MrAce, on 2011-January-02, 12:19, said:
Rainer, after i read this last reply, i am afraid i have to agree with Fluffy about inconsistency. Eventhough i agree with some of the stuff u wrote, You CAN NOT be so picky BOTH on the overcall and response side. It is imps and there is game bonus still, if they didn't change the rules recently.
I can sit and write long lecture about 2 level overcalls, that they can be up to a bad 17 hcp with 6 cards suit. And i can continue the lecture why it is right to start with an overcall instead of double in some hands. It is beyond my imagination to be so shy and passive in imps when u hold 10 hcp and Kx in pd's suit.
You wanna make the overcaller's hand a 6 cards ♥ ? Lets do it, lets even take out some hcps from him and add some shape. ATx AQ9xxx x xxx ATx AQxxxx xx xx . I have hell of a play in 4♥ after RHO opened vs that 10 hcp despite the fact that i gave pd a stiff on my KJxxx suit. And this overcall is not even close to some strong overcalls. What pass are u talking about ?
The modern 2
♥ overcall is wide ranging and I do not doubt that game will be worthwhile if West is top of the range or very suitable for a high level contract. Trouble is, that this is less likely than West being at the low end for an overcall.
I decided to do a simulation, with fairly favorable assumptions about West (e.g.
always more than 5 cards in
♥):
South: Precision club opener as described 11-16 HCP, either at least 6 cards in
♣ or 5 cards in
♣ and a 4 card major.
West: No 5 card
♠ suit, either 6 cards in
♥ and 10 to 17 HCP or 7 cards in
♥ and 10 to 15 HCP. But otherwise West could be very distributional.
North: Less than 4 cards in
♣ (no raise), no further restrictions
1000 random deals, double dummy results with West declarer in a
♥ contract:
4
♥ (or more) would make on 295 deals or 29.5%
3
♥ would make on 618 deals or 61.8%
2
♥ would make on 884 deals or 88.4%
Your chances to make game is around 30%, but of course West will not always guess right when to accept the invitation, not least because some games depend on a favorable layout of the North South cards.
Meanwhile your chances to get a positive score drops from close to 90% to less than 60%, again because West will not always know when
not to accept, not least because of an unfavorable layout of the North South cards.
If you assume that West will accept an invitation of 3
♥ in half the cases (most players tend to accept more frequently), the best you can do in theory is
295 games bid and made
205 times you go down in game
500 times you stop in 3
♥, of which
118 times 3
♥ makes
382 times you will go down in 3
♥
So bidding on would mean you bid 295 games but you will get a minus score 587 times instead of 116 times, that is 471 more minus scores and on the remaining 116 minus deals you go down more, which also means you are much more likely to get doubled. This is theory, the practical decision will likely be worse.
I guess bidding 3
♥ looks okay, but even vulnerable, it does not look to me a favorite over Pass.
Pass by East is certainly not ridiculous. I still maintain it to be prudent.
Rainer Herrmann