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Messages - kenberg

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1291
Sleight of Hand / USA2
« on: May 11, 2017, 02:48:03 PM »
oops oops and oops. I originally posted the wrong link, I will leave it be and also post the right one!

Thw wrong one:
http://tinyurl.com/ldbflpl


The right one:
http://tinyurl.com/mn2nt8k


My comment that was directed at what I now call "the right one""
Maybe Moss should have got this right, maybe not, but it's of interest to see that the forced ruff at trick 2 made it more difficult for him.  As mentioned, time is tight for the next several days so I'll leave it at that.

As to "the wrong one":   See "Challenging hand". I cleaned up the exposition there a bit.

1292
Sleight of Hand / Re: challenging hand
« on: May 10, 2017, 11:51:17 AM »
The next two weeks or so are going to be busy for me as well. I'll gt back to this, I really do like the idea, but there will be a gap. Who knows, maybe someone will fill it.

1293
Sleight of Hand / Re: challenging hand
« on: May 09, 2017, 12:30:38 AM »
On this hand, I believe the thinking should go as follows:

There are two ways for declarer to take 10 tricks. Make use of dummy's clubs, or else just take 2 club tricks. If he takes only two clubs he needs 8 more. The hear Ace and the diamond K are 2 of them. Where are the other 6? Three ruffs in dummy, 3 trumps in hand. So that gives two possible ways he can make ten tricks, we have to block both. I think it can be done. Or more precisely, GIB says it can be done and I think I see how.

Mostly I find thinking about such things to be fun.  Something like this requires far more time than would ever be allowed, and I am looking at all four hands,  but it is a demonstration that thought can help. In simpler situations thought can also help, and with practice maybe it can on some hands be done in a reasonable length of time.

On the shown hand, I think E can beat it as follows: Take the heart K at T1 as he did, and shift to either the J or 9 of Ds. This much Gib shows.
Declarer must win, else he loses two diamonds, the heart and a spade.

So declarer wins the diamond K. Playing three rounds  of trump won't work, since E will win the third round and they take some Ds, three in fact. So suppose S wins the diamond K and plays a diamond. E wins the diamond and plays a heart, N wins the A. If declarer tries for three ruffs it won't work: Club to Q, ruff a heart, club to J, ruff a diamond, now declarer is on the board. He still has a red loser in his hand, but he cannot pitch it on a high club because W will ruff. He also cannot ruff back to his hand with the spade 4 because W will over ruff. So he ruffs high back to his hand and then ruffs his remaining loser on the board as E pitches a heart. Everyone has three cards. S has KQ4 in spades, E has  A87. A club is led from the board, E trumps low, E gets two spade tricks. 

Ok, maybe after S wins the diamond K he leads a heart to the board and then comes off the board with a diamond. E goes up and leads a small spade. This kills the possibility of three ruffs, and I see no way for him to cope.

So I think the diamond play at T2 does it.  I have not gone through every variant in detail, but it seems clear that to come to  ten tricks he either needs three clubs, and the third club  cannot be played before spades are drawn, or he needs two clubs, a heart, a diamond and six spades. With that in mind, I think any approach he tries can be countered.

All it takes is a half hour or so of thought while looking at all four hands!


There are many such hands. The reason I thought the IAC forum would be good for this is that we all, to some extent, know each other. So I thought it could be more relaxed. One could just put something up that might be of interest.

Added: An early thought was that after the D switch, if declarer went up (as he must) and then played another diamond, winning and then playing a small spade would be right. Declarer can cope with this if he reads the situation. He wins in hand, ruffs a D, which leaves E with no Ds. Declarer then leads a spade. He intends to draw trump and run clubs, and the defense cannot stop him from doing so. When E takes his Ace he has no more diamonds to lead, the heart Ace is still on the board, and declarer has adequate transportation via clubs.

