Source:
AUSTRALIAN YOUTH BRIDGE BULLETIN JUNE – JULY – AUGUST 2015

EXTENSION TO YOUR STRONG 2

– KOKISH RELAY
If you don’t play the Kokish Relay yet, it is a very useful add-on tool for your strong 2

opening at little cost. Here is the gist of it:
2 |
Pass |
2 *(*Assuming 2 = Waiting) |
Pass |
? |
|
|
|
2 |
Kokish Relay, multi meaning. A puppet to 2 so opener can clarify |
2NT |
22-23 balanced (Assuming a 2NT opening shows 20-21 balanced) |
Other |
As per normal |
After 2

-2

-2

-2

(2

is forced):
2 |
Pass |
2 * (*Assuming 2 = Waiting) |
Pass |
2 |
Pass |
2 |
Pass |
? |
|
2NT |
(24)25+ balanced |
3 |
5+ 4+ |
3 |
5+ 4+ |
3 |
6+ (single suited hand) |
3 |
5+ 4 |
The advantage here is that opener is able to show a 25+ balanced hand. Rebidding 2

shows either a big balanced hand, or a strong hand with natural hearts. As the 2

bid is a puppet to 2

, responder is forced to bid 2

so opener can clarify his true intentions.
If you want to get complicated, one slight improvement is to play Transfer Kokish Relay. That is, after 2

-2

-2

-2

, 3

+ bids are transfers. So 3

would show 5+

4+

, 3

shows 6+

’s, 3

shows 5+

4

, and 3

shows 5+

4+

.