Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - kenberg

Pages: 1 ... 3 4 [5] 6 7 ... 89
61
The IAC Café / Re: IAC vs ACOL - New Match Sunday April 3rd
« on: April 10, 2022, 06:33:52 PM »
Ah yes, double clicking! I might have thought of that.

It illustrates what I said about tech being easy if you know what you are supposed to do.
 
Windows Explorer and I do not think the same way. I need some sort of caution sign whenever Explorer is involved. Back in my days of working on cars, some bolts had reverse threads. A guy could waste a lot of time if he didn't think of that.

Actually I guess I sort of double-clicked in that I clicked once in the main panel and then clicked again in the side panel. It just took a while.

Ok. Double click. Got it. Thanks.

 

62
The IAC Café / Re: IAC vs ACOL - New Match Sunday April 3rd
« on: April 10, 2022, 12:58:14 PM »
Aha: You can skip the lengthy explanation below of how I got there and just go to
https://docs.google.com/document/d/1dOzg3D7xVyud2SHHXN0KpP__bib-nNOL/edit


Tech things often present challenges. I was able to overcome the challenge  and I will describe my solution.

Here is the link from above:
https://tinyurl.com/mrycy7fz
There are three ways for me to open such a link but they all lead to the same result.
The three ways are to
click on it in your message,
copy it and insert it in google and open it,
or, after inserting it in google,  a highlighted form appears and I can click on that.
These all open up at the URL:
https://drive.google.com/drive/folders/1U4ubDgm611WikH_f6FLeJTKrdhmD_EeK

Ok, this might be the start of the issue. The URL that opens begins "drive.google" rather than "tinyurl".

But of course something is open so can I work with that? yep, but it wasn't easy.

What I see in front of me after https://drive.google.com/drive/folders/1U4ubDgm611WikH_f6FLeJTKrdhmD_EeK opens is the word "Folders" and beneath "folders" I see "2022.02" and "2022.04"

Over on a side panel there is stuff about "owner" and "who has access".
So I click on "2022.04" in the main panel.
Nothing opens immediately but the side panel changes.

I now go to the side panel and click on "2204.04".

This brings up, in the main panel, icons for 10 documents, a mix of pdf, word and x (I have no idea what an x document is).

I click on the one called "Challenge2..." It's a word document.

It opens, although I can only see part of it, in the side panel.

So I go over to the side panel and click on it, the part of "Challenge..." that I see, and it opens full size.

Now I would like to have it easily available in the future so I hope to save it. I go over to "file", find "download, and click on "download". It gives me downloading options including "'pdf" and '.word". I like the pdf format so I click on that.

A pdf file is created, I find the option to "download", and click on it. It downloads, unopened.

I open the downloaded pdf file.

Open pdf files can be saved to my desktop so I do that.

And now it is right there whenever I wish to open it.


Thoughts: Tech things are usually easy providing you know what you are supposed to do and near to impossible if you do not know what you are to do. Very very possibly there is a much simpler way to get to the file, but the above approach is the only way that I found.

In 1954 I bought a 1947 Plymouth for $175 that not surprisingly needed work. So I figured it out. But a wrench gets applied to a bolt, pretty obvious. Not quite so obvious with tech.


63
The IAC Café / Re: IAC vs ACOL - New Match Sunday April 3rd
« on: April 07, 2022, 08:05:01 PM »
Hi all
Colin was so kind to write a review of 4 boards from the later session, you'll find file
Challenge 2 Commentary by Colin.docx
in the same directory where all results and travellers are: https://tinyurl.com/mrycy7fz
I had some trouble finding it but now I have it, thanks.

64
The IAC Café / Re: IAC vs ACOL - New Match Sunday April 3rd
« on: April 05, 2022, 11:51:30 AM »
Having played the hands, it's tough to look at this abstractly. But a thought or two.