Also, if you look at the play as it actually went, the possible result switched back and forth a couple of times. E won the heart . Now declarer can make it: lead a spade to his hand, ruff a heart, lead another spade. Thanks to the 3-3 split and the onside D ace, declarer will be able to draw trump and run clubs. But declarer did not do this, at trick 3 he led a D from the board. Now we are back to where the hand can be beaten.

It is often like this. Players make their best estimates of how the cards lie and what will work. Even the best players cannot see around corners, and so Gib, who peeks, can see that the possible outcome shifts back and forth.

 

1294
Sleight of Hand / challenging hand
« on: May 08, 2017, 02:31:31 PM »
This came from the usbc finals


http://tinyurl.com/ldbflpl



Clearly 5C and 3NT would both fail on a heart lead. Not surprisingly, the result in the other room was a club part score. The 4S contract here takes a bit of luck. But spades are 3-3 and the diamond Ace is onside, so maybe it comes in. It did. I can imagine Brian Platnick having a sleepless night or two trying to see if he should have found the winning defense.

I am not crazy, I don't think Brian will be seeking my advice. I want to see if one line of thought strikes anyone as plausible:
If declarer has five spades, this might well be hopeless so give him a strong four card holding such as he has. This means partner has three spades. This could be useful in keeping declarer from making use of his clubs since partner could ruff the third round. That's providing we keep declarer from drawing trump. It's a bit tricky, but it seems we can do this. As Gib says, we switch to a D, the J or  the 9, at trick 2. But there is still some serious thinking to be done. I think I see it.

Bridge is an interesting game. 4S is a pretty bad contract when just looking at the NS cards. But it's the only game contract with a shot, and it came in.

Comment: Judging from the lack of participation in the sleight of hand forum I gather I am about the only nut that finds such things interesting. But I do. Oliver, I thought it a really good idea. 

Curls suggests below that I continue posting, and probably I will, but I really think that if all this forum generates is a bunch of posts by me then we are passing up an opportunity. I am a strong believer in conversation.


1295
Sleight of Hand / Excitement!
« on: May 07, 2017, 03:35:01 PM »
This hand was board 2 on Sunday in the USBC. (Finals, round 5). Given the very different contracts, it's got to be amazing that the swing was one imp.


http://tinyurl.com/mu6xzlu


http://tinyurl.com/kq4hhcv

The play and defense is delicate.

1296
Sleight of Hand / A hand from the USBC
« on: May 04, 2017, 07:44:17 PM »
  The hand below came up in the round of 16 in the USBC. All tema play the same hands so this was played 8 times with a variety of results.   In many ways it's an everyday hand, so I thought people might like to imagine how it might go when playing in IAC with their favorite partner.

I imagine E and S pass, but how about W? Some bid 1S, some not. Some waited and came in artificially after N bid 1NT followed by two passes. This had the effect of making E the declarer in 2S. At some tables there were 3 passes, a bid of 1NT, and 3 more passes.   

At one table W bid a third seat 1S, N bid 1NT, and E, apparently thinking his partner actually had something, doubled 1NT and then led a spade.  N won, dropped the singleton K of hearts, went to the board and finessed the spade to establish 8 tricks in 1NTX. But he then got greedy and took the D finesse so he ended up with only 7 tricks. Still a good result of course .

There were various comments on the vugraph show at the various tables. It's amusing that NS have a heart fit and EW have a club fit, but it was never played in either hearts or clubs.    I don't think EW would do well in clubs. NS might do ok in hearts, as long as they stay out of 4. At the table I watched they broke even: 1NT +90 for NS at one table, 2S off 1, +100 for NS at the other. Yes, NS can take the first 7 tricks against 2S, but they didn't.
At another table, N played 1NT, E led a diamond at trick 1, N was (for the moment) grateful  to be on the board, and ran a heart losing to the stiff K.

There have been many great hands, of course. It was interesting here to see the variety of approaches on the same hand.


