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Topics - jcreech

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1
Sleight of Hand / Should declarer work this one out?
« on: March 27, 2022, 03:24:01 AM »
I kibitzed this hand, and declarer made what I considered a give-up play at trick five.  I would like to pose an alternative line, and would like to know if it would be plausible at the table.

The contract was 6 !H by South (rotated for discussion purposes).  I won't bother with the auction as both tables were in the same contract.

 !S J4
 !H AKJT7
 !D AK8
 !C A52

 !S A
 !H 96432
 !D J76
 !C K864

The opening lead is a spade: 5,4,6,A
T2: !H 2, !S 3, !H A, !H 5
T3: the !S J is ruffed
T4: a low heart to the K, LHO pitching the !S K

At this point the actual declarer played another heart, effectively giving up a club and possibly a diamond.  I think a third heart is premature.  I also think that the opening leader should have pitched a diamond and kept a spade to make the position harder to read; the pitches say to me that he is coming down to only minor-suit cards, and that RHO started with six spade, three hearts, and so only four minor-suit cards.  On this defense, it should have been easy to find the winning line.  So lets take a step back, and have our RHO retain a spade.

So at trick five, the only chance is to find the !D Q doubleton, and depending on which defender drops the queen, decide on how to proceed.  As it happens, it is RHO with the doubleton queen, so the suit is stripped; a third round would allow the diamond to be ruffed and RHO still with a safe exit.  So now you have to assume RHO is 6-3-2-2, any other lay of the cards will defeat you; you play the top two clubs and see the !C Q drop from RHO.  Now it doesn't matter whether you play the diamond or a heart, you just have to avoid playing a club.  If you read the hand correctly, RHO will be endplayed into giving you a ruff and sluff.  Just don't pitch the club from the wrong hand!

Since you have paid your dues to the bridge gods, the slam comes home.  The question, though, remains:  should declarer have found this line at the table?

The full hand:

Dealer:  North
Vul:  Both

           !S J4
           !H AKJT7
           !D AK8
           !C A52

 !S K532          !S QT9876
 !H                  !H Q85
 !D T9543        !D Q2
 !C JT97           !C Q3

           !S A
           !H 96432
           !D J76
           !C K864

2
IAC & Master Solvers Club / The Bridge World 2021 Annual Honor Roll
« on: November 03, 2021, 11:58:25 AM »
2021 MSC Honor Roll
The Bridge World publishes a yearly honor roll. IAC members making the published list are below.

BBO NAMENAMERANKYEARLY-TOTAL
CCR3Pat McDermott   9 8280
JCreechJames Creech  30 8080
Masse24Todd Holes  44 7970
BabsBabs Giesbrecht  53 7920
KenBergKen Berg  93 7630
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Good job! On to the new year. May it be a good deal better than 2021.



3
Sleight of Hand / Bidding options and inferences
« on: October 07, 2021, 09:56:21 PM »
This hand came up recently.  I thought there were some interesting bidding options and inferences that could be taken.  Since it was a first-time partnership, with the only discussion being 2/1 and fake the rest.  Even in this hand, the opponents were kind enough to let us discuss during the auction how we were treating Drury, partner removed the need for additional discussion with his next bid.  I do believe the choices each of us made, took into consideration that there had been no discussion, trying to avoid bids that might be ambiguous.

I rotated the hands for convenience and there was no opposition bidding.

West
 !S KQJ
 !H 875
 !D A85
 !C J852

East
 !S A976543
 !H AK
 !D Q
 !C AK7

West                              East
Pass                              1 !S
2 !C (Rev Drury)             4 !D (Splinter)
4 !S                               4 NT
5 !S (2 keys + Q)            5 NT
6 !S  (no K's)                  Pass

The partnership was first-time, and the only discussion was 2/1 and fake the rest.  The opponents allowed us to clarify that Drury was reverse one-way Drury, but the splinter would have eliminated the need for that information.  However, I thought the hand had some interesting possibilities and inferences that neither my partner nor I were willing to "fake."

