BBO Discussion Forums: 6S - BBO Discussion Forums

Jump to content

  • 2 Pages +
  • 1
  • 2
  • You cannot start a new topic
  • You cannot reply to this topic

6S Loose preempt

#21 User is offline   wyman 

  • Redoubling with gusto
  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,712
  • Joined: 2009-October-19
  • Gender:Male
  • Location:Las Vegas, NV
  • Interests:Math, Bridge, Beer. Often at the same time.

Posted 2012-February-02, 13:43

 TWO4BRIDGE, on 2012-February-02, 13:30, said:

quiddity's line does NOT touch ... and after drawing trumps, his FIRST lead is low toward the 10 .


Yeah you misread the posts above. Wayne wasn't talking about quiddity's line.
"I think maybe so and so was caught cheating but maybe I don't have the names right". Sure, and I think maybe your mother .... Oh yeah, that was someone else maybe. -- kenberg

"...we live off being battle-scarred veterans who manage to hate our opponents slightly more than we hate each other.” -- Hamman, re: Wolff
0

#22 User is offline   MrAce 

  • VIP Member
  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,971
  • Joined: 2009-November-14
  • Gender:Male
  • Location:Houston, TX

Posted 2012-February-02, 13:47

 inquiry, on 2012-February-02, 10:46, said:

I don't know, several lines suggest themselves, like:
  • the lazy man, cash two spades then heart ace. This works if west has a doubleton in either major
  • pull trumps, cash diamond ace and play a diamond (ducking if west plays low). This works if east is 2-6-2-3; 2-7-2-2. 1-7-2-3, etc with one diamond honor and the club king
  • play spade to king, led club queen and hope east covers with the king, if not but the queen wins, cash club ace, enter dummy with trump, ruff a club (hoping to drop the king), now combine chances for 3-3 diamonds with endplay chances. Here you will have black suit count on east so can try to figure out how best to play diamonds (endplay east when he holds Hx of diamonds if he refuses to unblock, for example, or endplay west if it looks like he has five diamonds from the play in the other suits, by exiting low diamond.

I am worried about line 1,
line 2 requires east to have club king and precisely two diamonds to a high honor
so I will go with line 3.



I kinda liked your line 3
"Genius has its own limitations, however stupidity has no such boundaries!"
"It's only when a mosquito lands on your testicles that you realize there is always a way to solve problems without using violence!"

"Well to be perfectly honest, in my humble opinion, of course without offending anyone who thinks differently from my point of view, but also by looking into this matter in a different perspective and without being condemning of one's view's and by trying to make it objectified, and by considering each and every one's valid opinion, I honestly believe that I completely forgot what I was going to say."





0

#23 User is offline   TWO4BRIDGE 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,247
  • Joined: 2010-October-21
  • Gender:Male
  • Location:Texas

Posted 2012-February-02, 14:16

 wyman, on 2012-February-02, 13:43, said:

Yeah you misread the posts above. Wayne wasn't talking about quiddity's line.

Thx... I see it now.... Wayne was referring to phil_20686 's line in post # 9 ..... which doesn't work.
Don Stenmark
TWOferBRIDGE
"imo by far in bridge the least understood concept is how to bid over a jump-shift
( 1M-1NT!-3m-?? )." ....Justin Lall

" Did someone mention relays? " .... Zelandakh

K-Rex to Mikeh : " Sometimes you drive me nuts " .
0

#24 User is offline   TWO4BRIDGE 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,247
  • Joined: 2010-October-21
  • Gender:Male
  • Location:Texas

Posted 2012-February-02, 14:17

Wayne.... I think we are ready for the "full meal deal" .
Don Stenmark
TWOferBRIDGE
"imo by far in bridge the least understood concept is how to bid over a jump-shift
( 1M-1NT!-3m-?? )." ....Justin Lall

" Did someone mention relays? " .... Zelandakh

K-Rex to Mikeh : " Sometimes you drive me nuts " .
0

#25 User is offline   DrMunk 

  • PipPip
  • Group: Members
  • Posts: 43
  • Joined: 2011-January-02

Posted 2012-February-02, 15:02

How about winning in hand. Draw trumph, ace and king of diamond. Ace and small clubs?

This wins when king of clubs is with east, and east has two or fewer diamonds.
1

#26 User is offline   gszes 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,661
  • Joined: 2011-February-12

Posted 2012-February-02, 17:54

I am mostly concerned with the bidding. Using 4n to ask
for key cards is fine but do not sign off when you have
all of the key cards because p must assume our side is
missing a key card when you bid 6 and they can never go
to 7 with a surprise:)))))))))))))))))). Even if you
want to stop in 6 go through 5n (if it is safe like it is
here) and then sign off in 6 after your p bids. I will
look at the play of the hand later.
1

#27 User is offline   gszes 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,661
  • Joined: 2011-February-12

Posted 2012-February-02, 18:40

the opening lead appears to be 5th best assuming 3rd/5th best
info not supplied so it is an assumption. The opening lead
also indicates a non continuous heart sequence at the top.

Using those assumptions is seems highly unlikely lho has
a singleton club or dia since they would probably prefer
to lead the singleton vs 5th best from a yuck suit. In
fact, lho would probably be more likely to be void in
dia or clubs vs having a singleton. The odds are roughly
70/30 (most of that 30% includes hands with lho holding a
singleton club or dia) that lho will have a relatively
benign distribution like 2633 or some such making the play
of taking the two top dia and a third dia (going for a ruff
or 33 break) the best try.

