Lesson 23 - REVIEW

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R-BR 23.1 - Blackwood Convention

As explained earlier bidding . . . . . . . . . . . . . are . . . . . . . . . . . . . . . . . . . messages in the auction (using regular bids) to convey . . . . . . . . . . . . of a hand.
The Blackwood Convention starts with a bid of :

• . . . . . . . . which conveys the message :
"Partner, . . . . . . . . . . . . . . . . . . . . ?"

• Partner replies :

These bids tell absolutely nothing about the . . . . . . . . . , but only indicate the . . . . . . . . . . . . held in Partner's hand.
When the 4NT bidder discovers his side holds . . . . . . . . . . . . . . . . . ., he me follow on with a bid of :

• - this shows that the side holds . . . . . . . . . . . and conveys the message :
"Partner, . . . . . . . . . . . . . . . . . . . . ?"

• Partner replies :

The Blackwood convention is used in trump contracts where some of the 33 points required for a Small Slam may include 4 or more shortages points, and the Opponents may therefore hold 2 Aces. The Blackwood Convention guards against this.

The bid of 4NT is not Blackwood when it is a response to a . . . . opening bid. In such case it is an . . . . . . . . . . . bid for . . . . . . . .

Enemy Interference
When the enemy tries to spoil the party with an interference bid over Partner's Blackwood 4 NT responses follow the so called . . . . . . . . . . procedure.
For example after 4NT - (5D) - You ?

 Double Pass (5 in next suit) 5H (5 in suit after that) 5S = . . . . . . . . . = . . . . . . . . . = . . . . . . . . . = . . . . . . . . .

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R-BR 23.2 - Roman Keycard Blackwood

Roman Keycard Blackwood is a useful variation on the standard Blackwood conventions and includes asking for the . . . . . . and . . . . . . . of the . . . . . . . suit. if no . . . . . . suit has been agreed upon the last bid suit counts as the . . . . . . suit.

The key cards are the . . . . . . . . . plus the . . . . . . . . .
The responses to 4NT then are :

After a 5C or 5D response the . . . . . . . bid (excluding the trump suit) asks for the . . . . . . . . . The . . . . . . . . . response to that denies the . . . . . . . . . . . . The next higher bid promises the . . . . . . . . . . .

A subsequent bid of 5NT asks for the . . . . . . as in standard Blackwood, but the . . . . . . . is not shown again.

Against enemy interference use . . . . . . . . .
For example after 4NT - (5D) - You ?

 Double Pass 5 in next suit 5 in suit after that = . . . . . . . . . key cards   = . . . . . . . . . . key cards   = . . . . . . . . . . key cards . . . . . . . . . . . . . = . . . . . . . . . . key cards . . . . . . . . . . . . .

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R-BR 23.3 - Cue bidding

Blackwood and Roman keycard Blackwood are useful tools for investigating the possibility of a Slam contract for many hands. However for some unbalanced hands these conventions may not produce the required answers.
Take this hand for example :

S - A J 10 9 8 6 4     H -     C - K Q J     D - A Q 2

Bidding 4NT Blackwood is fine if Partner holds both Aces, but what if he only holds one ? The Ace of Hearts is not of much use with this hand, while the Ace of Diamonds will make all the difference.
This is where cue bidding becomes most useful.
1. When a . . . . . . . suit has been found

2. and . . . . . . has been reached or a . . . . . . . . . . . . . . . . . . situation exists

3. any bid of a new suit is a . . . . . . bid, showing . . . . . . . . . . . . . . . in that suit

First round control is either . . . . . . . . . . or a . . . . . . .
Second round control is a . . . . . . . . or a . . . . . . . . . .
Cue bids are bid . . . . . . . . , cheapest first round control . . . . . . Skipping a suit . . . . . . . . first round control in that suit.
After first round control have been bid, later cue bids show . . . . . . . . . round control.

Controls in the trump suit are . . . . . . . . . Bidding the trump suit is a . . . . . . . . . . saying : "I have . . . . . . . . . . . . . at this point Partner."
After the cue bidding you still can bid 4NT Blackwood if required, for example to distinguish between . . . . . and . . . . . . .

Here is a typical example.
 West S - A J 10 9 8 6 4 H - D - K Q J C - A Q 2 East S - K Q 5 2 H - 7 5 3 2 D - A 8 C - K J 9

The auction, using cue bids, goes like this :

 West   1S   . . . . . . . . . .   . . . . . . . . . . . .   5NT   . . . . . . . East -   3S -   . . . . . . . . . . . -   . . . . . . . . . . . . -   . . . . . . . . . . . .

Cue bidding is the best way on investigating Slam possibilities when you hold a . . . . . , or suspect that your Partner may hold a . . . . or . . . . . . . . . .

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R-BR 23.4 - Trump Honours asking bid

A 5NT bid, not preceded by a Blackwood 4NT, is a . . . . . . . . . . . . bid, asking Partner how many of the . . . . . . . . Honours he holds in the . . . . . suit.
Replies are :

This is a most useful Convention when used in conjunction with cue bidding, where the . . . . . . controls are not being investigated.