home *** CD-ROM | disk | FTP | other *** search
- BLACKWOOD
-
-
- When no suit has been shown by either partner, (as with an opening
- bid of 4NT), standard Blackwood is used (5C no aces, 5D one, etc.),
- and a "new suit" bid by the Blackwood bidder is a sign-off:
-
- Opener Responder
- 4NT 5C
- 5H - sign-off
-
- A 5NT continuation by the Blackwood bidder asks for kings (6C none,
- 6D two, etc.).
-
- Note that an opening bid of 4NT is Blackwood, not a natural bid.
- To bid 4NT naturally, open 2C and then bid 4NT. See THE TWO CLUB
- OPENING. Also see DOPI AND DEPO for appropriate action when LHO
- overcalls a Blackwood bid.
-
-
- Roman Key Card Blackwood
-
- Roman Key Card Blackwood (RKCB) is an improvement on plain
- Blackwood. When a suit is agreed, either directly or by implica-
- tion, the king of trumps is counted as an ace when responding to
- 4NT--it is a "key card." The responses to 4NT are:
-
- 5C - 1 or 4 key cards
-
- 5D - 0 or 3 key cards (note reversal of usual practice)
-
- 5H - 2 or 5 key cards, no queen of trumps
-
- 5S - 2 or 5 key cards, with trump queen
-
- 5NT - 2 key cards plus an important king
- (i.e., king of partnerhip's second suit)
- but lacking the trump queen
-
- 6 of agreed suit - useful void above key suit
- (and normal response is five of agreed suit)
-
- 6 of lower suit - useful void in suit named
- (and normal response is five of agreed suit)
-
- Holding more cards in trump length than partner could assume, you
- can usually bid as if you have the queen. Whether you need one
- extra card or two depends upon the auction. If you know partner has
- at least five cards in the suit, for instance, then Jxxxx is just
- about as good as Qxxx if you have promised only four cards in the
- suit. Partner, going for seven with AKxxx or for six with Kxxxx,
- won't be too disappointed with either holding.
-
- With a useful void and a normal response that is not five of the
- agreed suit, make the normal response and then cue bid the void
- later or keep on bidding when partner shows signs of stopping. If
- the normal response would cause you to bid five of the agreed suit,
- and the useful void is lower in rank, bid six of the void suit. If
- it is higher in rank, jump to six of the agreed suit. Partner will
- understand how many key cards you have, knowing that your normal
- response would have been in the agreed suit.
-
- If in doubt as to what the "agreed" suit is, the rule is that the
- last suit raised is the agreed suit, otherwise the last suit bid.
-
- Opener Responder
- 1D 2H
- 3D 3H
- 4NT - RKCB, hearts "agreed"
-
- Looking only at the suits bid by opener and responder on the first
- and second round, hearts is the last suit bid, so the agreed suit
- is hearts for purposes of (RKCB).
-
- However, a secondary suit bid (usually a cue bid) on the third
- round doesn't count, even if it has been raised:
-
- Opener Responder
- 1H 1S
- 3H 3S
- 4C 4NT - RKCB, spades "agreed"
-
- Opener Responder
- 1C 2D
- 3C 3D
- 3S 4S
- 4NT - RKCB, diamonds "agreed"
-
- With RKCB, a 5NT bid following 4NT does not ask for kings. It asks
- partner if he has any important feature to show--usually a king
- lower in rank than the agreed suit, but perhaps a singleton with
- lots of trumps. With more than one such feature to show, choose the
- one that is most likely to help partner evaluate grand slam
- chances. If in doubt, bid the lower ranking feature:
-
- Opener Responder
- 1S 3S
- 4D 4S
- 4NT 5C - 1 or 4 key cards
- 5NT ?
-
- Responder bids 6C with the club king (denying the diamond king),
- 6D with the diamond king. With both, she bids 6D, the suit opener
- has cue bid. Opener can now bid 7S with S-K87432 H-A D-AQ932 C-A.
-
- The 5NT bid guarantees that all the aces and the king of trumps
- are held by the partnership. If the partner of the 5NT bidder can
- see that a grand slam is okay on the basis of this knowledge, he
- can just bid the grand slam instead of showing some feature.
- Sometimes a player will bid 5NT just to tell partner that all key
- cards are held, with no intention of bidding seven himself. Then
- partner may have the stuff to bid seven.
-
- RKCB does not apply when an opponent overcalls the 4NT bid.
- Instead, only show aces, using DOPI or DEPO principles. If 4NT gets
- doubled, a pass shows no key cards and a redouble is to play.
- Otherwise the double is ignored.
-
- If the RKCB bidder bids a new suit at the five level after partner
- shows key cards, and the bid could not possibly be meant as a final
- contract:
-
- -- If the new suit is lower in rank than the agreed suit, he is
- asking about the queen of trumps:
-
- Opener Responder
- 1S 3S
- 4NT 5D - 0 or 3 key cards
- 5H
-
- The 5H bid asks, "Do you have the queen of trumps?" Without the
- queen, responder signs off in 5S. With it, she bids the next higher
- ranking bid other than a sign-off, in this case 5NT. Extra length
- can count as a queen, as said before.
-
- When there is enough bidding space below six of the agreed suit,
- it is possible to show one extra card when lacking the queen or
- "queen equivalent" by bidding one rank higher than the queen-
- showing bid:
-
- Opener Responder
- 1C 3C
- 4NT 5C - 1 or 4 key cards
- 5D? 5H - queen or six clubs
- 5S - five clubs, no queen
- 6C - four clubs, no queen
-
- The 3C bid does not absolutely guarantee five cards, which
- therefore represent "an extra card."
-
- -- If the new suit is higher in rank than the agreed suit, he is
- demanding that you bid 5NT. Probably the partnership lacks two key
- cards and he sees that 5NT is the safest contract.
-
- It will often happen that the 4NT bidder cannot ask about the queen
- of trumps without going to the six level. If he needs that
- information for a grand slam bid, he can bid six of a suit that
- could not possibly become the trump suit:
-
- Opener Responder
- 1H 3C
- 3H 4NT
- 5D 6D
-
- Hearts are the "agreed" suit, although responder could have placed
- the contract in 6C if she wished. The 6D bid asks about the queen
- of hearts, without which opener must bid 6H. As usual, two cards
- of extra length (7 cards in this case) may be counted as a queen.
- With the queen of hearts or extra length, opener bids 7C, just in
- case responder would rather play clubs than hearts.
-
- Opener Responder
- 1H 4NT
- 5D 6S - natural, sign-off
- 6C - asks for the heart queen
-
- If responder wants to play in a suit lower than opener's suit, he
- must bid the suit before using RKCB.
-
-
- Exclusion Blackwood
-
- To use this simple version of Exclusion Blackwood, a player first
- makes a splinter bid with a void, then immediately bids 4NT:
-
- Opener Responder
- 1S 4C - splinter bid
- 4S 4NT - Exclusion Blackwood
-
- The responses are the same as for regular RKCB, except that the ace
- of the void suit is not counted as a key card.
-
- This means you cannot use regular RKCB on the next round after
- splintering with a singleton, but you can do so if you have made
- an intervening bid:
-
- Opener Responder
- 1S 4C - splinter bid
- 4D 4H - cue bid
- 4S 4NT - regular RKCB
-
- Another case of Exclusion Blackwood is an immediate 4NT bid after
- cue bidding an opposing suit:
-
- South West North East
- 1S 2C 3C Pass
- 3S Pass 4NT - Exclusion Blackwood
-
- South ignores the ace of clubs when responding. A 4NT bid made by
- a cue bidder's partner is regular RKCB, not Exclusion Blackwood.