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%HRTitleDate 2013.11.05
%HRTitleEvent "Stratified 0-20 & 20+ "
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%HRTitleSite "MIT/DL Bridge Club"
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[Event "Redouble Trouble -- 11-5-2013"]
[Site ""]
[Date ""]
[Board "6"]
[West "Christianne"]
[North "Margarita"]
[East "Pete"]
[South "Rachel"]
[Dealer "E"]
[Vulnerable "EW"]
[Deal "E:A5432.Q843.AJ.AK T9.752.T9843.873 K86.T9.Q652.Q962 QJ7.AKJ6.K7.JT54"]
[Scoring ""]
[Declarer "E"]
[Contract "4S"]
[Result ""]
{

Rachel's lead of the \S10 was deadly.  Deprived of a heart ruff, I was only
able to come to nine tricks:  four spades, three clubs, and two diamonds (on
the marked finesse).  On any other lead, I just lead hearts until I get my
tenth trick.  

However, this deal is about the bidding, where it was won and lost, not the
play:

1. I opened 1\S, \n
2. Christianne raised to 2\S,\n
3. Margarita doubled for takeout,\n
4. I redoubled,\n
5. Rachel passed after my redouble, \n
6. Christianne bid 3\S, and\n
7. My 4\S concluded the auction.

At least three mistakes were made in the bidding.  What were they?





I'll give you a couple of easy ones:\n
1. The 1\S opening is normal.\n
2. The 2\S raise is normal.


<i>- Pete Matthews</i>}
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[DoubleDummyTricks "43444334449998999989"]
[Generator "BridgeComposer Version 5.43.2"]
[OptimumScore "EW 600"]
[Auction "E"]
1S Pass 2S X
XX Pass 3S Pass
4S AP
[Play "S"]
ST
[OptimumResultTable "Declarer;Denomination\2R;Result\2R"]
N NT  4
N  S  3
N  H  4
N  D  4
N  C  4
S NT  3
S  S  3
S  H  4
S  D  4
S  C  4
E NT  9
E  S  9
E  H  9
E  D  8
E  C  9
W NT  9
W  S  9
W  H  9
W  D  8
W  C  9

[Event "Redouble Trouble -- 11-5-2013  -- SOLUTION"]
[Site ""]
[Date ""]
[Board "6"]
[West "Christianne"]
[North "Margarita"]
[East "Pete"]
[South "Rachel"]
[Dealer "E"]
[Vulnerable "EW"]
[Deal "E:A5432.Q843.AJ.AK T9.752.T9843.873 K86.T9.Q652.Q962 QJ7.AKJ6.K7.JT54"]
[Scoring ""]
[Declarer ""]
[Contract ""]
[Result ""]
{3. North holds 15 high card points.  Nevertheless, East-West will usually hold
at least 18 (12+6) between them, for the opening bid and raise.  The best North
can hope for in the South hand is about 7 points; in this case, South had none
at all.  North needs to have good shape to make such a double, certainly three
cards in each unbid suit.  The doubleton diamond is a major flaw.  If partner
bids diamonds, you either have to pass or bid a four card heart suit at the
3-level.  The \SQJx is a probable defensive trick, but may have little value
with some other trump suit.  Passing is clearly superior, but Margarita decided
to roll the dice.

4. North's double appeared as I was pondering whether to try 2NT, 3NT, 3\S, 4\S
or 3\H (all reasonable, with NT working best this time).  My redouble seemed
obvious, meaning (a) we were going to make 2\S, (b) I could double at least one
unbid suit for penalties, and (c) the opponents must not be permitted to play
undoubled.  Well, perhaps not so obvious...

5. South passed because she was broke.  This was terrible!  When partner gets
redoubled, advancer <i>must</i> pick a suit, if she has a preference.  Points make no
difference.  3\D is correct, and would have been correct on \S1097 \H752
\D10943 \C873.  Partner has promised at least three card support, and this is
the only eight card fit likely (which might be enough to escape the danger). 
Passing the redouble shows no preference, and then doubler takes her best shot.
 (Since West holds four diamonds with an honor, she should double 3\D for
penalty. The double dummy result would be down four, +800, beating any game we
might have made.)

6. West got confused, and removed to 3\S.  This bid is not forbidden, but it
shows complete unwillingness to defend doubled at the 3-level.  More than just
weakness, it shows an offensive hand.  3\S would be correct on \SK986 \H9
\DQ652 \CQ962, and \SK986 \H9 \DQ652 \C9762 is possible.  4\S would be
conceivable on better hands.  On the actual West hand, and most of the time,
<b><i>West should pass</i></b> over South's pass. If North then bid 3\H, my double
might net +1,100.  Over 3\C, I pass, and West gets to double for about +1,100. 
Had West been unable to double 3\C, she would bid 3\S at that point.  After the
redouble, both partners should get a chance to double anything the opponents
bid, unless one partner is unwilling to play that contract doubled.

7. Well, I knew my partner was confused.  Still, in the long run, you don't do
well if you second-guess partner's bids.  It would be my fault to play 3\S
making four, opposite one of the sample West hands in (6).  4\S was the wrong
bid, for the right reasons.  Perhaps I should have hedged my bets with 3NT,
which should be made with careful play on the actual deal, and which partner
could have passed (or removed to 4\S on those other hands).  

}
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1S Pass 2S X
XX Pass 3S Pass
4S AP
[OptimumResultTable "Declarer;Denomination\2R;Result\2R"]
N NT  4
N  S  3
N  H  4
N  D  4
N  C  4
S NT  3
S  S  3
S  H  4
S  D  4
S  C  4
E NT  9
E  S  9
E  H  9
E  D  8
E  C  9
W NT  9
W  S  9
W  H  9
W  D  8
W  C  9
