# LEARNING CENTER

Larry's Bridge Quizzes
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After They Interfere (Quiz #7 of 7)

In this series of 7 Quizzes (this is the seventh) our partner opens on the one level and the opponents overcall or Double.

In this quiz, the opponents overcall with a natural bid on the three level, or make a 2-suited overcall. First, let's examine the situation where we've opened on the one level and they've overcalled with a natural bid of 3, 3, 3 or 3:

With 0-5, responder will pass.  Even with many 6, 7 or 8 point hands (without support or the ability to make a negative double), responder could pass.

Double is negative. This means at least 8 or 9 points and typically the other 2 suits. The focus is on the other major (if there is one). Even if our opening bid was 1NT, the double should be played as negative.

3NT=12-17 (approximate) balanced with their suit stopped

Responder can raise (as if there were no overcall) to the 3-level. This shows about 8-11 in support.

A cue-bid shows a GF raise. Example:  1 (3) 4= GF raise (better than 4).

A jump-raise to game shows a decent hand (but typically no slam interest since no cuebid).

A bid of a new suit is natural (5+ cards) and GF.

They show a 2-suiter (Michaels or Unusual NT)

A raise to the 2-level (if possible) means what it would have meant without interference. A raise to the 3-level shows support and about 8-11 points. A raise to game shows a bit more. Double is penalty-oriented.

This is a tough area. Experienced partnerships will want to discuss what it means if you bid one of the opponents' know suits. For more science, click here.

With neither side vulnerable, what is your call as South?

West  North  East South
1 3    ??

K32
KJ3
K7
A5432

Choose One:

Pass

Double

3NT

4

4

5

With neither side vulnerable, what is your call as South?

West  North  East South
1 3    ??

AKQ32
8
K72
A432

Choose One:

Pass

Double

3

3NT

With neither side vulnerable, what is your call as South?

West  North  East South
1 3    ??

32
83
AKJ7
AQ432

Choose One:

Pass

Double

4

4

4NT

5

With neither side vulnerable, what is your call as South?

West  North  East South
1 2    ??

Q2
KJ87
AK102
875

Choose One:

Pass

Double

2

2NT

3

3NT

With neither side vulnerable, what is your call as South?

West  North  East South
1 2NT    ??

KJ82
A10432
KJ2
2

Choose One:

Pass

Double

3

3

3

3

4

4

With neither side vulnerable, what is your call as South?

98
Q98
KQ1092
432

WestNorthEastSouth
1  3  ?
Choose One:

Pass

Double

3

3NT

Other

With neither side vulnerable, what is your call as South?

KQ432
K762
43
62

WestNorthEastSouth
1  3  ?
Choose One:

Pass

Double

3

3

Other