OCP Forums

Please login or register.

Login with username, password and session length
Advanced search  

News:

You are welcome to register if not an OCP user.
Please bear in mind, however, that this Forum is mainly
intended to support people learning or using OCP.

Pages: [1] 2 3 ... 10
 1 
 on: May 28, 2018, 12:35:16 PM 
Started by FeaxSA - Last post by OliverC
Looks right to me...

 2 
 on: May 28, 2018, 06:28:36 AM 
Started by FeaxSA - Last post by FeaxSA
1 !C - (P) - 1NT[ !S]-(2 !S)
Pass = Gamma in  !S
Double = Alpha in  !H
2NT = HOC

 3 
 on: April 10, 2018, 09:13:17 AM 
Started by zdedo - Last post by OliverC
One thing: Don't forget that the OCP system specifies Transfer Lebensohl over Doubles of their weak 2's (whether the doubler is 2nd-in-hand or protecting). Now the bidding would start:

(2 !H) - No   - (No)   - X
(No)   - 3 !C - ??

If West doesn't come in with 3 !H, North will bid 3 !D and now his !H King is protected. If West does come in with 3 !H you're no worse off if North passes or bids 3 !S.

 4 
 on: April 09, 2018, 01:15:38 PM 
Started by zdedo - Last post by RogerPfi
I have made a "problem format" of this hand, see the thread

         http://ocp.pigpen.org.uk/smf/index.php?topic=1257.0

A big thank you to Walid for for including the tiny URL.

FYI - you can copy the text of ANY (BBO) tiny URL and drop it on to an open aaBridge window.

That way it will open and NOT automatically show you the Opps cards.

--
Roger

 5 
 on: February 18, 2018, 10:05:28 AM 
Started by OliverC - Last post by OliverC
It's very true that you can often only play as well as Opps allow you to play. Opps remained silent here and that helped us. Clearly on this occasion any sensible auction is going to go 1 !S - Pass if Opps are silent. Some people do play weak jump-shifts, however, irrespective of their support for Partner. I spotted one table where the bidding did go 1 !S - 3 !C.


The original point of the post was as much to do with the value of bullets in trump contracts as anything else.

 6 
 on: February 12, 2018, 01:04:12 PM 
Started by zdedo - Last post by brian_m
couldn't see this line if I played at trick 6 before continuing in  !D I can make!
what is the expert say on this and the bidding also?
Thanks
http://tinyurl.com/yd4zjl66

I'm not claiming to be an expert, but I can offer a couple of comments.

You ended up in the best contract. It's all too easy to be losing a  !S, a  !H and a  !C in 5 !C. If you get a (most likely) 3-2 break in  !S, you're home in 4 !S, same three losers.

Your problem is not planning through the hand, I think. You have exactly two certain entries to your hand without ruffing your  !D winners. After East shows out, you KNOW that you're going to lose a  !H and two  !S, so you can't afford to lose another  !C.

You cannot make the contract unless West is kind enough to kill his partner's club winner with one of his trumps (try it... lead your  !C at trick 6, but West must discard rather than ruff), so you go down anyway against decent defence, but locking yourself on table as you did is absolutely a 0% line. Well, OK, not 0%, you're OK if you drop a singleton  !C K with the  !C A.  ::)

So yes, try the  !C finesse at trick 6, and hope that West makes a (silly!) mistake by ruffing, but the contract should go down against competent defenders as the cards lie.

 7 
 on: February 12, 2018, 12:40:27 PM 
Started by zdedo - Last post by brian_m
Well done for not giving up! What your opponent was doing I can't imagine, he could see  !C K sitting over him and (unless  !S were 4441) knew that his partner couldn't stop the 4th  !S trick.