E deals, EW vul
  AKT
AT92
AJ43
74

QJ862
8643
2
AQ5


75
K
KT865
KT862
 
943 
QJ75
Q97
J63


1297
The IAC Café / Re: IAC where are you?
« on: May 01, 2017, 09:46:04 PM »
Bridge takes various forms. Yesterday yleexotee and I played maybe 16 hands, some  against helene_t and shatha, some against helene and dee10.

Now for me, this is bridge in the way I first learned it back in my grad student days. Four people got together, pulled out a deck of cards, and played for a while. A while means for a while. After a wile life got busy and I stopped playing altogether. Then, in my late thirties, I started playing at clubs and in tournaments.

What do people now like? It's hard to know if they don't say. I enjoyed the four person pick-up game. I couldn't make last light's tournament, we were at a Lynyrd Skynyrd concert. (I'm probably more the Pete Seeger type, or Duke Ellington if he could be re-incarnated, but Becky says she wants Free Bird played at her funeral.)

Anyway, I just enjoy playing some hands. When I was young I played Uncle Wiggly, Chinese Checkers, various rummy games. Later I played canasta, hearts and poker. Later I played bridge.  Playing bridge in an environment where I get to know people, even if only in an  internet sort of way, seems like a nice idea.

But if people are not interested, I have no good ideas on that.

1298
IAC Matters / Re: Why IAC
« on: April 30, 2017, 01:39:10 AM »
There was a time when I traveled to tournaments. With that level of commitment, it made sense to develop a lot of understandings, many conventional. With a lesser level of commitment, I am less sure.

Yesterday I played at a club with my (more or less) weekly partner, we do not play 2/1.  As near as I can recall, the fact that we were not playing 2/1 did not affect the result on any of the 24 boards.  He also does not play Drury.  I like Drury very much, but not playing Drury paid off here. I opened a fourth hand 1S, he bid a natural 2C and with a fit for his clubs and a strong spade suit I went directly to 4S.  They did not find the right lead and with my spades and his clubs I took 13 tricks. Some luck was involved. We usually do well, this time we did badly for a variety of reasons, but none of those reasons would have been fixed by a convention.

Miscommunication is rampant. I always agree to play DONT but if there is not time to discuss it I simply hope that (1NT)-2C-(X) doesn't arise. It did arise with this f2f partner, we do play DONT, and we have discussed this. After the X the way to get partner to run is to XX, a call of 2D is natural. Larry Cohen agrees.  If two DONT players have not discussed this, I would say there is a fine chance that the 2D bid over the X will be misunderstood, either intended by one as asking for a run and taken by the other as natural, or the other way around. As it happened on this one, I had clubs so no run was needed but if my stiff spade and my four clubs were, instead, a stiff club and four spades I would XX. partner would bid spades.  With long diamonds I bid 2D over the X and partner will pass.


So my  objection to conventions is really an objection to agreeing to a convention without adequate discussion.

Added: I just looked up how that 4S making 7 scored. Not well. I have Kx of hearts and the A is on my left .We can make 6NT as long as the spades come in. I have AKTxxx and partner has the stiff Q. They come in. Nobody is in six ov anything, but 3NT makes 7 unless the heart ace is led at trick 1. Oh well.

1299
IAC Matters / Why IAC
« on: April 29, 2017, 09:24:13 PM »
I read Sally's post and figured I would put up my thoughts.

Online play is iffy. Here are two extremes;
1. You play with a fully worked out system that the two of you have discussed at length. I have played that way (well maybe not thoroughly worked out but in general terms yes) in f2f but online I find the distance to be an issue.
2. Just play whatever with whomever. Ok, but it lacks something.

I was thinking IAC might work well, sort of a middle road. People get to know one another so that they have a reasonable idea of what each other's bids mean.

Sally mentioned that she is not up for precision or for the weak no trump and the same goes for me. I have played, briefly and a long time ago, the weak no trump. I have no quarrel with it, I just am not interested. I have never played a big club system. Too artificial for me. I just wouldn't enjoy it. Actually I find the play far more interesting than the bidding anyway, and so I prefer reasonably natural bidding. Supposedly a man came up to Charles Goren a long time ago and said "I agree with you Mr. Goren. When a man bids clubs a man ought to have clubs, as God intended."  Religious authority aside, I am in general agreement with the sentiment.

