My very bad bid
#21
Posted 2014-October-09, 06:11
Also, agree that forcing 1NT by a passed hand is part of the problem.
-gwnn
#22
Posted 2014-October-09, 06:43
m1cha, on 2014-October-09, 04:35, said:
3 (42.4 %)
2 (38.3 %)
1 (16.6 %)
0 ( 2.7 %)
I would like to see the calculation for this. It seems very hard to believe, when you allow that P has also shown at least 3 (maybe at least 4, depending on exact agreements) ♦s. I don't know how to do the sum, but he has five cards to draw (subject to those contraints) from an available 7♦s, 10♣s and 8♥s. Naively, I would expect marginally fewer than 5/3 ♥s in his hand.
I don't agree with Billw55 that 2♥ has fewer HCP than 2♠, and I think you're right that 2♥ can be on a five card suit and a misfit (what do you do with eg x AQTxx xx Kxxxx? Are you supposed to jump to 3♥?), but the misfit is the key point. You're telling P that the hands probably have no little communication and will have trouble establishing suits. Thus he's very unlikely to bid again with eg a balanced 17-18 count - which is what you want him to do here.
#23
Posted 2014-October-09, 09:01
#24
Posted 2014-October-09, 09:13
m1cha, on 2014-October-09, 04:35, said:
Remind me to not play poker against m1cha, because his guesses are much too good for me. Here is the full hand:
Since the "system" requires that partner pass a 2♥ bid (because of the high risk that my weak hand with a long ♥ suit is a likely misfit), he saluted like a loyal trooper and passed as commanded (thereby locking us into a serious misfit). I managed to take 6 tricks for a score of -100 (-5.5 IMPs). Several Norths were plus in 1 or 2 or 3♠, 2 pairs took 10 tricks in ♦, and 3 N-S pairs took 9 tricks in NT.
I am not sure, but I think the fine print in the "system" contract may have been changed during my absence from the game over two decades. I do not remember from my years of playing money bridge in the 1980s having a system that focused on stopping abruptly at 2♥, instead of allowing a player to look for possible game bids when he has forward going values. I will ask partner for forgiveness from my transgression and also ask that he grant me special dispensation to look for possible game in comparable situations in the future. For example, my 2♥ bid might have had better luck if North's round suits were reversed.
#25
Posted 2014-October-09, 09:25
Jinksy, on 2014-October-09, 06:43, said:
Actually, we're both wrong. Sorry, I was hasty. I applied a calculation I happened to do yesterday for this different purpose but that calculation did not take account of the fact that less ♥ cards than ♣s or ♦s are available to the players. Anyway, what I did was: Write down the all hand pattern probabilities for hands with a 5-card suit (from Wikipedia), normalize the probabilities to 100 %. For 3 cards then, add up the normalized probabilities for all patterns containing 3 cards (multiplied with 2 if the pattern has two 3-card suits). Do the same for all other numbers of cards, you should get a total sum of 300 %. Then remove the numbers for 4 or more cards (for if the player had 4 ♥s, he would bid 2♥ rather than 2♦) and renormalize again to 100 %. That is how the numbers were generated.
Let me try an approximate correction of the numbers. They were generated assuming 28 cards in even distribution, that is 28/3 cards per suit, but actually only 8 ♥ cards are available, so the numbers before the probability values must be multiplied with 24/28. That makes a probability of 42 % for 2.57 ♥cards, for instance. This is obviously not a very useful value because the number of cards should be a whole number but unfortunately this is all I can offer in a short time.
Your approach will not work either, I'm afraid. Your figures would be too low because you overestimate the number of ♦ cards. You would get very few patterns with just 3 ♦ cards in the N hand. You should distribute cards first, then remove the invalid patterns.
I'm sure the math can be done correctly but I cannot do it in a short time. Sorry to all.
#26
Posted 2014-October-09, 10:03
PS: If your ♥10 had been the ♥J, would you have bid 2♥ over 1♠?
#27
Posted 2014-October-09, 10:03
After all people do this over 2♣ rebid using Bart convention (though can show both 5 cd heart and 6cd heart over 2♣), so why not over 2♦? As a passed hand I think it's even better to do this as you cut out a ton of the weak 2 6cd heart hands even if there are some bad suits you wouldn't open.
#28
Posted 2014-October-09, 10:21
fourdad, on 2014-October-09, 04:05, said:
While I agree that this probably isn't a very good agreement, I'm not sure I understand why it is responsible for the problem. How would the choice between 2♥ and 2♠ (or anything else) differ if partner didn't have to bid over 1NT? Or are you saying you would not have bid 1NT without the agreement that it is F?
#29
Posted 2014-October-09, 10:26
WellSpyder, on 2014-October-09, 10:21, said:
1nt being non-forcing makes 2♥ less attractive because it cuts out a bunch of hands of 5332 shape where hearts rates to do well.
#31
Posted 2014-October-10, 17:39
Bbradley62, on 2014-October-08, 15:00, said:
Edit: Seriously? Within an hour of my post someone voted for 2♥??
In my partnership I would (er could) bid 2♥ too. Opener is not supposed to pass with a stiff and it's a matchpoint oriented agreement. Granted with the actual major suits this is a clear 2♠ bid.
What is baby oil made of?
#32
Posted 2014-October-10, 22:07
#33
Posted 2014-October-11, 02:36
To some extent it is a matter of style, but 2h showing 5+ makes sense to me.
#34
Posted 2014-October-11, 02:49
Players pre-empting then bidding again opposite a passing partner.
Players making a TO double then getting highly excited on a minimum just because he has 4 card support for partner's one level response.
Making a one level response to a TO double despite holding 8+ points (this and the last one tend to cancel each other out).
Opening 2C and forcing to slam opposite a partner who has nothing but minimum bids.
Plus lots of cases where one partner makes a unilateral decision, such as pulling a penalty double, when they have already shown their hand and they know nothing about their partner's.