I am certain that we could have bid more confidently had we had a different version of Drury in place.  However, even without discussion, there were things that should have been reasonable to deduce even with our limited discussion.

First, and this escaped me at the table, but makes complete sense to me in retrospect, is that I should have treated 4NT as exclusion blackwood.  Why?  If partner is going to splinter, and then ignore my attempt to signoff, he should be showing a void in diamonds.  I think I was so excited about not having to worry about the difference between 1430 and 3014 responses, I did not stop to think (and went on automatic) - a potentially dangerous thing to do,  Nonetheless, partner had an easy time interpreting my response correctly, since the only way I could have two keycards was to also have the !D A.

Second, I think partner misbid by splintering.  After Drury, he probably should want to be in slam opposite virtually any holding I have that includes a keycard.  By splintering, if I respond under the exclusion premise, I will potentially have a lot more room under my limit raise that might be useful.  In other words, in the actual auction, he could place 9 of my 10/11 HCPs, but if I respond excluding the !D A, now he can only place 3 HCPs immediately, and  then 2 more with the queen-ask, and now there would be no room for any other questions.

Third, my response over 4 !D should have been 4 !H.  I did think about this response and decided it might confuse partner.  That should not have stopped me.  The reason for possible confusion is that it could be interpreted as showing a control in hearts, but the standard expert-meaning is that is a Last-Train bid.  Last-Train bids come up when there is limited space to make a slam try.  In this case, the splinter was the slam try, and so 4 !H would simply say, given that I am a passed hand showing a limit raise, I could not have a much more perfect holding for you to proceed toward slam.  I think that KQJ of trump and a side ace fits that description.  Now if partner bids 4NT, I should be less certain that partner is showing a diamond void.

Fourth, partner asked about kings, which should be a wasted effort.  I simply do not have enough room as a passed hand to have any kings.  More useful would be the !C Q, xx in clubs, or the !H Qxx to pitch the small club.  The way to do that would be bid 6 !C, which under the circumstances asks useful holdings in clubs, and if I have something like !H Qxx, but not what is needed in clubs, I can try 6 !H to say I have something useful in the heart suit.  This is another inferential bid.  Partner has the ability to ask about aces and kings, but by bypassing the king ask to bid a new suit, has to be looking for something more in the suit bid - third round control seems about right.

There are probably more, but I will leave room for others to bring to the table.

The full hand can be found by following this link: https://www.bridgebase.com/tools/handviewer.html?lin=st||pn|yleexotee,jcreech,North,East|md|2ST82HQT92DKT3CT64,SKQJH875DA85CJ852,SHJ643DJ97642CQ93,SA976543HAKDQCAK7|sv|b|rh||ah|Board%2036|mb|P|mb|P|mb|1S|mb|P|mb|2C|an|rev%20drury|mb|P|mb|4D|an|Splinter,%20I%20hope|mb|P|mb|4S|mb|P|mb|4N!|an|RKC|mb|P|mb|5S|an|2%20with|mb|P|mb|5N|an|Specific%20kings,%20I%20suppose?|mb|P|mb|6S|an|no%20outside%20kings|mb|P|mb|P|mb|P|pc|S8|pc|SK|pc|D6|pc|S3|mc|12|

4
Sleight of Hand / Fun with bots (and a Star)
« on: September 08, 2021, 12:32:08 PM »
These are hands from a Star Challenge.  I thought they posed interesting decisions for both the South player (the star and I) and our bot partners.

Bd 1 None vul

You hold !S KT !H 32 !D J932 !C AKJ62 and it goes two passes to you.  12 HCPs and 2 spades, so only 14 Casino points; do you bid?  And if so what?

At one point, I would have opened 1 !D so that I would retain the easy rebid of 2 !C after 1 !S.  The lack of a heart stop can be of real concern, but I have come around, particularly when the choice of suits is Jxxx vs. AKJxx.  I now feel it is less of a lie to rebid the clubs or bid NT than it is to bid both minors. 

