2NT is now Lebensohl and can never be passed.

In the following sequences, we will examine the first of the listed reverse auctions: 1C-1S-2H.

Lebensohl in Response to Takeout Doubles

Lebensohl can be used in other bidding situations. The most common of these is over a weak-two by the opponents.

The other sequences are the same as described above.

There are two other auctions where I typically play Lebensohl.

Originally written by Brad Bart on September 22, 1998.