Surely E has the !S A on the auction. So if he has a stiff !S it's the A. So I think I would start by winning the !C A at T1 (of course) and then leading a small !S from the board. If E produces a non-ace then probably, or hopefully spades are 3-2  and, since I agree that the non-1NT opening by acol suggests some shape, you tread carefully with the !D suit. And of course you can hope E we dealt the !S A doubleton, in which case you could hold the trump losers to 1. If the !S A flies at T2, then very likely W held 4 and you will be losing 2 !S tricks. Meaning the !D losers have to be held to 1. But if indeed !S are 4-1 then there is a better chance that !D are 3-2. E has shape but he doesn't have to have 2 stiffs.

That's my thinking, trying to put aside what I know of the actual layout.

Added: If !S are 4-1 then when E wins his A he has to lead something. This could help. Say he leads a !C. One route to 10 tricks could be: The !C A, 2 !C ruffs in hand, 2 top !Ds, 3 !H tricks, and the !S K,Q. That's if the !S A flies. If not, then we play for trump to be 3-2 with various options.

Further add-on: I sometimes amuse myself by giving hands to the robots. I do not claim  robots are experts, and of course they do not know EW are playing acol.
Left to themselves, they reached 4 !S on the auction
1 !C - X - Pass - 2 !S
Pass - 4 !S

The opening lead was the stiff !D and the robot declarer took 11 tricks.

So I revised it. I left the auction alone but I insisted that the robot defender lead the !C K at T1. The robot declarer took it and led a small !S, E ducked, the K won, he took 10 tricks.
Proves nothing but it's what the robots did.

65
The IAC Café / Re: IAC vs ACOL - New Match Sunday April 3rd
« on: April 04, 2022, 11:22:42 AM »
It's not over 'till it's over. Oh, it's over?
Nah, we can do it again.

66
Sleight of Hand / Re: More Donna
« on: April 03, 2022, 12:35:08 AM »
As mentioned, Donna's hands can be useful.

Now: If you had bid 2 !S, undiscussed, would I have taken it as fit showing? Well, maybe. Sort of a what the hell else situation. You could have opened 2 !S if you had six spades and, say, two hearts. And if you had only five spades why on Earth would you want to bid 2 !S unless you also had a heart fit to fall back on? So spades and a heart fit makes sense.

So maybe I could work it out.
Don't bet the house on it.

Should it require that you have four hearts to go with your five spades? Oh, I don't know. It should be a hand where 3 !H is a reasonable contract when I don't fit spades.

It's something of a magic hand. Probably it makes 4 !H more often than not, but maybe not with a lot of room to spare.

67
Sleight of Hand / Re: More Donna
« on: April 02, 2022, 09:22:14 PM »
Yes, that's pretty much my view. Suppose we play in hearts. We have a stiff diamond in the hand with the three hearts and our points are all useful, for example, no !D Qxx opposite the stiff !D.  The hands fit very nicely.  And still it's not exactly a cold 4 !H. Or a cold 4 !S. In 4 !S the opponents can start with two top diamonds shortening your trump and then I think you had better hope that spades are 3-2 and the !C K is onside. You then get 5 spade tricks and four clubs, and you have the control needed to establish a heart.


68
IAC & Master Solvers Club / Re: 2022 MAY MSC
« on: April 01, 2022, 06:20:25 PM »
PROBLEM A: 4 Clubs             100
PROBLEM B: 1 Spade             10
PROBLEM C: Double             100
PROBLEM D: 3 Hearts             90       
PROBLEM E: 3 Hearts             90
PROBLEM F: 3 Clubs               90
PROBLEM G: 6 Spades          100
PROBLEM H: Heart 6              100

                                             680

Except fpr B the panel did a good job of scoring this month.

69
IAC & Master Solvers Club / Re: 2022 MAY MSC
« on: April 01, 2022, 01:30:33 PM »
I just got a note from Kit Woolsey congratulating me on my extraordinarily clear reasoning for my answers.

Today is April 1, right?

