Checkback after 2NT jump rebid by Opener
After Opener jump rebids 2NT then 3
becomes Checkback.
We jump rebid 2NT to show 18-19 HCP with a balanced hand.
Example 1
1-1
-2NT-3 is Checkback,
Responses are:
- 3
shows 4
and 3 - 3 shows 4 and denies 3
- 3 shows 3 and denies 4
- 3NT denies 4 or 3
Example 2
1-1-2NT-3
Responses are
- 3 shows 4 and 4
- 3 shows 4 and denies 4
- 3 shows 4 and denies 4
- 3NT denies 4 or 4