foo, on May 21 2006, 12:27 PM, said:
Even if the odds of 9+ were 2x higher (and that is extremely unlikely), you should not invite in this situation. If you are playing the odds, then the average 8 HCP containing a 5 card suit Responder should never invite opposite the average 1N= 15-17 opening. Never. At any colors or form of scoring.
(edited from later post)
[Danny Kleinman in _The NoTrump Zone_ not only mentions that average 8 HCP hands with a 5card suit should not invite opposite 1N= 15-17, he also mentions that he got the error on this point in the 5th ed of the Encyclopedia changed for the 6th ed.
Foo, you are missing the point entirely. Nobody here is saying (at least I dont think they are) that you should invite with the
"average" eight count, as you keep referring to.
Instead we (or at least I am) are saying that
if you are going to invite, it is better to just bid game directly.
Please note.....there
IS a difference. A big difference.
If you have a hand
that is going to invite anyways, the extra Jack that partner may or may not have is unliikely to make much of a difference in the result on the board.
Look at the following examples and their possible outcomes, First lets deal with the direct 3N bids and their possible outcomes:
1) You bid 3N direct. It always makes. Average plus or better.
2) You bid 3N direct. It always goes down. You get below average on the board, but not a complete zero as others will either invite and have it accepted or bid 3N directly as well.
3) You bid 3N through invitational sequence. It makes. Your chances of cold top on the board are decreased because of the invitational sequence, but the board should still score much better than average.
4) You bid 3N through invitational sequence. It goes down as a result of abnormal defense due to invitational sequence but would likely have made on direct 3N. (You're minus when you should have been plus).
You originally would have won or tied the board in 3 out of 4 cases by bidding 3N directly, but now always lose in case 4 and reduce your chances of winning in case 3 as well. Case 2 was the only originally losing case. You effectively convert 2 of your 3 original winning options into possible or probable losing ones.
Now deal with hands where invite is made, and declined:
5) You invite and its declined. You would have made two no matter what. Board is probably average.
6) You invite and its declined. You make 3 (or more), no matter what the defense does. What should have been well above average (by direct 3N) is no more than average and quite possibly average minus, since others may accept.
7) You invite and its declined. You go down one (or more) regardless of defense. This board is average minus at best.
8) You invite and its declined. You go down 1 due to invitational sequence. You would have made two (or three) if not for the invitational sequence. You lose the board. Since others may or may not invite, the board is average minus at best.
9) You invite and its declined. You go down more than 1 due to invitational sequence. You lose board entirely (except for those in 3N going down more).
In all of these cases(#5-8), the invite breaks even in one case (#5), and loses (or rates to lose) in all the rest.
Did I miss any? Oh yes. I did forget a couple. The case where you dont invite and opp balances. Now you are almost always losing the board, if their balancing bid makes and you have no shot at making 2N/3N any longer, but if you had bid 3N directly, you would have been -1 or 2 (at favorable) winning the board for -100 against their likely 110. (Alternatively, you may win the board, but only if your side can whack whatever they bid).
All I can say is I know what works for me, and has for 15+ years. I will give another example and let you decide what to do:
Do you pass? Do you invite through stayman (your partner will deny a major and pass 2N if you do)? Or do you bite the bullet and bid 3N?
Heck, put it up as a poll if you wish.