70
IAC & Master Solvers Club / Re: 2022 MAY MSC
« on: March 30, 2022, 04:58:22 PM »
SOLVER: Ken Berg
 
Your Solutions for the May 2022 Contest
-------------------
PROBLEM A: 4 Clubs
PROBLEM B: 1 Spade
PROBLEM C: Double
PROBLEM D: 3 Hearts
PROBLEM E: 3 Hearts
PROBLEM F: 3 Clubs
PROBLEM G: 6 Spades
PROBLEM H: Heart 6

What's done is done.

71
Sleight of Hand / Re: Drury in action
« on: March 29, 2022, 04:03:05 PM »
Neither the robots nor BWS play 2 !D as four card Drury. I think Mike Lawrence, on his conventions disk, also does not play 2 !D as Drury. And there is also the question of on or off if the opponents enter over the 1 !H call.

That's part of why I thought this post could be useful. The conversation "Play Drury?",   "Ok", is not sufficient.

I gave the hand to the Robots:

Pass     1 !H
2 !C     2 !D
2 !S     3 !C
3 !D     3 !H
Pass

They also only made 3.

I think the following is the argument for just using 2 !C as Drury. If partner rebids his major, showing a light opening, we pass whether we have three or four trump cards. If partner bids 2 !D over 2 !C, we can bid 3 of the major with invit values and four trump. So then pass - 1 !H - 2 !D shows diamonds. We are willing to give up the natural meaning of Pass - 1 !H - 2 !C because Drury is very useful. But while perhaps using Pass - 1 !H - 2 !D as four card Drury has benefits, the improvement in Drury might not be enough to warrant giving up a natural 2 !D.

At any rate, it's important to get it settled which is being played. I think ML has his own set of clever ideas but I can't recall them exactly because I have never used them with anyone.

72
Sleight of Hand / Drury in action
« on: March 28, 2022, 09:57:13 PM »
Drury is played in different ways.
Bridge World Standard, for responses after a third or fourth hand opening bid of 1 !H or 1 !S, says

Passed-Hand Situations: These methods apply to responding to a major-suit opening by a passed hand:
(a) one notrump is semiforcing (6-12 points);
(b) two clubs is a strong raise (a hand too strong for a single raise, but unsuited to a higher bid);
(c) three clubs is natural, similar to two diamonds but with long clubs;
(d) a jump-shift other than three clubs is a strong raise with length in the suit bid;
(e) a double jump-shift is a splinter raise.

So 2 !C is Drury, 2 !D is not Drury.

We also have to decide when Drury is on. Say we open 1 !H in third position and fourth hand enters the auction. My own preference is that if 2 !C is available as a bid then 2 !C is Drury. I am not sure what BWS says about that.


Anyway, here is a hand:


!S  Q5
!H  KJT73
!D  K96
!C  A84

Matchpoints, nobody vul, three passes to you, you open 1 !H.

Opponents stay out of the auction


Pass     1 !H
2 !C     2 !D
2 !S     2NT
3 !D

What now? The 2 !D shows a full opener, or, as I like to think of it, a hand where it seems at least possible that we should be in 4 !H.
I was playing with robots so they told me that 2 !S showed at least three spades headed by the Q or better.
I intended my 2NT as passable, I think that is reasonable, but the bots claim it is forcing to 3 !H.
And the bots tell me 3 !D shows at least 3 diamonds headed by at least the Q.

Ok, maybe the bots and I were not on exactly the same page. The way I see it, the bot could have bid 3 !H, so bidding 3 !D should be a hand with a little more than a minimum 2 !C call.

So should I bid 3 !H or 4 !H?

Part of my reason for posting is so others can comment on whether they think 3 !D should be more encouraging than 3 !H.

Well, I bid 4 !H. I made 4 !H. But it required a bit of luck.

!S  A864
!H  854
!D  AQT7
!C  97


!S  Q5
!H  KJT73
!D  K96
!C  A84

So: Did we overbid? And if so, who?

It seems useful to have some hands where it is maybe not certain whether or not we belong in game and discuss what to make out of the Drury bid and the follow-up.