So at my table, it continued with a 1 !H overcall, 2 !H cue-bid showing club support, the heart game bid by East and I carried on to game.  Should the South hand bid or defend against 4 !H?  This is one of those gray areas where it is not entirely clear whose hand this is.  One rule of thumb says that the five-level belong to the opponents.  With partner showing a club fit, I felt we must have 9-11 clubs, and therefore most of my defense may easily disappear quickly.  To me, it felt like we have a better chance trying to make our game than trying to set theirs.  So I bid.  As it turns out, we have a 23 point sacrifice for their 17 point unbiddable slam.

The final result was a four IMP gain when the star decided to begin with 1 !D, and then the auction was identical except substituting diamonds for clubs.  The problem, though, was more luck than skill.  I only had to contend with a 4-0 trump break on a 5-4 fit; the star had a 5-0 break with a 4-4 fit.  The contract went down five tricks, compared to the two I went down.`

The full hand can be seen by clicking this link:  https://tinyurl.com/yk5cdkeu   


Bd 4  All vul

On this board, you could say that the star and I made the same bids, just in a different order.

The auction began with two passes to 1 !S, you hold !S T9 !H AK2 !D A72 !C KQJT8.  Your choices are essentially double and an overcall.  If you had a spade stop, there would be a third choice of 1NT, but with doubleton T9 it is better to remain among the mundane.  I chose to overcall.  To me, the suit was excellent, and with 3-3 in the reds, I preferred to back into those suits with a double later.  Little did I realize how the auction would progress.  West bid the spade game, and this was passed back to me.  Now I felt that 5 !C would be too unilateral, and that double would bring everything into view; my defense, that my suit was good, and I could reasonably support either red suit.

So let's now move to the other side of the table.  You hold !S 6 !H Q7654 !D Q3 !C 97532, partner has overcalled in one of your five-card suits, and suggests support for your other five-card suit, and the only defense you have are two queens.  Should you pass and defend, or bid one of your suits?  Personally, I would run to clubs where we have a 10-card or better fit; I just cannot imagine a hand where it would make more sense to pass than play when a double comes around to me.  What did the bot do?  It passed.  And the opponents wrapped up the double with an overtrick.

The star began with a double, West bid 4 !S, and this was passed back to the star.  What do you do?  Personally, I probably pass, but I can understand the decision to bid on.  The worst you can normally expect to lose is five tricks; if the opponents have a game, that is not much of a loss doubled, and they may not double having shown weakness.  Moreover, if partner has a cover card, even doubled it becomes a small potential win.  So bidding 5 !C is reasonable, even if it is not my cup of tea.  It might have been more interesting if the vulnerability had been white vs. red.  Then with many partners, I would be willing to bid 4NT saying I have at least two places to play opposite the takeout double.  That would easily get us to 5 !C, though it might draw a double, as it sounds weak.

I can't say that the overcall is definitively better than the double, but I think it will pay more dividends in the long run than the double.  It helps set the defense by providing a great lead director.  It helps keep your side from finding a 4-3 fit (whether it is right or wrong); certainly there are a lot of declarers that hate not having an eight-card fit.  And it may make it easier to find a fit-based sacrifice.


Nonetheless, it is also important to remember who is sitting across the table from you.  While a human being is unlikely to sit for the double, taking it for cooperative with takeout tolerances, the bot is much more likely to sit with a big fit and nothing to speak of in defensive values. 

A link to the full hand follows:  https://tinyurl.com/yf3rxetq


Bd 6  E-W vul

You hold !S A8 !H A2 !D K9875 !C AK74, and the auction goes one pass to you.  Too strong for 1NT and not strong enough for 2NT, you open 1 !D.  Partner raises to 2 !D, inverted, showing 10+ with diamond support.  West jump overcalls with 3 !S, and it is now your bid again.  Your room to explore has suddenly disappeared, what do you bid? 

Personally, I would love to pass if I was certain that partner would treat that as forcing.  It has the potential to obtain the most information about partner's hand while conserving the most space.  But, would the bot pass 3 !S?  The middle of an auction is not the time to experiment. 

