 
 
by Paul Lavings Bridge Books & Supplies
The Smolen Convention was invented by US expert Mike Smolen (1940-1992). It is an accepted part of nearly every expert’s system, and was adopted as the consensus choice in Bridge World Standard 2001, with 80% approving.
	The starting point is that with 5-4 in the majors and game forcing values, the responder to 1NT goes via Stayman.
If opener replies 2 , no major, then responder jumps in the four card major:
, no major, then responder jumps in the four card major:
| 1NT | 2   |  K 9 8 7 5  A Q 7 5  Q 2  6 5 | 
| 2   | 3   | 
	The 3 here is Smolen, showing fi ve spades and four hearts. Now if the partnership has a 5-3 spade fi t and finishes in 4
 here is Smolen, showing fi ve spades and four hearts. Now if the partnership has a 5-3 spade fi t and finishes in 4 the strong hand will be declarer.
 the strong hand will be declarer.
A secondary advantage is that the following sequences are not required as forcing and are invitational:
| 1NT | 2  * | 1NT | 2  * | |
| 2   | 2   | 2   | 3   | 
This covers those inbetween 8 or 9 HCP hands which previously you would have to treat as either weak, 0-7 HCP, or Game Forcing, 10+ HCP. Now you don’t have to choose between underbidding or overbidding.
You might also be 6-4 in the majors:
| 1NT | 2   | |
| 2   | 3   | |
| 3NT | 4  = 6 spades, 4 hearts, slam interest | |
| 4  = 6 spades, 4 hearts, no slam interest | 
Smolen can also be used with 5-5 in the majors:
| 1NT | 2   | |
| 2   | 4  = 5-5 majors, slam interest | |
| 4  = 5-5 majors, no slam interest | 
	You can also play Simple Stayman and Smolen after a 2NT opening (instead of Puppet Stayman) or overcall or 2 : 2
 : 2 , 2NT to good effect.
, 2NT to good effect.
The arrival of Smolen has caused many other areas of 1NT to be reviewed. Expert practice after a minor suit transfer is now quite different:
| 1NT | 2  * transfer to clubs | |
| 2NT= non super-accept | ||
| 3  = super-accept | 
The super-accept is now the opposite, the next step is the negative, and bidding the suit is the super-accept. This way the strong hand plays the contract if the final contract is fi ve of a minor, or slam in a minor. No longer does responder transfer to a minor and then bid a major with fi ve+ -minor and four-major. Now if you transfer to a minor and then bid another suit, the second suit is a shortage:
| 1NT | 2  * clubs | |
| 2NT** | 3  *** **non super-accept ***singleton or void heart, slam interest | 
This is expert standard practice nowadays – but there would be a sizable community who still play it as natural. Probably 90% of partnerships are yet to upgrade. Opener is now able to judge their holding in responder’s shortage and make a sensibly informed decision. With a four-card major and a longer minor responder now goes via Stayman:
| 1NT | 2   | |
| 2   | 3  /3  Responder has (presumably) a four-card major and the minor | 
Suit bid at the three level
| 1NT | 2   | |
| 2   | 3  /3  Responder has (presumably) four spades and the minor suit | 
Bid at the three-level, probably 5+ but responder could have only four of the minor:
	 KQ65
KQ65
 72
72
 A43
A43
 KQJ4
KQJ4
as well as:
	 KQ65
KQ65
 72
72
 A4
A4
 KQJ65
KQJ65
How about jumps when the response to Stayman is a major:
| 1NT | 2   | |
| 2   | 3  = Unspecified splinter | |
| 4  = Quantitative heart raise, gives the room for partner to bid 4  to say: | ||
| “maybe”, I am not minimum   or 4  = Key Card, agreeing hearts | 
Smolen offers greater accuracy, and should be up there on your system card.