Sunday, May 20, 2012

Unusual over Unusual defense to 2NT overcalls

The standard Unusual over Unusual uses the lowest cuebid(usually clubs) to show a limit raise or more in opener's suit and the higher suit(usually diamonds) to show a game force in the unbid suit.
My method uses the lowest cuebid(usually clubs) to show a good hand in lowest of our suits(usually hearts) and uses the highest cuebid(usually diamonds) to show a good hand with highest of our suit(usually spades). The reason I prefer this method as there is usually an available bid between the cuebid and the suit shown which can be used to show interest but not enough to bid game or for a slam try below game.

Over 1 opening:
1NT for the minors:
               Pass: 0-8 HCP
               Double: interest in penalty of at least one suit (9+ pts)
               2♣: 5-8+ HCP, 4 Hearts           2: 5-8+ HCP, 4 Spades
               2: 5-8 HCP, 5+ Hearts            2♠: 5-8 HCP, 5+ Spades
               2NT: 5-8 HCP 4-4 majors
               3♣: 9+ HCP, 4 Hearts              3: 9+ HCP, 4 Spades
               3: 9+ HCP, 5+ Hearts            3♠: 9+ HCP, 5+ Spades
               3NT: 9+ HCP 4-4 majors
 
For a passed hand adjust the HCP from 0-8 to 0-6, 5-8 to 4-6 and 9+ to 7-10(11)

2NT for the minors:
               Pass: 0-8 HCP
               Double: interest in penalty of at least one suit (9+ pts)
               3♣: 9+ HCP, 4+ Hearts            3: 9+ HCP, 4+ Spades
               Next step over 3♣/3:  asks if 4 card suit
               3: 5-8 HCP, 5+ Hearts            3♠: 5-8 HCP, 5+ Spades
               3NT: 9+ HCP 4-4 majors
For a passed hand adjust the HCP from 0-8 to 0-6, 5-8 to 4-6 and 9+ to 7-10(11)
Over 1 opening:

Overcall 2NT for Clubs and Hearts

Double shows the ability to penalize at least one suit.
Pass is weak
3 is limit+ raise in Diamonds
3 is natural and competitive
3 cuebid shows Spades GF
3♠ is natural and competitive

 Overcall 2NT for Minors
Double shows the ability to penalize at least one suit, possibly competitive Diamonds.
Pass is weak
3 is limit+ raise in Diamonds or GF in a Major
3 is natural and competitive
3 is natural and competitive
3♠ is natural and competitive

Over 1/1  opening:

Over a 2NT for the minors, Use a variation on unusual vs. unusual:

Double shows the ability to penalize at least one minor.
Pass hand not worth bidding
3 Major is a competitive raise (8-10 pts.).
3 of other major natural and competitive.
Club cuebid shows Hearts (Limit + over 1, GF over 1♠)
Diamond cuebid shows Spades (Limit + over 1♠, GF over 1

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