With great controls and partner raising my five-card suit that could have been as short as three are pluses.  We are looking at a minimum of 29 HCPs a nine-card fit and  first-round control of all of the side suits.  The question is how much of partner's hand is wasted in the trump suit, and how much might be useful cover cards in the other suits.  The problem is, you really only have RKC available, and it is of limited usefulness. 

To buy time let's say you bid 4NT and partner responds 5 !D, showing 1 or four keycards.  Now what?  5 !H would ask about the queen and responses could tell you about the first-held king.  But what does that tell you?  The queen is actually a bad value if you have a 5-5 fit, because it is not helping in a side suit.  Ideally, you would like to see both major-suit kings, the diamond ace and either the club queen or a doubleton club.  Is there a way to ask all of that?  No!  So at some point you have to guess where to place the contract.

I decided to play partner for a minimum with substantial wastage in the diamond suit.  I made this decision partly on the fact that East bounced in red at the three-level, so I felt there should be some values outstanding to take that risk - that turned out to be a faulty assumption.  Partly on the fact that partner should have 4-6 diamonds, and that increased the chances that a substantial portion of the hand was in the diamond suit - which turned out to be a good assumption.  And partly on the fact that I needed five cover cards for a grand slam - that seemed a bit much, but if I make a slam move, and partner has that sort of hand, there should be no way we stop short of the grand -  this may not have been a fully thought-out assumption, that is, I may need to ask about the queen to get partner to feel certain that we have all of the keycards.

Anyway, I chose to bid six, while the star chose to bid seven.  I happened to be right, and the star wrong, but it could have easily be reversed.  Swap the red queens (keeping the jacks), I would have liked my chances until East did not really have it's bid.

The full hand can be seen by clicking on this link:  https://tinyurl.com/yf9p4n9t

5
The IAC Café / Help needed with Data Mining
« on: September 23, 2020, 01:27:08 AM »
Richard Willey is looking for participants to provide bidding data for a data mining project.  The link is:
https://bridgewinners.com/article/view/help-needed-with-data-mining-project/ and a description of what he is trying to do follows.  To me, it sounded like an interesting project, so I have provided my bidding responses.  In order to participate, you probably will have to register with Bridge Winners, but registration is free (though they do seek donations in another portion of the web site).

Richard welcomes ALL levels of players to participate.

"I am attempting to train a classifier that can sort bridge players into one of a small number of distinct sets based on how they answer 5-10 bidding questions.

My hope / belief is that players on online bridge sites might be able to use this sort of algorithm to identify other players that they might be compatible with. (Or, if nothing else, people might find this amusing.)

In order to do this, I need a dataset that I can play with. At a high level, I need to determine:

Can sort players into a useful number of sets?
Does set membership remain stable if I make small permutations in the questions being used?
Can I create an accurate classifier that only uses a small subset of the questions?
And, for this, I need a bunch of data…

I am hoping that folks here on Bridge Winners might be willing to lend a hand by answering 50 or so bidding questions and sending me the answers. If you are willing to participate, please answer the bidding problems on the next page. Ideally, I’d like to get 100 or so people to take part.

(If you are willing to participate, could you please reply to this post with your name? It will be useful to see how many arms that I need to twist in order to get enough participants.)

Regretfully, this is an “all or nothing” type situation. The clustering algorithms that I am working with need a complete dataset to be able to process the data. So if you don’t answer all 50 questions, none of your answers count. Note: It’s fine to answer “abstain” to individual questions if you have a serious objection, but please do this as a deliberate protest regarding the bidding decision and not because you don’t have time to think about stuff.

All of these questions were taken from past issues of The Bridge World. When you answer, please presume that you are playing Bridge World Standard. Jeff Rubens and The Bridge World were gracious enough provide permission for these problems to be used and posted here on Bridge Winners. I’m very thankful for their support. If anyone would like to show their appreciation, they can always use new subscribers. (Plus, it’s a good magazine. There’s a reason that I’m using their questions.)

Special thanks to Cam French and David Levin for helping to select hands!

