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[Event "##01/18/11  Barometer Game"]
[Site ""]
[Date ""]
[Board "24"]
[West ""]
[North ""]
[East ""]
[South ""]
[Dealer "W"]
[Vulnerable "None"]
[Deal "W:A76.K9865.T62.J7 K2.AJ7.AKQ75.A62 93.43.J943.KQ854 QJT854.QT2.8.T93"]
[Scoring ""]
[Declarer "N"]
[Contract "4S"]
[Result ""]
{GIB software bid the hand as above.  If you play Jacoby and not Texas, then
the auction might be 2NT - 3\H; 3\S - 4\S, to the same effect.  Some Norths
would open 2\C, planning to rebid 2NT to show a slightly stronger hand, given
the fifth diamond.  After 2\C - 2\D; 2NT, the auction should proceed the same.
 If you permit a 2\S response on this hand, then the auction should be 2\C -
2\S; 2NT - 3\S; 4\S.  GIB easily made 12 tricks on this hand, as should every
declarer in spades.  The slam is slightly less than 50%, and hard to bid, even
if you wanted to swing.  If West leads a heart, declarer should finesse.  This
is matchpoints, where every trick counts.  Playing the ace not only guarantees
a heart loser, it virtually assures the opponents will get a third round ruff,
if one is available (as it is here).  If the lead is a stiff, so be it.  On a
club lead, pop the ace and take your pitches before leading trumps.  Four
Norths played in spades, making 480, 480, 420, 170.

Paul Wendt pointed out this deal, which assured another 64% win for him and
Nate Glasser.  They defended 3NT, which might result from an auction such as
2\C - 2\D; 3\D - 3\S; 3NT.  On this auction, North's 3\D is poor - it throws
all the notrump systems out the window, for a small chance of a diamond slam. 
With that suit, South might still persist in spades, even suspecting a
singleton opposite.

As Paul pointed out, if East leads a club at 3NT, for maximum tricks, declarer
must duck one round and win the second.  (This is standard procedure in this
case, but you have to get it right.)  Alternatively, if East tries a heart
lead, declarer must play <i>small</i> from South and win with the <i>ace</i> in North, to
preserve a sure entry to the spade suit.  South establishes spades, and then
forces an entry in hearts - likely ducking one club to isolate East, when the
opponents switch.  5 spades, 2 hearts, 3 diamonds and 1 club is 11 tricks,
except that the defenders take three first.  [It makes no difference with so
many tricks, but note the simple squeeze against East in the minors, North
having all diamonds, and South having the lead with the \C10 in hand - East is
powerless as South cashes out.]       - Pete Matthews
}
[Auction "W"]
Pass {No suitable call -- 11- HCP; 12- total points}
2NT {Two NT opener -- 2-5 C; 2-5 D; 2-4 H; 2-4 S; 20-21 HCP}
Pass {No suitable call -- 20- total points}
4H =1= {Texas -- 6+ S; 5+ total points}
Pass {No suitable call -- 11- HCP; 12- total points}
4S {2-5 C; 2-5 D; 2-4 H; 2-4 S; 20-21 HCP}
AP
[Note "1:Texas -- 6+ S; 5+ total points"]
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[DoubleDummyTricks "aca98aca982134521345"]
[OptimumResultTable "Declarer;Denomination\2R;Result\2R"]
N  S 12
N  H 10
N  D  9
N  C  8
N NT 10
E  S  1
E  H  3
E  D  4
E  C  5
E NT  2
S  S 12
S  H 10
S  D  9
S  C  8
S NT 10
W  S  1
W  H  3
W  D  4
W  C  5
W NT  2