I am fine with negative doubles, support doubles and for that matter more exotic things such as snapdragon doubles. If agreed though, if agreed.  Competitive auctions need agreements, some of them artificial. But I see a lot of hands get tangled up  in artificial sequences where the partners have differing ideas of what means what, so my preference is to keep it simple and use the energy saved for the play.

So I was and am hoping for a place where  we often rely more on our judgment, rather less on exotic conventional agreements.  Then play the hands as best we can.  Later maybe more complexity can be introduced.












1300
The IAC Café / Re: IAC where are you?
« on: April 26, 2017, 10:41:01 AM »
I had heard Burns' Law if Total Trump, that the declaring side should have more trump than the defending side. It is often cited by vugraph commentators. I really  like his third law about placing the suits in the dummy so that declarer remembers he is playing in no trump.

About LOTT he says " the total number of tricks taken by anyone almost never equals the total number available to them" which reminded me of something from Bridge in the Menagerie. Someone, maybe Oscar the Owl, gives the Hideous Hog a hand and asks him how he would play to make the hand against best defense. HH snorts and says something like "Who cares how to make the hand against best dense? The hand should be played so as to make it difficult for the defenders to find the best defense.".

As often noted, bridge is a game of mistakes. I was on defense  at Dave's lesson yesterday. Declarer played a small diamond from the board intending to ruff with a small heart. I hopped up with the heart King from Kx, hoping to promote a trump in partner's hand. Indeed it did, since partner had four hearts headed by the nine (I knew he had four trump). But upon reflection I am pretty sure that the play was wrong. I usually save hands, but this one I didn't so I can't look back. While I recall much of the hand, for example I believe my shape was  4=2=2=5, I don't remember enough of the details to think it through.

I mention this because I strongly believe that this is the way to learn. Yes,  it can be useful for someone else to point out an error. But finding your own errors is far, far, more instructive. Usually errors are not all that difficult to find, once a person decides that finding his own errors is more important than finding his partner's errors. After all your own errors are the ones you can do something about in the future.  Ok, end of moralizing. 


1301
The IAC Café / Re: IAC where are you?
« on: April 25, 2017, 02:34:20 PM »
Why, and what can be done, are related questions. I am not sure I know the answer.

Possibly I had some role in encouraging Joe, (yleexotee) to write up his sheet of suggested defaults for play. I am sure it took time, i don't see that it is much used. Perhaps Oliver's creation of this Forum was partly motivated by a suggestion I made. Oliver described it as easy enough to do, but still it took some time. We can see how little it is being used. So what's up?

I play bridge because I find it interesting. This interest spills over into enjoying discussion of hands. Not everyone does. When I first started playing duplicate I took a series of lessons on conventions, lebensohl and such. There would be a lecture and then supervised play. There was this one woman who, when we first started and also as the several weeks of lessons came to an end, would begin the supervised play by asking "Partner, do you ay the short club?".  That was it. Leb? Not a chance. Why she took lessons escaped me.

So I had in mind some discussion. Not happening.

Here is the first board from the Sunday tourney:

http://tinyurl.com/k9z8gss


We agreed to use Joe's notes (with exceptions) so 3D was understood as Bergen despite the double. Myself, I would have bid a direct 3H (and I would do the same if we were not playing Bergen since after the X it is weak). But whichever ne chooses, we have a ten card fit and it is hard to imagine us not going to 3H one way or another.


Is this a good contract? That's where it gets interesting. I have five obvious tricks to lose. The opening lead was the spade T, I took my Ace. Surely I shouold have played the diamond J at T2. Maybe lho will duck, maybe he won't, but he might. Instead i led a heart after which they took their clubs. later their diamond and a spade. I long ago accepted that I make mistakes, and I actually take satisfaction in spotting them afterward. This was an error. It might not have made a difference, but it was still ab error.