FWIW, this is a completely “open” project, by which I mean I will publish:

The data set
The code that I am using to generate results
The trained classifier
Anyone who is interested in using / adopting the techniques is more than welcome to do so. (My suspicion is that whatever comes from this project might need to be extended. For example, if the ACBL want to adopt something like this for their own online partnership desk, they might want to create their own set of questions based on some other bidding system and train a different classifier that would be more useful for their player base.)

For anyone taking the quiz, please feel free to send me your answers either via a private message here on BW.

All that I need is data in a format like the following:

Q1. 7N
Q2. 3D
The following is very important:

If you are entering a bid, please code it using a number and a letter so:
One Diamond would be listed as "1D"
One No Trump as "3N"
If you are choosing to double or redouble please represent this as X or XX.
If you are choosing to pass, please type "Pass".
If you are choosing to abstain, please type "Abstain".
Thanks!"

6
Sleight of Hand / A Flannery inference
« on: April 27, 2020, 04:16:35 PM »
In my mentoring sessions I talk about understandings and keeping on the same page.  I do not often play Flannery, but I do have some partnerships where the other player feels quite strongly about using the convention.  Here is a hand where I think I have the correct perspective on what my rebid means, but my partner clearly felt otherwise.

All red and the auction goes P - P - 1 !H - 2 !D; X (negative)- P - ? and you hold:
 !S 9853  !H AKQJ62  !D K7  !C A

Our agreements about Flannery include that it is permissible to open with a 6 card heart suit, the range is 11-15 and that if responder to Flannery bids 1 !S, it shows five or more spades.

Given those understandings, I argue that 2 !S is clearly shows 16 or more HCPs.  If I had less, I would have opened Flannery.  If I had a minimum with only 3 spades, I am more likely to rebid hearts, clubs or NT depending on the nature of my hand.

Now I also put this up as a bidding problem on Bridge Winners.  Clearly, my thinking is not the thinking of the players that have responded so far.  By and large, those responding to the poll think the appropriate rebid is 4 !H (73%).  Although some of the rationale has to be to right side this hand and protect the  !D K, but since partner made a negative double, you are doing that by bidding spades (so that would be short-sighted thinking).  I also think that a 4 !H call is a very unilateral bid - it accurately describes the quality of the heart suit but does not take into consideration that partner is stiff or void in the suit and totally disregards the secondary fit that partner has just made known.  This is a partnership game, and if you are going to bid like this, why not play with a robot or open 4 !H to start with.

The next poll choice was 3 !S (20%), so again, these are people who are not using the inference that I did not open 2 !D (Flannery). 

Granted, how bids in a system work together and the inferences are not the things that a lot of players think about, but it is something I try to do whenever I am trying out a new convention, or working back in an old convention that I haven't used for a while.

Am I off base on my thinking here?  I would hate to think that this is just a pointless rant.

The link to the full hand is here (you will have to copy and paste into a browser - otherwise you will see a blank hand):
https://www.bridgebase.com/tools/handviewer.html?lin=st||pn|South,West,North,East|md|1SKQJTHT7D32CK7654,S62H9843DJT54CJ98,S9853HAKQJ62DK7CA,SA74H5DAQ986CQT32|sv|b|rh||ah|Board%207|mb|P|mb|P|mb|1H|mb|2D|mb|D!|an|responsive|mb|P|mb|2S|mb|P|mb|P|mb|P|pc|H5|pc|H7|pc|H8|pc|HA|pc|CA|pc|C2|pc|C4|pc|C8|pc|S3|pc|SA|pc|SK|pc|S2|pc|C3|pc|CK|pc|C9|pc|D7|pc|SQ|pc|S6|pc|S5|pc|S4|mc|11|

7
I know that some have strong feelings about goulash hands and tournaments, so I am hopeful for a lively discussion.

Goulash can be a good exercise for normal bridge, but it takes both pairs at the table approaching the hands as if it were normal bridge.

Think of it like any other specialized exercise to help a player learn a technique (e.g., identifying the danger hand and how to play to neutralize the danger, identifying endplay potential and execution to achieve the endpaly).

Both pairs have to approach the hand as a normal bridge situation, then once one side has begun preemptive actions, then both sides can practice their ability to judge, their competitive bidding skills and their defensive understandings to deal with abnormal hands.

