North would like to ask for key cards, however 4NT may get the auction too high. What to do?
Kickback is popular among advanced players but requires careful study and discussion to avoid misunderstandings; disasters will otherwise happen, for example in the deal above 4♦ may be taken as natural.
A simpler alternative is Minorwood. This is also discussed in the first article linked above.
The general idea with Minorwood is that most bids of 4 of a minor ask for key cards with the bid minor as trumps. Exceptions would include:
- When we have already found a fit in another suit
- When it's another convention (e.g. splinter, Gerber, Texas)
- When it's a non-jump bid over an opposing bid, logically competing for the partscore and not in a game force
- When it's the opening bid
- When it's illogical to propose the suit as trumps
- When the auction has limited the combined hands to less than slam values
Responses to Optional Minorwood are the same steps as RKC, except the first step indicates a minimum holding for the bidding. For example:
1♥ 2♦ 3♣ 4♣ 4♦ Minimum hand 4♥ 1 or 4 key cards 4♠ 0 or 3 key cards 4NT 2 key cards without the trump queen 5♣ 2 key cards with the trump queenWhen responder has chosen the first step, asker might choose 4NT or 5 of the minor to end the auction. Or to demand an answer regardless, their bid of the next step asks responder to use the remaining steps in the same way. For example:
1♥ 2♦ 3♣ 4♣ 4♦ 4♥ I don't care, tell me anyway 4♠ 1 or 4 key cards 4NT 0 or 3 key cards 5♣ 2 key cards without the trump queen 5♦ 2 key cards with the trump queenEither way, after the response asker has options available to ask for the trump queen and/or outside kings.
If responder showed 1/4 or 0/3 key cards (step 2 or 3) then asker can bid the next step that is not the trump suit and not 4NT to ask for the trump queen. Responder returns to the trump suit without it, or with it can bid steps to show how many additional kings (first step = 0, next = 1 etc) are held. For example:
1♦ 2♦ 4♦ 4♥ RKC; Minimum hand 4♠ 5♣ Please answer; 0 or 3 key cards 5♥ Queen ask 5♠ Got Q, no kings 5NT Got Q, 1 king 6♣ Got Q, 2 kings 6♦ No Q 7♦ Got Q, 3 kingsWhen the queen ask is not used or has already been answered, asker's bid of the cheapest step that is not the trump suit, 4NT nor the queen ask is a king ask. For example:
1♦ 2♦ 4♦ 4♥ RKC; Minimum hand 4♠ 5♣ Please answer; 0 or 3 key cards 5♦ To play 5♥ Queen ask 5♠ How many non-trump kings do you have?In any case bidding above 5 of the trump suit is always invitational to a grand slam, and responder with sufficient undisclosed tricks should just bid it.