Zeta occurs in one situation only, which is a jump-shift by Opener immediately over a positive
response to 1♣. There is no such thing as a repeat Zeta, but high-level Beta is always available if Responder
shows a range of controls in response to Zeta.
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ZetaZeta is useful occasionally when Opener has a very long solid suit of their own, no fit for Responder's suit, and they don't really care whether or not Responder can support their suit or not. Zeta sets the trump suit unconditionally and at the same time it asks for general Controls in exactly the same way as Beta. |
When is a Bid Zeta?
Scales for Zeta
There are only two scales available for Zeta, depending on whether or not Responder is a passed hand:
Normal Scale
- The normal scale for Zeta is used when Responder's strength is unknown:
- : 0-2 Controls
- : 3 Controls
- : 4 Controls
- : 5 Controls
- ...etc etc (open ended)
Weak Scale
- The weak scale for Zeta is used when Responder is a passed hand:
- : No Controls
- : 1 Control
- : 2 Controls
- : 3 Controls
- : 4 Controls
Notes
- If Opener does have a fit for Responder's suit, it is often cheaper and easier to use a low-level Beta
followed by a Gamma in Responder's suit, even if Opener would rather play in their own suit. They can
always jump-shift into their own suit later on, and do have the benefit of being able to make an Epsilon
Ask in their own suit, something not possible if they use Zeta. In any case, in such a situation the solidity
of the combined fit in Responder's suit will often limit how high the hand can be played in any case. Zeta
is most useful when Opener has a singleton or void in Responder's suit, or perhaps a holding such as Ax.
If Opener has a holding in responder's suit as good as Hxx it's almost never worth using Zeta.
