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1
Dealer Scripts / Re: Vul NT vs nv NT opener script
« Last post by brian_m on June 24, 2021, 08:08:41 AM »
A bug rather than deliberate non-implementation, then. Well done for the detective work.
2
Dealer Scripts / Re: Vul NT vs nv NT opener script
« Last post by abby cj on June 24, 2021, 02:33:04 AM »
1NT vul/nv Opener
I was wanting to set a teaching table so that the script for NT opener was either 10-12 OR 13-15 based on vulnerability, but was unable to do so.  At best I could get every other hand to be vul and wasn’t able to adjust script accordingly.  This meant that I had to discard every other hand.
Here is what I did find out regarding this:  There is a known bug in the system when trying to set up a practice bidding/teaching table and setting the vulnerability.  This has been identified and commented on by others trying to do similar vul /nv settings.
But I did find an acceptable work around for me. 
I wanted to be NS players.  When first sitting at new teaching table the NS hands are NV.  If this is desired, then, under Deal Source/Advanced, enter the desired script under the ‘Use This Input for the Dealer Program” and click on the box. (I used script specific to only N hand being 1NT opener with nvul range).  Under Dealer do not have any position designated as Dealer (u will have to go in here and unclick all 4 positions). Click on the X in upper right corner to close the box. I now find that all subsequent redeals had N as Dealer, NS nvul and my desired hand type and hcp range for 1NT opener worked every time.
When wanting NS to be VUL, if just setting up table, redeal until have NS vul.  Then under Deal Source/Advanced, enter the desired script (again I used script specific to N hand only but this time with vul opening range) under the ‘Use This Input for the Dealer Program” and make sure the Use this Input box is checked.  Again under Dealer do not have any position designated as Dealer.  Close the box.  Again I found that all subsequent redeals had N as Dealer, NS Vul and my desired hand type and hcp range for 1NT opener worked every time.
Now I am able to practice bidding and responding to 1NT openers based on consistent vulnerability status without having to discard every other hand.
3
Dealer Scripts / Re: Vul NT vs nv NT opener script
« Last post by abby cj on June 21, 2021, 11:46:10 PM »
ok...tx :)
4
Dealer Scripts / Re: Vul NT vs nv NT opener script
« Last post by brian_m on June 21, 2021, 07:42:11 AM »
yes..I tried that but it doesn't work..The best I can get is every other deal being vulnerable.

As above, it's possible they don't let the 'vulnerable' command override the usual rotation of vulnerabilities. The easy answer is to skip the deals you don't want, of course. If you want to pursue this I'd suggest writing to BBO support in the first case and asking then whether the "vulnerable" command has been implemented. They could hopefully ask one of their programmers. It's impossible to know for certain without seeing BBO's source code.
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Dealer Scripts / Re: Vul NT vs nv NT opener script
« Last post by abby cj on June 21, 2021, 12:57:25 AM »
yes..I tried that but it doesn't work..The best I can get is every other deal being vulnerable.
6
Dealer Scripts / Re: Vul NT vs nv NT opener script
« Last post by brian_m on June 20, 2021, 05:54:10 PM »
I am trying to set the vulnerability script for the dealer when at a practice table in BBO.  So far I have been able to 1) set the dealer 2) set the NT range..but I am unable to add in the vulnerability.  I am not a computer person at all...any advice/suggestion as to how to accomplish this is appreciated.

I don't know how fully BBO have implemented Hans van Staveren's dealer program in their dealer scripts, so I can't guarantee this will work - but if you want to set the vulnerability in the stand-alone dealer program, the command to put in the script file is

vulnerable ??

Where ?? is one of

none
all
NS
EW


If you can't get this to work, let me know and I'll have a play with it, but it may take me a few days to find the time to do so.

7
Dealer Scripts / Vul NT vs nv NT opener script
« Last post by abby cj on June 20, 2021, 05:04:43 PM »
I am trying to set the vulnerability script for the dealer when at a practice table in BBO.  So far I have been able to 1) set the dealer 2) set the NT range..but I am unable to add in the vulnerability.  I am not a computer person at all...any advice/suggestion as to how to accomplish this is appreciated.
8
Interesting Play Hands / Double dummy play problem.
« Last post by brian_m on June 28, 2020, 08:40:39 PM »
https://www.bridgebase.com/tools/handviewer.html?bbo=y&lin=pn|brian_m,kasey,IBracem,brucek|st||md|3S24QAH36AD5C689JK%2CS356H4789JDJC457T%2CS89JHTD36TQKAC3QA%2C|rh||ah|Board 25|sv|e|mb|1C|mb|p|mb|2C!|an|!c positive%2C GF|mb|p|mb|2D|mb|p|mb|3C!|an|5 controls|mb|p|mb|6C|mb|p|mb|p|mb|p|pc|HK|pc|HA|pc|H4|pc|HT|pc|CK|pc|C4|pc|C3|pc|C2|pc|C6|pc|C5|pc|CQ|pc|H2|pc|CA|pc|H5|pc|C8|pc|C7|pc|DA|pc|D2|pc|D5|pc|DJ|pc|DK|pc|D4|pc|H3|pc|CT|pc|H7|pc|S8|pc|HQ|pc|H6|pc|S7|pc|SQ|pc|S3|pc|S9|pc|SA|pc|S5|pc|SJ|pc|ST|pc|CJ|pc|H8|pc|D3|pc|D7|pc|S4|pc|S6|pc|D6|pc|SK|pc|D9|pc|C9|pc|H9|pc|DT|pc|S2|pc|HJ|pc|DQ|pc|D8|

I'm not really endorsing Mark's precipitous jump to 6 !C, in fact I thought we might have missed 7 !C when I saw the two hands, but once I saw all four hands I'm having great difficulty in finding a line which makes 12 tricks on the K !H lead. If East did not have the 10 !S then I could possibly do it by leading away from AQ !S and getting another entry to dummy by finessing  !S 9, but unfortunately East's  !S are K10x not Kxx, which puts paid to that idea.