There are other interesting points. This was mps and  optimal  spot for NS is 4D (or 4C for that matter). They can take five clubs, four diamonds and one heart, and there is nothing we ca do about it, at least I do not see any defense. And +130 outscore +50, and outscores +100 in 3HX. Now 4m, when it is right, is usually tough to get to and nobody did. Some were in 5C off 1.

How about LOTT? We have ten hearts, they have none diamonds, LOTT says there are 19 total tricks We can take 8 tricks in hearts, they can take ten tricks in diamonds, LOTT is off by 1. LOTT often is a bit off, and anyway they don't know we have ten hearts, we don't know they have nine diamonds. I regard the L part of LOTT (Law) as being a serious overstatement.

It score badly. Which is very different from saying one of us should have done something different. Except I should have led the diamond at T2.

I find such things interesting. Clearly, many others don't find this interesting.  If people are not interested, they are not interested. My wife has a friend who loves watching golf on television. I pass.

I don't like speedballs at all. Bridge is based on thought. It's not chess or go, but still some modest amount of time for thought is expected. By me.

Also I was hoping Joe's notes would reduce the frequency of misunderstandings.
 An auction:


1H-(2C)-2S-(P)
P-(P).

I was the spade bidder, with a 15 count and five spades. I am aware of the Negative Free Bid convention, but it is a convention. An alertable convention, at least in acbl land. Apparently more common in Europe, see http://bridgewinners.com/article/view/negative-freebids/

As it happened, the  result was not all that bad, although both 3NT and 4H can be made.  Good karma, I guess. Whatever one thinks of the merits of Negative Free Bids, clearly it is not good when one partner is playing them and the other isn't. The link above has other links, and discusses variations. It also mentions that NFBs work best within a big club system where the opening bid. not 1C,  is limited to 15 highs.

So discussion is good.  Or at least I like it. I think I will put up a few more hands from time to time, maybe it will catch on. Or not. We will see.


1302
The IAC Café / Re: audio and caution
« on: April 24, 2017, 12:27:13 PM »
My thinking was not that we could reach 5D but rather that a bid of 2D on something like KQTxxx and and maybe an outside Kx or QJx would serve the same purpose as bidding 2D with that hand when a std am player on my right opens 1C. It interferes some with their auction, and suggests that in a part score battle we may want to contest the auction to 3D.

But I agree that it is a matter of frequency, starting with the obvious: Just how often do I hold a hand such as I describe and hear my rho open 1D, Precision? If the answer is about as often as we see seventeen year locusts, then probably this would not be a good idea. I expect that whenever I do hold such a hand, it's a pretty good bet that my rho has opened on short diamonds.

I would very much like to have a place for discussion of defense against Precision. I made a number of errors in the Sunday tourney last night but there as one where I think my interpretation is normal: On my left there is a Precision 1C, then 1D on my right, and 1NT on my left alerted as 16-18. Now partner came in with 2C. We are (well, I think we are) playing DONT over a strong  1NT opening and this seems to be pretty much a strong 1NT opening so I figured that whatever we were playing over strong NT openings applied here. It was not so intended. We landed on our feet anyway, but this is the sort of thing that could be discussed.

You have a place for Precision, or more generally big club, discussion but I was reluctant to bring up defenses to big clubs there.

One of my errors (nothing to do with Precision): 2H(weak)-2NT(Ogust)-3S(good hand good suit)-4S-? I was the 2H opener, I had seven hearts (red against white, suit of KQxxxxx) with a stiff spade. Who cares what I have? I needed to pass. I didn't. Yes, partner might have started with 2S (forcing over 2H) but upon reflection I think what he did was fine. He wants to play in spades, he bids Ogust, if I have a bad hand he signs off in 3S, if I have a good hand he bids 4S. Makes sense, my error.


Life gets immensely simpler once one gives up the need to be right all the time, but I do like to look things over afterward objectively. I have been hoping this site might promote that, but so far the participation is minimal.


