GRAND SLAM BIDDING - HASTING TEAMS

At the Hasting teams last weekend there were 4 opportunities to bid Grand Slams, although 2 relied on finesses to make. With the 64 opportunities pairs had to bid them only 4 Grand Slams were bid by the field with only 3 making.

At teams bidding and making Grand Slams provides a much greater reward for the risk than at pairs but also much greater potential penalty if unsuccessful.

Board 23 round 6 was one such opportunity and could have been influential on the final placing with neither of the top 2 finishers or their opponent’s bidding a Grand Slam; indeed no pair bid and made a Grand Slam on this board.

Board 23 Dealer S All Vulnerable

 

                     Spade-small KJ5

                     Heart-small AJ652

                     Diamond-small AKT52

                     Spade-small -

Spade-small T764.                                 Spade-small Q9

Heart-small 94.                                     Heart-small T7

Diamond-small J96.                                   Diamond-small 73

Club-small T864.                                 Club-small KQJ9532

                    Spade-small A832

                    Heart-small KQ83

                    Diamond-small Q84

                    Club-small A7

 

How can NS  bid 7NT for this  board  with no opposition bidding?

      a). Playing Acol?

      b) Playing Precision?

 

Started by SEAN LYNCH on 28 Mar 2019 at 12:58AM

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  1. Brad Johnston28 Mar 2019 at 01:30PM

    Surely the target should be 7H, as some of the time you may need to ruff a diamond if they break 4-1.

    With South as the dealer, there isn't much difference in playing acol vs playing a precision system with a weak(-ish) NT; as the S hand shouldn't qualify for a precision 1C opener. The other main considerations are that precision players are somewhat more likely to include some GF relay to figure out what one hand has exactly - but barring that I could see any of the following sequences having chances:

    1H p 2NT! p; GF H raise
    3D p 3S p; Balanced extras // Strong C splinter

    3N p 4C p; S-cue bid // C cue (confirming void)
    4D p 4N p; Last train // keycard

    5D p 5S p; 3 keys, Q ask
    5N p 6D p; Q no Ks // 3rd round control ask

    6N p (7H/7N); The QD, N's choice of contract.


    And if South opens a 14-16 or 15-17 NT:

    1N p 2D p;
    3H p 3N p; Super-accept // Slam try with S control

    4C p 4N p; C control // Keycard

    5D p 5S ...; This all follows on from above

    Or not playing a method where you'd super-accept on this hand:

    1N p 2D p;
    2H p 3D p; gf 5+/4+
    3H p 3N p; 3 Hs/ Slam try with S control ...
    4C p 4N ...


     

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