 8 
 on: February 12, 2018, 09:00:29 AM 
Started by zdedo - Last post by zdedo
couldn't see this line if I played at trick 6 before continuing in  !D I can make!
what is the expert say on this and the bidding also?
Thanks
http://tinyurl.com/yd4zjl66

 9 
 on: February 12, 2018, 08:44:53 AM 
Started by zdedo - Last post by zdedo
playing in friendly pick up at BBO with Micheal(rite-bid) we stretched to 4 !D opps took 2 !H!D W got the  !CA should cash it at trick 4 for -1 instead he returned a trump so I thought I could squeeze him in  !S if he started with 4 cards or more and voila MAKES  ;D

http://tinyurl.com/yaqg7f2b

 10 
 on: January 27, 2018, 06:51:32 PM 
Started by OliverC - Last post by OliverC
The ability to move freely between the two hands is a really precious commodity. Sometimes, entries to one hand or another are few in number and on such occasions you need to protect those entries like mad, and work hard to create other entries where possible. This was a simple hand, but it shows the difference when you do the above rather than using up entries needlessly or squandering them:

Love All, Dealer East

Bidding
East     South     West     North
1 !S      No           No         X
2 !S      No           No         3 !D
All Pass

South (Dummy)
!S K76
!H J1062
!D J74
!C J83

!S Queen led

North
!S A53
!H KQ7
!D AQ652
!C A9

I knew Eszter had a strong hand from her bidding, and clearly the !S King was well placed, but I didn't feel my motley collection justified any movement over 3 !D (rightly as it turned out - the Spade lead gives the defence a tempo and a Club lead would have given Declarer real problems in 3NT, since West had !C Q10xxx).

East led the !S Queen. How do you assess your chances and how do you play?

Firstly, Declarer needs to recognise that the majority of the outstanding high cards will be with East rather than West, so the chances of the !H Ace and !D King being with West are greatly reduced. You have only one sure entry to Dummy, which is the !S King and even that will be under threat if the Spades are 6-1 (which is a serious threat given the bidding).

Safest, therefore, to take that entry while it's a relatively sure thing, so win trick 1 in Dummy with the King. Now what? There's absolutely no incentive to delay attacking trumps, but how is it best to play the suit? With no other considerations low from Dummy to the Queen is the best play, but you might play differently in this situation when it's more likely that the finesse of the Queen will lose (eg: Small to the Ace and small back towards the Jack, which might gain you a tempo when East ducks with !D Kxx in case partner has the doubleton Queen). One thing is sure, there are two very good reasons why you should not lead the Jack here:
  • You inevitably lose an extra Diamond trick when West has the singleton King, and lose a !D trick unnecessarily when West has !D Kx
  • More critically, when the finesse loses, you have not gained back an entry to Dummy. If the finesse of the Queen loses, the Jack becomes an entry
(2) Above pretty much determines how you should play, which is the standard "best line" of small to your Queen. If East has the King, Dummy's Jack is now an entry. Why is this important? Well the Jack of Hearts is why: You want to enjoy Dummy's 4th Heart in order to be able to discard either a losing Club or a losing Spade from your hand. You cannot rely on an entry in Hearts themselves if whichever defender holds the Ace holds up twice and takes the 3rd round.

Eszter led the Jack of Diamonds, which lost to East's King. East now solved our problem, however, by promptly leading out the !H Ace!. Now what? If you just played the !H 7 from your hand, then this post is aimed at you, because there is absolutely no reason not to play the !H King or Queen under the Ace, thereby gaining an entry to Dummy's long Heart in the Heart suit itself. If you play the 7 on auto-pilot you've blocked the Hearts and can never get rid of a black suit loser.

If you were leading the Heart suit yourself, you'd start with the King and then the Queen in order to force out the Ace. Why play any differently when Opps freely play the Ace of their own accord? Okay, we're only talking about a relatively insignificant overtrick on this occasion, but if you don't get into the habit of unblocking suits like this automatically and actively seeking to create entries at every opportunity, then you will find it much harder to do so when it's critical to the success of your contract.

Pages: [1] 2 3 ... 10