1303
The IAC Café / Re: audio and caution
« on: April 23, 2017, 06:16:23 PM »
I was using Chrome last night when I attended your talk. I clicked on the link Sanya sent. No audio. Later, someone else sent me a message asking if I had audio and I said no. He (or she) didn't have it either so thre were two of us at least. I have the latest Flash.

These things seems to vary in unpredictable ways. I used to happily use Firefox. But the online version of BBO does not seem to work well with Firefox, at least not on my computer (Dell computer on Windows 10) .  So I have been using Chrome more. Now there is a new issue. Yahoo seems to be very resourceful in inserting itself. As of today, when I open a new tab it announces itself to be New Tab by Yahoo. I had learned how to banish Yahoo on Firefox, I have not yet figured out how to do it on Chrome. I generally distrust any application, or whatever it is called, that does things that I had never, to my knowledge, asked it to do. Ok, probably I clicked something, but I did not intend to.  Yahoo is at the top of my list of programs that seem to make choices for me, I don't like that, so I banish it whenever I can.

Anyway, back to bridge. Precision and I are probably incompatible, some marriages just don't work, but I would very much enjoy the opportunity to play against it more often than I do. This club seems like a good place for it to happen. And for chat.

I know you advocated keeping 1D-(2D) as Michaels but do any play it  like a weak jump overcall? There is no jump of course, but something like KQTxxx with a bit outside. With a serious overcall, such as KQTxxx and a decent amount outside, one can afford to wait a round and come in with diamonds later if it still seems right. My thinking for an immediate 2D on the WJO sort of hand goes like this. The 1D is on a hand unsuitable for 1NT, wrong shape or wrong count. Fairly often it is wrong shape.  Often, not always but often, such a hand then would have quite long or quite short diamonds. Sometimes four diamonds and the wrong range for 1NT, but it often more shapely, either long or short.  When opener is long, second hand will seldom have the KQTxxx so this will not arise. When opener  is short, then such a six card holding in second hand  is a good deal more likely. And, at non-Precision tables, the auction might well begin with 1C, over which the call will be 2D. If it is one of those hands where opener has four diamonds but the wrong count for 1NT, we may still survive if we have a decent six card suit and the four diamonds are on our right.
No doubt this has been thought of by others,  and maybe the cost in giving up Michaels is just seen as too high, but it seemed like a sensible idea.


Added: Maybe this depends on how often a hand is opened 1D with short diamonds. Suppose opener has one diamond. If he had five in a major he would open 1M. If he is 4/3 in the majors and has five clubs does he open 2C? If the only time the hand is opened 1D on a stiff is when he is exactly 4=4=1=4 then my thinking is not so good since the case will not arise often. [Ah, I looked it up. Could be longish but weak clubs, so thus no 2C opener.]


1304
The IAC Café / Re: audio and caution
« on: April 23, 2017, 04:21:54 PM »
Beats me. I just clicked on
http://ocp.radio12345.com/
and it wants to give me  a weather forecast!

1305
The IAC Café / audio and caution
« on: April 23, 2017, 01:42:51 PM »
Hi all,

I am often cautious, and of course this has good points and bad.

Last night I joined Oliver's presentation of defense against Pecision. Sonya provided a link to an audio site. I clicked on it and I thought I had opened it but I did not get any audio. Anyway, I was looking at it today and thinking of installing whatever it is that has to be installed. This is where the caution comes on.

See
https://www.enigmasoftware.com/myradioaccesstoolbar-removal/
and
https://www.pcrisk.com/removal-guides/9248-myradioaccess-toolbar


Since I never got the audio going I am not sure if there was an audio part to the presentation or not. I am uncertain just what to do, I generally go with caution on web things. I know I miss out sometimes, but otoh I have never been hacked. On occasion I have had some slightly weird things go on, but not so severe that I couldn't cope.

Anyway, I am asking what the experience of others has been with this site.

Or maybe I somehow I ended up at some weird site all on my own? This can happen.










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