1430 ROMAN KEY-CARD BLACKWOOD (ideas from Edwin Kantar) 

idea: the four Aces and the King of Trump are included in the responses
	to the Ace ask.  If there are two keycards missing then slam is
	improbable to make.  If there is only one keycard missing then 
	7 is improbable, but 6 is likely.  

Responses to a RKCB 4NT (note: 4NT need not be the ask):
	5C	1 or 4 key cards
	5D	0 or 3 key cards 
	5H	2 without the Q of Trump
	5S	2 with the Q of Trump 

After the Response, 5NT asks for Specific Kings (note: 5NT guarantees  
that the partnership has all 5 keycards):
	NOTE: with no kings, responder bids the agreed trump suit, else:  
	6C	king of clubs, may have other kings
	6D	king of diamonds, denies the king of clubs
	6H	king of hearts, denies the king of clubs and king of diamonds
	6S	king of spades, denies any other king

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The QUEEN-ASK

After 5C or 5D, the Blackwood bidder may want to know about the queen of 
trump.  (5H and 5S, of course tell the asker about the Q).  To discover the
Q of Trump, the asker bids the next highest bid (5D or 5H).  The responses
are:
	cheapest bid of the agreed trump 	DENIES Q of TRUMP 
			
	new suit	Q of Trump with that suit's king
	5NT		Q of Trump with _NO_ side king, but has an 
				extra trump or important Q 
	jump in trump	Q of Trump, _NO_ side king, nothing else important
				(weaker than 5NT) 

NOTE: Unless the "asker" has bid strongly (by cue bidding or other means),
if "responder" has shown 0 keycards and hearts are trump, 5H is not asking
for the Q of trump.  

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The DIRECT-ASK

When the "asker" bids a suit other than the Queen-ask, the "asker" is 
making a direct-ask about that suit.  With enough room partner responds
with (enough room = at least 1 steps between the ask and trump): 
	1st step:	no 2nd or 3rd round control
	2nd step:	3rd round control (Qxx or xx)
	3rd step:	Kxx(x)(x)	
	rebid of ask:	KQ(x)(x)
	jump in trump:  x or Kx   

"NO ROOM" with no room between the ask and the trump suit, the responses are:
	1st step:	no 2nd round control 
	2nd step:	Kxx(x)(x)
	rebid of ask:	KQ(x)(x)
	jump in trump:	x or Kx 
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The DELAYED-ASK

After "asker" makes the Queen-ask, a new suit is an ask in that suit.  
With enough room (1 or more steps between trump and ask) partner responds:
	1st step:	no 2nd or 3rd round control
	2nd step:	3rd round control
	3rd step:	Kxx(x)(x)
	rebid of ask:	KQ(x)(x)
	jump in trump:	x or Kx

"NO ROOM ASKS" ask for 3rd round control, the responses are:
	1st step:	no 3rd round control 
	2nd step: 	Qx(x) 
	7(ask):		QJ(x)(x)
	7(trump):	xx:
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