Once either pair approaches the opening with specialized methods, they are purely catering to the less than 10% of all hands that goulash hands represent and the value to improving normal bridge skills is lost.

8
Sleight of Hand / Can you get to the grand?
« on: March 23, 2020, 04:26:04 PM »
I was a kibitzer on this hand.

Vul N-S
Dlr E
                   !S AKQ9862
                   !H A94
                   !D 6
                   !C 72

!S T3                               !S J4
!H JT873                          !H 2
!D QT92                           !D K875
!C 95                               !C KJ8643

                   !S 75
                   !H KQ65
                   !D AJ43
                   !C AQT

At one table, I do not think there is any way to get to the grand.  E-W were silent and the auction went 1NT-2 !H (trans); 2 !S-6 !S.  North may have been concerned that 4NT would be treated as quantitative, but even with all RKC agreements fully understood, a critical piece of information was missing; where might the 12th and 13th tricks coming from.  You might be willing to gamble that partner has something that will turn into number 12, but not all the way to 13, so the jump to 6 !S is not at all unreasonable.

But at the other table, there was more information.  East opened 3 !C and South overcalled 3NT.  Now what do you do with the North hand?  Again, it is important to be on the same page with ace asking agreements.  North tried 4 !C (described as Gerber), South responded 4 !H (described as hoping partner is asking about majors) - oops, it doesn't sound like they are in sync here.

In my more well-discussed partnerships, I don't really have the ability to directly ask for aces.  4 !C is Stayman and 4NT is quantitative.  If I were to use Stayman and get 4 !H as the response,  I might be inclined to try RKC at that point.  Two with the Q in hearts gets mt to certain 12 tricks with at least two possibilites for a 13th, would be worth bidding 6 !S or 6NT (both of which are now right-sided from partner's side).

9
Sleight of Hand / Neat squeeze
« on: February 14, 2020, 01:53:40 PM »
Vul E-W
Dlr S
                   !S 98
                   !H 8652
                   !D KT
                   !C AK765

!S QT6                             !S 754
!H QJ93                            !H 74
!D 654                              !D 98732
!C 983                              !C QJ2

                   !S AKJ32
                   !H AKT
                   !D AQJ
                   !C T4

2 !C - 2 !D   strong/artificial  - waiting
2NT - 3 !C    bal 23-24  - Puppet Stayman
3 !S - 6NT    5 spades   -  lets see you make this

This came up in a Spur Team Match yesterday, and I knew if my opponent cashed the diamonds in their hand before running the clubs, I was squeezed.  But I went back and looked at the hand harder and realized that if declarer had guessed the layout at trick two, I could be squeezed to make the contract.

Before I get into the play, I want to say that unless you are specifically looking for a squeeze, I don't think the line that works will be looked for.  In my mind, it makes more sense to duck a club, hook a spade and play both suits to break 3-3 than to play for the squeeze explicitly. 

That said, I avoided any of the leads that allows the contract to make on the go.  Almost as a perverse BBO sense of humor, I was dealt the QJ93 of hearts, and the auction suggested heart length in dummy, similar to Problem H in last month's MSC.  I decided that I would not go for the 10 (out of 100) Q lead, but was not happy to try the 3 either.  So I went for a short suit lead of the !C 9.  This was ducked to partner's J.  A club back at this point is the only killing defense; breaking the squeeze.  Partner led a heart.

If declarer now cashes one spade, the red suit winners and play off the clubs (pitching the !H T and two spades, I am toast.  With me to play on the last club, the position is as follows:

                   !S 9
                   !H 8
                   !D
                   !C

!S QT                              !S 75
!H Q                                !H
!D                                    !D
!C                                    !C

                   !S KJ
                   !H
                   !D
                   !C

The best I can do is pitch a spade smoothly and hope declarer still finesses.  Hopefully, I spotted the problem early and pitched the spade early, so it might not look so difficult for me to pitch a heart.

I mentioned cashing a spade for the off chance that the !S Q was singleton.

