hrothgar, on 2013-March-06, 11:55, said:
2. A transfer suggests bidding a (specified) higher suit, but responder can bid something else
This is a marionette, a form of puppet that can be broken with a particular hand. The type of Puppet Stayman that I play over 1NT is effectively a marionette, as are several flavours of Lebensohl (the ones where you do not
have to bid 3
♣ but usually do). So
Puppet = partner
must make a particular bid (usually the next step)
Marionette = partner
usually makes a particular bid but is allowed to bid something else on occasion
Transfer = partner shows length in a particular suit other than the suit bid (and partner is generally expected to bid the suit shown much of the time)
Relay = partner should describe their hand (but the relay bid itself says very little about my hand)
You can, of course, combine all of these together. For example, a (bad) strong club auction might proceed:
1
♣ = strong, forcing
... - 1
♦ = negative, any non game-force
1
♥ =
puppet to 1
♠
... - 1
♠ = forced
1NT = nat, some range and balanced
... - 2
♣ = Puppet Stayman,
marionette to 2
♦ (partner may break with a 5 card major)
2
♥ = 5 hearts
... - 2NT =
transfer to 3
♣ (shows clubs)
3
♣ = forced
... - 3
♦ =
relay, asking for shape and strength
3NT = max with 2 clubs
Also, while a relay is an asking bid, it is not an Asking Bid in the true sense of the term. An Asking Bid is traditionally part of a scheme where there are several bids, each asking for a specific thing. A relay is generally the use of a single asking bid which asks a more general question. So, for example, if we agree spades at the 3 level, I might use 4
♣, 4
♦ and 4
♥ to ask for controls in the specific suit bid. These are Asking Bids. However, if I use 3NT as a general ask for partner to show controls (and 4 of a suit for something else, perhaps a natural slam try) then this is a relay. You can, of course, also combine relays and Asking Bids but I agree with hrothgar that it is disingenuous to describe a relay system as a series of Asking Bids just to try and get around the regulations.