 



73
Sleight of Hand / Re: Opener's reverse: Definition
« on: March 28, 2022, 03:37:09 PM »
Yes, the hand makes from either side as the cards lie. However, there are more chances with N as declarer.

!S  AQT6
!H  AQ85
!D  KQ43
!C  J

!S  K743
!H  764
!D  T
!C  AKQ87

Played by N, a heart lead from E would be great but of course that doesn't happen. However, that provides the opportunity tosoon lead that stiff !D from the board, as you did. If W holds the A and hops up, you have 4 !S tricks plus 1 ruff,  together with 2 !D tricks,  4 !C tricks and 1 !H trick. So you don't have to care how clubs split or where the !H K is. It's true that W does best to duck when the stiff !D is led but that play is not easy to see. If he does duck then there is still the reasonable possibility of a 4-3 split in clubs and that gives 4+1+1+5=11 plus a ruff for 12. When the clubs don't split you fall back on the working !H finesse. So the options are a lot better. Played by S, on an opening !H lead from W, I have to choose at T1. If !C are 4-3 and !S are 3-2 then I don't need the finesse (5 clubs, 4 spades, 1 heart, 1 diamond, 1 ruff) so probably I won't take the finesse at T1. Oops. Played by N, you get to try everything else before you go for the finesse as your last hope.

However, that was not my thinking as I skipped over my spades. I considered my hand as minimal for my 2 !C call, I was thinking 3NT might play better from my side on a spade lead. Again, that's bridge for you.

74
Sleight of Hand / Re: Should declarer work this one out?
« on: March 27, 2022, 03:14:16 PM »
Yes, and even at matchpoints it is often right to try to bring in a slam contract even if that could lead to an extra undertrick. Some will have stopped in 4 !H, it is not all that great a slam. If the contract goes down you lose the same amount to them whether you are down 1 or down 2, but if you bring the contract home you are beating them.

75
Sleight of Hand / Re: Should declarer work this one out?
« on: March 27, 2022, 11:40:53 AM »
The form of scoring might matter. At matchpoints he might decide to try for down 1 but even then the third heart is premature. Ducking a club seems like the best try for 11 tricks.

But wait. What about T1???


As far as inferences go, it is the spade play at T 1 that gets my attention. Rho played the 6? We should be able to draw some conclusions from that. If Rho holds the QT you would expect the T to be played and really the T from KT also since pard has hardly underled an A here.  Anyway, not the 6. The auction might matter a bit, since perhaps Rho could be confident declarer has the stiff A, but still the 6 is a very surprising card and it would be reasonable to think that at least maybe Rho has exactly what it turns out he has. If he is, say, missing the 9 why would he play the 6 instead of the T?

As to the pitch of the !S K later, pitching a spade seems completely natural, and if the K is anything it is probably suit preference. It wasn't but it could have been. Maybe reverse suit preference? Who knows? To borrow from Freud, sometimes a spade is just a spade.

The inference from the T1 !S play gives us hope but there is also the inference of What Else? We are going to put Rho in with a !H and if he has a !D that he can and does lead then that might allow us to score our J but we will still lose a !C. So we have to make sure Rho does not have a !D when we put him in. So we lay down the !D AK. Voila, the Q falls. Now we are home if Rho holds either 1 or 2 clubs. Can he hold just one club? That makes him 7=3=2=1 but it is possible. So we lead a !C to the A on the board and then a small !C from the board. If the small !C is ruffed that's fine, he has only spades left in his hand. If the small club is not ruffed then we take the A and lead a !H.


As mentioned above, that !S 6 at T1 could give us hope that this play is working, maybe Rho should have played a higher !C hoping to deceive declarer. But of course that could deceive partner also.

Still, I think the logic is: If Rho has !D Qx and !C x or xx, we can make this, and if he doesn't have that holding then as near as I can tell we cannot make it.

 

Pages: 1 ... 3 4 [5] 6 7 ... 89