Eric Kokish came up with what he called two-way game tries.
1 | Pass | 2 | Pass |
? |
When opener relays with 2NT (asking for a help suit), responder will bid the cheapest suit in which they would accept a help-suit game try. So if responder has QT6 J84 KQ632 86, they'll bid 3 over 2NT. This not only tells partner about help in diamonds, but since 3 was skipped over, opener knows that responder has a poor club holding.
So let's say the auction went 1 - 2 - 2NT [asking] - 3 [showing goodies in clubs], but opener wasn't interested in the club suit. They can now bid 3 or 3, asking for help there. So, theoretically, an auction might go like this:
1 | Pass | 2 | Pass |
2NT* | Pass | 3** | Pass |
3*** | Pass | 3**** | Pass |
4 |
It gets just a bit trickier for a lot of folks when hearts are trumps. If we were to use 2NT as the "help-suit ask" over 2, there would be no way to show spade help-- so we use 2 as the asking bid.
1 | Pass | 2 | Pass |
? |
One more little space-saving maneuver: When partner asks with 2, to show spade help we bid 2NT.
So if the auction goes:
1 | Pass | 2 | Pass |
2* | Pass | 3** |