10
Sleight of Hand / Survivor hand
« on: January 29, 2020, 05:24:42 PM »
Vul Both
Dlr S
                   !S J3
                   !H KQ542
                   !D T9875
                   !C 2

!S 98765                          !S K2
!H A93                             !H T76
!D Q6                               !D KJ4
!C T87                             !C QJ643

                   !S AQT4
                   !H J8
                   !D A32
                   !C AK95

1 !C - 1 !H
2NT - 3 !D (no description, I assumed New Minor Forcing, but looking at hand it coculd be either natural or NMF)
3 !S - 3NT (3 !S described as denying 3 herts)
P

If you look at GIB before the opening lead, there is no lead that allows this hand to make.  My opponent led the !D Q, I let it hold, now GOB says only a small heart will defeat the contract.

How things change so quickly!  What would you shift to?  I think that when faced with a diamond suit that could be set up, I would want to attack entries to that suit.  So I would shift to a heart.  Which heart?  I think it is clear to lead a small heart with plans to take the second heart.  Why?  Well, in part because declarer announced fewer than 3 hearts.  But there is another reason; if declarer lied and has three hearts, there is no way to defeat this contract.

I got lucky and LHO shifted to the !S 9; even though RHO ducked the king, I need that card with RHO.  As declarer, along with the !S K, I need the diamonds to break 3-2, and if they do, I have 9 tricks with hearts as my entry - I just have to be willing to overtake the jack.  3 spades, 1 heart, 3 diamonds and 2 clubs.  This was the path I took.

Now the result was reasonable for the event 66.7%, but given the difficulty, I was hoping for more.  So what beat me?  Four players found their way into the 5-2 heart fit, making 4 or 5 depending on the defense, but one was in 3NT making six.  How did that defense go?  It started with the !S 9, ducked in dummy and up went the K, won by declarer.  Declarer shifted to the !H J, up went the ace and lets shift to a club.  Now declarer tried the hearts while there was still a spade entry.  They worked, so cash the !S J, pitching all small cards except the !C 9.  Meanwhile RHO is pseudo squeezed and guesses wrong at the end.  On this defense, declarer is always getting a top by making either 5 or 6 depending on RHO's last pitch.

11
IAC Tourneys / What is partner showing?
« on: January 17, 2020, 03:00:55 AM »
This came up yesterday in a swiss-movement pairs earlier today.  You hold with everyone vul and partner opens:

 !S AQ9
 !H J94
 !D T632
 !C K97

The auction has gone:
 1 !D   P    1NT  2 !D      2 !D is alerted as showing both majors
 3 !C  P     3 !D  3 !S
 3NT   P      ?

What is your next call?  What do you know of partner's hand?

12
IAC Tourneys / Would you want to be in this slam?
« on: January 14, 2020, 10:47:27 PM »
This hand rotated came up in yesterday's Survivor tourney (Dlr: S, Vul: Both):

 !S KQT2
 !H Q876
 !D AQ7
 !C 97


 !S
 !H AT53
 !D 83
 !C AKQT432
1 !C     2 !S      X        P
3 !H       P       4 !H     P
6 !H       P                        (X was negative showing hearts)

The first question, is would you want to be in this slam?

The second question is, how would you play this in slam?  The lead was the !S A.

13
IAC Tourneys / Did I err? (A technical question)
« on: January 14, 2020, 09:39:06 PM »
This hand came up in yesterday's Survivor tourney (Dlr: N, Vul: N-S):

 !S K864
 !H A4
 !D Q94
 !C QJ93


 !S A3
 !H K62
 !D AJ32
 !C T764

1 !C   P      1 !D   1 !H
X       P       3NT     P
P       P                      (where X is a support double showing 3  !D's

The defense started the  !S 5.  Normally I would duck, but with a known five-card suit on my left, I was not anxious to let them start what they failed to begin. 

So I won the lead in hand (to give me a chance to duck later if the suit was continued).  At this point I have five sure tricks and neither diamonds or clubs will give me everything I need.  If LHO has two outside entries, the opening lead was a serious mistake.

