Board & Card Games Asked by Roger Wang on January 4, 2022
I know that when you hold a 6-card minor suit and a really weak hand (such as holding Jxxxxx in the minor and not much else after 1NT opener), you would play some system to transfer into the minor.
However, if you held a stronger hand and no major suit fit, would you prefer a game in NT or the minor (since if the minor suit holding is strong/long enough, you can run it)?
factor into this?
Game in a minor suit requires about 29 high card points as well as an eight card fit, because it is one level higher than game in a major. Most of the time, a hand that can make 5 minor can also make 4 or 5 NT, for more points (important in duplicate). So the following are some "preconditions" for game in a minor.
If partner opens 1NT s/he has 15-17 high card points. No more, no less. You need at least 12-14 points (some of them can be "distributional"), plus an eight card minor suit fit.
It's not easy to find an eight card suit fit over 1NT. The guarantee is if you have six, partner needs at least two for a "balanced" NT bid. If you bid with five, and partner raises, s/he has three or more.
The last item that makes the minor suit preferable is if you have one very weak side suit (a singleton or void, or two weak doubletons). Most 29 hcp partnerships can make 3NT. The exception is if one opposing suit is wide open, with opponents holding A, K, Q, and can take five tricks with a 5-3 distribution before you get your nine. Even if you and partner have a suit of xxx opposite xxx, the opponents' distribution will be "only" 4-3 61% of the time.
So the most likely case if you have 5 or 6 of the minor, are guaranteed an eight card fit, and have 5-4-3-1, 5-4-2-2, 6-3-3-1. 6-3-2-2 (or worse) distribution, and are worried that your weak singleton or doubleton suit is inadequately stopped. That also suggests that some of your "29" points are distributional, and you can't take 10 to 11 NT tricks "off the top" but can take 11 tricks by ruffing suits in which you are short and partner is weak.
Answered by Tom Au on January 4, 2022
This does depend on the scoring method somewhat as well as the cards, but "almost never".
Hamman's rule: "If you have a choice of reasonable bids and one of them is 3NT, then bid it." You never want to play 5m instead of 3NT. Sometimes you have to, however. It should be obvious from your hand (though less so after a strong NT opener, definitely not obvious from a 2NT opener).
The same things apply as deciding to play 3m instead of 1NT:
The fact that you have zero losers in some other suit because you're void doesn't really matter as much if partner has it stopped and your suit runs - you have two more tricks you can afford to lose in 3NT than at the 5 level. Of course if it's not going to run, theirs is...
But really, the big time to play 5m instead of 3NT is "tried for 6 and had to stop." Note that again, it's "don't want to be there, but have to."
Now, none of that depends on the scoring method. So why did I mention it first? Because matchpoints.
If you can take 11 or 12 tricks in a minor suit, the chance of taking 10 or 11 in 3NT is quite high. If you're playing IMP scoring, or rubber, then the difference between 5m making and 3NT making is tiny (zero, or -1 or 2 IMPs (30 or 60 points above the line) if 3NT made overtricks). If you're in a matchpoint game, though, while 5m= ties 3NT=, even 5m+1 loses to 3NT+any. The only time you win at matchpoints by playing in the minor is when 3NT fails.
There's a line that is often said as a joke, but it's not wrong: "At matchpoints, 5m is an invitation to 6" - because if you're booked for a poor score anyway for playing in the minor, the upside of bidding 6 (below average -> top) when it makes is much larger than the downside of bidding 6 when it doesn't (below average -> bottom).
There's another comment that fits this discussion: "At matchpoints, play the highest scoring contract. At IMPs, play the safest contract." If you can't tell which one's safer, almost certainly 3NT is.
Long answer shortish: over 1NT, only plan on 5m instead of 3NT if it's obviously right. Over 2NT, you never want to play in 5m. If you look for slam and are off two keycards, sure, stop in 5m, but you're not getting a good (matchpoint) score.
Answered by Mycroft on January 4, 2022
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