The fact that opener strongly rates to have 6 hearts means
all we have to do is ruff one dia and use the heart A
for a club pitch. We cannot safely test alternate lines
and still retain this option because the trump suit is our
only entry to the dummy and the vital heart A. Hoping the club
finesse works puts us in at best a 50% contract with no strong
reason to assume the finesse will work (lho had cruddy hearts
so they have values elsewhere.
1

#28 User is offline   quiddity 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,099
  • Joined: 2008-November-21

Posted 2012-February-02, 19:11

 TWO4BRIDGE, on 2012-February-02, 10:15, said:

After much agonizing thought, I too think quiddity's line is best.


Really? I was pretty sure it was the worst.
Here's an attempt at comparison:

Line 1: A. If RHO drops an honor, draw trump and diamond to the ten. Otherwise, K, x, hoping to ruff a diamond and cash the A.
Line 2: strip majors, draw trumps, diamond to the ten.

Line 1 gains when hearts are 2=6 and RHO holds one, two, or three diamonds containing exactly one honor.
Line 2 gains when LHO holds both diamond honors and (hearts are 1=7 or RHO holds 0-1 diamonds).

Line 1 gaining:
- 2=6 heart break : 11:7 empty spaces
- diamond breaks: 3-3 = 31.1%, 4=2 = 37.3%, 5=1 = 17.4%
3-3: 20 total holdings, RHO holds exactly one honor in 12 of them.
4=2: 15 total holdings, RHO holds exactly one honor in 8 of them.
5=1: 6 total, RHO holds an honor in 2 of them.
===> (12/20)*31.1 + (8/15)*37.3 + (2/6)*17.4 = 44.4% of the 2=6 heart breaks.

Line 2 gaining:
- 1=7 heart break : 12:6 empty spaces
- chance of LHO holding QJ = (12/18)(11/17) = 43.1% of the 1=7 heart breaks
- 2=6 heart break
- diamond breaks: 6=0 = 2.5%, 5=1 = 17.4%
===> (4/6)*17.4 + 2.5 = 14% of the 2=6 heart breaks

These lines are equal if RHO started with 6 hearts 58% of the time. My guess is that this is too low (given the loose preempt style and the solid heart suit). If RHO is always opening 3 whether he has 6 or 7, then the chance he has 6 is the same as the chance that LHO has the 4 given 12:7 empty spaces (63%). In fact RHO might open 4 on some of his 7-baggers so it looks like the diamond ruff line is significantly better.
2

#29 User is offline   Cascade 

  • PipPipPipPipPipPipPipPip
  • Group: Yellows
  • Posts: 6,766
  • Joined: 2003-July-22
  • Gender:Male
  • Location:New Zealand
  • Interests:Juggling, Unicycling

Posted 2012-February-02, 20:27

 gszes, on 2012-February-02, 18:40, said:

the opening lead appears to be 5th best assuming 3rd/5th best
info not supplied so it is an assumption. The opening lead
also indicates a non continuous heart sequence at the top.


RHO opened 3.

LHO lead from either 6 or 64.
Wayne Burrows

I believe that the USA currently hold only the World Championship For People Who Still Bid Like Your Auntie Gladys - dburn
dunno how to play 4 card majors - JLOGIC
True but I know Standard American and what better reason could I have for playing Precision? - Hideous Hog
Bidding is an estimation of probabilities SJ Simon

#30 User is offline   nige1 

  • 5-level belongs to me
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,128
  • Joined: 2004-August-30
  • Gender:Male
  • Location:Glasgow Scotland
  • Interests:Poems Computers

Posted 2012-February-02, 21:55


Cascade asks "Lead 6. 3 was described as "loose could be a six-card suit". How do you play?[

Guess: K, A, x towards Q.
- If Q wins then x towards K, A and another round of , hoping to ruff the fourth round in dummy.
- If LHO wins K, then cash A , KQ, QJ.
- If RHO wins K then run return to dummy's A, hoping RHO has fewer than 7 .,
:
0

#31 User is offline   gnasher 

  • Andy Bowles
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 11,993
  • Joined: 2007-May-03
  • Gender:Male
  • Location:London, UK

Posted 2012-February-03, 02:24

Quiddity, both of your lines work if RHO has a singleton diamond honour and K - in Line 2, he'll be endplayed.

With hearts 2=6 and diamonds 5=1, K onside is 50%, so I think the figure for Line 1 gaining should be
===> (12/20)*31.1 + (8/15)*37.3 + (2/6)*17.4 * 0.5 = 41.5%
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
0

#32 User is offline   Cascade 

  • PipPipPipPipPipPipPipPip
  • Group: Yellows
  • Posts: 6,766
  • Joined: 2003-July-22
  • Gender:Male
  • Location:New Zealand
  • Interests:Juggling, Unicycling

Posted 2012-February-03, 03:29


Wayne Burrows

I believe that the USA currently hold only the World Championship For People Who Still Bid Like Your Auntie Gladys - dburn
dunno how to play 4 card majors - JLOGIC
True but I know Standard American and what better reason could I have for playing Precision? - Hideous Hog
Bidding is an estimation of probabilities SJ Simon

#33 User is offline   JLOGIC 

  • 2011 Poster of The Year winner
  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,002
  • Joined: 2010-July-08
  • Gender:Male

Posted 2012-February-03, 04:28

Against me on this hand they overcalled 2H, so I was simply going down...I played diamond diamond diamond and planned to ruff a diamond and pitch a club, but RHO pitched the H4 on the diamond...oops..so now I hooked a club. Goes to show little things matter a lot. FWIW I thought at the time that a low club from hand towards the QJ was probably the best line after a 3H overcall.
0

  • 2 Pages +
  • 1
  • 2
  • You cannot start a new topic
  • You cannot reply to this topic

9 User(s) are reading this topic
0 members, 9 guests, 0 anonymous users