I do not want to burn an entry to dummy to take the diamond finesse, so I decided to lead a club.  RHO won and returned the !H T, and when that was allowed to hold, continued the suit.  I won, perforce, and now took the diamond finesse, which lost.

LHO now led the  !H Q, again won perforce, and I shifted back to the club.  RHO won and shifted back to the spade.  When LHO's T was winning, I took my K, cashed a top club (LHO pitched a diamond), so now I could claim the rest.

My partner congratulated me, but then said that playing on diamonds at trick two seemed more correct to him.  I would agree if the defense started hearts, but they attacked spades first.  My line worked, but this is a partner I value the opinion of; is he correct?

BTW the only other declarer to make this hand did get a heart lead, winning the second trick in dummy to take the diamond finesse.  WD on his part.

14
Sleight of Hand / Combining chances
« on: December 29, 2019, 04:08:33 PM »
I was on defense on this hand, and was guilty of putting declarer a less than desirable position.  The auction at the other table was 1 !S - 2 !C - 4 !S - All pass, so declarer did not have to think much about how to play the hand. 

At our table, as East, I bid 5 !C and South carried on to 5 !S.  Now you have to think about how to avoid a third loser. 

 !S T6543
 !H AT87
 !D 6
 !C 965


 !S AQJ72
 !H KJ4
 !D K8752
 !C -

Lead: !C A

This is a hand where chances can be combined. 

1.  There is a two-way finesse in hearts, as well as play for Qx.
2.  You can either finesse the !S K or play for the drop.
3.  You can play for the !D A to be onside and the suit to break 4-3 or you can play for the Axx on either side (ducking the first trick completely).

In many ways this is a challenge for Ken - to identify the best combination of chances - but it is a challenge for others to select the best combination with essentially only the tools you would have at the table to select a line.

I will go first, and try to remain objective despite having seen the full hand.

My plan would revolve around a line where a specific player has at least one of the three critical cards.

If I were to play West (the overcaller) for at least one of the three cards, then:
1.  after winning the lead, I would lay down the !S A, hoping for the stiff K;
2. if that did not work, then I  would duck a diamond, planning to ruff out Axx in West - if trump broke 3-0, then I would use trump as transportation;
3. if that did not work, then I would play the !H K, then finesse the Q.

If I were to play East for at least one of the three cards, then:
1. after winning the lead, I would cross to dummy with the !H A to finesse in trump;
2. if that did not work, then I would cross to dummy to lead a diamond toward the K, then ruff two diamonds - using the K and the fifth diamonds for heart pitches;
3. if that did not work, then I would cross to dummy once more to finesse the Q.

I think the percentages work better for playing East for at least one critical honor, but I think that the overcall increases the chances that West actually has at least one of the critical honors, but will it really matter unless it includes at least one of the following:
1. stiff !S K on either side
2. !D Axx on either side
3. !H Q

So even though I think that West is more likely to have all three missing honors, I feel like the percentage are with playing East for at least one.

What are your thoughts? 

(And Ken, I would at least know which of my two lines is better, as well as what line is best.  Thank you.)

15
Sleight of Hand / Would you double and what is your lead?
« on: November 26, 2019, 01:40:28 PM »
This hand came up in side table in IAC recently.  It was the hand that doubled and was on lead. No one is vul.

!S A72
!H K95
!D T863
!C T64

  P -   1 !H - 1 !S - 2 !H
2 !S - 3 !H -  P   -   P
3 !S  - P    -   P    -   X
  P  -   P   -    P

At IMPs, I am very careful about doubling someone into game.  I like to be certain that the contract is going down two under normal circumstances, so that I will be unlikely to have a surprise make.  So I would not have made this double.  But if someone is willing, I would like to know their reasoning.  To me, this is a matchpoint double (protecting a partscore) not an IMP double.

If I do double, I want to have a clear idea of what my lead will be.  I am not certain that this hand has a clear lead on the auction, but I do have a lead in mind.  At the table, I would not know whether the lead would be successful until after the hand is completed.  Since I know, I will not share for a few days - as I share the rest of the hand.

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