Lebensohl
It is applied by responder after a suit overcall by the 1st opponent over 1 NT openning. Responder forces the opener to bid 3 Clubs by bidding an artificial 2 NT. Then he explains his hand in the second tour of auction. You can examine the following table for whole application of this convention.
Opener
1.Opponent
Responder
Explanation
Opener
1 NT
2 Hearts
- Double
- 2 Spade
- 2 NT
- 3 Clubs
- 3 Diamonds
- 3 Hearts
- 3 Spades
- 3 NT
- Punishment
- Game
- Lebensohl
- Long Clubs, Game Forcing
- Long Diamonds, Game Forcing
- 9+ HCPs, 4 cards of Spades, No Hearts stopper
- Long Spades, Game Forcing
- 9+ HCPs, No 4 cards of Spades, No Hearts stopper
- Pass
- Pass
- 3 Clubs
The above table could be arranged to any suit overcall by the 1st opponent. As you will see from the table the cuebid of the suit shows 4 cards of the other major. If the suit is Club or Diamond, then the cuebid means Stayman convention.
You can examine the second tour bidding by responder after Lebensohl from the following table.
Opener
1.Opponent
Responder
Opener
Responder
Explanation
1 NT
2 Hearts
2 NT
3 Clubs
- Pass
- 3 Diamonds
- 3 Hearts
- 3 Spades
- 3 NT
- Long Clubs, weak hand
Long Diamonds, weak hand 9+ HCPs, 4 cards of Spades, Hearts stopper Long Spades, Slam Force 9+ HCPs, Hearts stopper If the overcall suit is a minor, cuebid after Lebensohl is a Stayman promising stopper. But if the overcall suit is Club then the cuebid after lebensohl will be made by bidding 4 Clubs so there will be no return to 3 NT. So a different approach is needed here. After 2 Clubs overcall, while 2 Diamonds response of the responder will show long Diamonds and a weak hand, 3 Diamonds response will show long Diamonds and a strong hand. Therefore we can utilize 3 Diamonds after Lebensohl for Stayman in such a situation (Thanks to Mr.Ferudun Cangurus for the suggestion). Then you can use 4 Clubs to show 5-5 major distribution. Let us try to explain the situation in the following table. Application in the 2nd table is our addition to the convention.
Opener 1.Opponent Responder Explanation
- 1 NT
- 2 Clubs
- Double
- 2 Diamonds
- 2 Hearts
- 2 Pik
- 2 NT
- 3 Clubs
- 3 Diamonds
- 3 Hearts
- 3 Pik
- 3 NT
- Punishment
- Long Diamonds, weak hand
- Long Hearts, weak hand
- Long Spades, weak hand
- Lebensohl
- Stayman, No Clubs stopper
- Long Diamonds, Game Forcing
- Long Hearts, Game Forcing
- Long Spades, Game Forcing
- No 4 cards major, No Clubs stopper, 9+ HCPs
Opener 1.Opponent Responder Opener Responder Explanation
- 1 NT
- 2 Clubs
- 2 NT
- 3 Clubs
- 3 Diamonds
- 3 Hearts
- 3 Spades
- 3 NT
- 4 Clubs
- Stayman, Clubs stopper
- 5 cards of Hearts, 4 cards of Spades
- 5 cards of Spades, 4 cards of Hearts
- No 4 cards major, Clubs stopper
- At least 5-5 Major distribution
If the overcall is in the third level, then the shifting suit by the responder at the same level is 1 tour forcing. For the minor suit overcalls cuebid could be taken as Stayman but the major distribution should be at least 5-4.