If you let West ruff a  !D then she will continue  !H.

Can anybody see a line which makes the slam?

9
Interesting Play Hands / Tempo
« Last post by OliverC on July 07, 2019, 06:56:07 PM »
Playing in tempo can be extremely important. Sometimes the slightest hesitation can give the game away, and your subtle subterfuges will all come to naught. Often you have to try to anticipate what might happen so that you can be ready to play in tempo so as not to give the game away. Holding up your King with Kx when Dummy holds AQJxxx in a suit with no side entries is a well known ploy (when you think Declarer only has 2 of the suit).

Another situation came up today in a hand I played with oktay. You are North, the Dealer at Game All. You are holding

North
 !S A432
 !H Q7
 !D QJ3
 !C J954

After 2 passes, partner opens a weak 2 !H . This is passed round to East, who protects with 3 !C , and West's 3NT ends the auction. You select the !H Queen as your opening lead and Dummy goes down. This is what you can see:

East (Dummy)
 !S Q65
 !H 9
 !D K94
 !C KQ10872

                North
                !S A432
                !H Q7
                !D QJ3
                !C J954

Using o/e signals, Partner plays the !H 4 on trick 1, which Declarer wins in hand with the King. Declarer cashes the !C Ace (Partner contributes the 3) and then tanks for half a minute. What are you thinking about in the meantime?

The play at trick 1 suggests that Declarer has !H AKxx or AK10x. You know about the !C Ace, but the current pause suggests that Declarer started with the stiff !C Ace, as otherwise his second Club would have hit the table already. Declarer will also have either the !D Ace or the !S King, but probably not both of those cards, or Partner will have opened vulnerable with something like a 2-count. If Partner has the !S King then you cannot prevent an entry to Dummy in Diamonds, but if Partner has the Diamond Ace, the whole hand might revolve around trying to prevent Declarer from reaching Dummy with the !S Queen. It's entirely possible that the hand is going off whatever the position, because you know Declarer probably only has 1 entry to Dummy, and the Clubs are not going to run, and if Declarer has the !S King you cannot prevent them from reaching Dummy with the Queen, but you need to work the hand out as best you can.

After his tank, Declarer plays the !S King. If you hesitate, even for a moment, especially if you going to duck, then you've given the game away, because you only have something to think about if you have the Ace. If you end up taking the trick, a pause doesn't matter, but a pause before ducking is foolish. oktay thought for about 10 seconds and then ducked.

As it happened, Declarer was clearly not paying any attention, because he then played the !S 10 and then, after another pause, ran it and lost to partner's Jack. A 3rd Spade went to your Ace (all following) and you could cash your 4th Spade (Dummy & Declarer discarding Diamonds and Partner a Heart) before leading the !D Queen, allowing partner to take Declarer's King with their Ace and return a Diamond to your Jack. You exit with your 3rd Diamond and Declarer has to concede 1 Heart trick to South for -2.

This contract was probably doomed from the start, but you have to realise that You can work out that Partner has the !D Ace or the !S King, but Declarer cannot be sure. From their viewpoint South might or might not have the !S Ace and/or the !D Ace, so best to keep them guessing.
10
Bidding Challenges / Re: Positive responder with 55+
« Last post by DickHy on June 30, 2019, 05:58:45 PM »
Hi, Jim and John, many thanks for replying

... and also to Brian for the alternative treatment regime.  I will pass that on to my partner and we can chat about it.

One thing that occurred to us after I posted was that over 3N responder could make a slam try ... as one might in a 2/1 or SAYC system when thinking about a minor suit slam.

The positive 55 responder would initial reply to the 1C opening with the higher ranking 5c suit, so over the 3N sign-off by opener, responder could bid the lower suit.  In the normal fashion, opener could reject the suit(s) by signing-off in 4N, or could accept the lower suit by cue bidding an ace in the two suits responder does not have.  If opener preferred responder's first suit, he would bid that at the 4-level.  After acceptance/choice presumably bidding would have to be cues/RKCB.

This sort of scheme might work well for 65 hands when the 6c suit is lower ranked - as it was in the example in the post - because when responder bids his 5c suit over 3N it will be of higher rank than the first suit he bid.  Thus, the first suit must be a 6-carder.  Opener could proceed as above: cues to accept, 4N to sign-off, 5x to choose the 5c suit.

Of course the scheme won't work with 65 hands when the 6c suit is higher ranked, because opener will not know from the 4y  bid over 3N that responder is 55 and not 65.  Maybe then, responder should rebid his 6c suit over 3N.

All that seems much more tortuous than the alternative treatment.

My partner and I also use a hybrid system with a simplified version of Asking bids after 1C - positive, but we use alpha, theta and iota, gamma, eta and epsilons. 

Anyway, thanks for responding guys,

all the best

Dick

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