[csdenmark]

I need the definition of convention '6 aces Blackwood'.


Could it be 'Byzantine Blackwood'?


Anybody who will be able to help?

[HeartA]

csdenmark, on Mar 10 2005, 05:19 PM, said:

I need the definition of convention '6 aces Blackwood'.


Could it be 'Byzantine Blackwood'?


Anybody who will be able to help?

If you use 6 Aces (keycards) blackwood, you need to establish 2-suit fit first:
1♠-2♥
3♥-3♠
4NT

This 4NT is 6-keycards blackwood. As how to answer it, you may discuss with your pd.

[Rebound]

It's really just an extension of RKB where there's a double fit so one more K and Q.

According to Eddie Kantar in Roman Keycard Blackwood - Slam Bidding for the 21st Century, the steps are as follows, although, of course, your partnership may have different ideas:
1st step - 1 or 4 (out of 6)
2nd step - 0 or 3
3rd step - 2 w/ neither Q
4th - 2 w/ lower ranking Q
5th - 2 w/ higher Q
6th - 2 w/ both

He recommends holding 3 keycards to use RKb in a double agreement sequence due to the large number of responses potentially getting too high otherwise. Note that a cue bid of the second suit does not equal double agreement and applies "only when you support your partner's suit and your partner immediately supports yours...."

I just happened to have the book handy so I thought you might find it useful...

[csdenmark]

Thank you both - I will look Kantar up - I think I have his books. The only option I was able to find was Byzantine Blackwood and it might very well be correct as that convention should have responses similar to RKCB. This convention is used in 3 cases in Icelandic Precision - a rather complicated symmetric relay system. I have stated the sequences below:


1NT-2♥=#Trans->♠
*5+♠
*5+-4+,minors
*4♠+5♥




1NT-2♥-2NT=MAXIMUM,S:4cd,better♦

3♣=To play 3♦
3♦=GF,Both minors,H:Single/void
3♥=Re-transfer -> ♠
3♠=Single/void
3NT=*2-2-4-5
*2-2-5-4
4♣=*2-1-5-5
*1-2-5-5
4♦=*1-1-5-6
*1-2-6-5
4♥=Void,Slam?
4♠=Void,Slam?
4NT=6 aces Blackwood
5♣=Signoff
5♦=Signoff

--------------------

1NT-2♥-3♣=MAXIMUM,S:4cd,better ♣

Pass=Signoff
3♦=GF,Both minors,♥:Single/void
3♥=Re-transfer -> ♠
3♠=Single/void
3NT=*2-2-4-5
*2-2-5-4
4♣=*2-1-5-5
*1-2-5-5
4♦=*1-1-5-6
*1-2-6-5
4♥=Void,Slam?
4♠=Void,Slam?
4NT=6 aces Blackwood
5♣=Signoff
5♦=Signoff

-------------------
1NT-2♥-2♠-2NT=Minor,2-suiter

3♣=Best minor
3♦=Best minor
3♣♦-3♥=Single/void
3♣♦-3♠=Single/void
3♣♦-3NT=*2-2-4-5
*2-2-5-4
3♣♦-4♣=*2-1-5-5
*1-2-5-5
3♣♦-4♦=*1-1-5-6
*1-2-6-5
3♣♦-4♥=Void,Slam?
3♣♦-4♠=Void,Slam?
3♣♦-4NT=6 aces Blackwood
3♣♦-5♣=Signoff
3♣♦-5♦=Signoff

[han]

I also play 6-keycards RKC when one partner has shown a balanced hand and the other partner has shown a 2-suiter.

In case of a double fit, we only count the queen of the higher ranking fit. Not perfect, but simple.