Answers: (Material considered advanced (and confusing) for some novices is in blue.)
1.
Hint: How many tricks will your hand provide in notrump? How many tricks might your hand provide in a trump suit?
Unless partner has very good clubs plus a small one to run your suit, this hand will be worthless in notrump. With clubs as trump, your hand will take some club tricks, and will also have several trump entries to be able to lead from your hand to finesse if needed. Bid 2C.
A couple of clarifications:
(a) 2C is a new suit by responder! Won't partner bid again?
Partner's 1NT bid made you the captain. In most auctions where somebody bids notrump, new suits by responder aren't forcing, but suggesting a place to play. (If you don't play Transfers, and partner opens 1NT and you bid 2S, it is weak and to play. If it weren't for the Stayman convention, 2C would have the same meaning.)
Partner's bid was so descriptive that you should have a good idea of the best place to play. Your 2C bid simply says that this is the best place to play, and partner should respect that decision.
(b) Won't partner think 2C is Stayman?
Stayman is over opening notrump bids (2C-2D-2NT is treated as an opening notrump bid), and by agreement, directly over notrump overcalls. Some
very advanced partnerships might agree to use Stayman in other spots, but do not assume Stayman over a rebid.
Also, if your long suit was hearts, you would just bid 2H. Transfers do not apply over rebids either [
except by partnership agreement in very advanced partnerships.] In fact, if partner thinks 2D is a transfer to hearts, you won't be able to make the correct call on problem 3 where you want to play 2D.
2.
Hint: Do you have the strength for game? If so, which one?
Answer: You have about 8 points (I'm counting a point for the good five-card suit) and partner has 18-19. You have the points for game and you have no major suit fit, and likely not enough strength to make 5C. Bid 3NT.
bravejason, on 2016-October-17, 10:32, said:
My first instinct for each hand was pass because I kept thinking of the 1NT re-bid as weak.
Unfortunately your partners may think the same thing. However, on BBO you will be playing with some strong players and I would hope most of them would know what 1NT shows. Also, I don't think you'll be a novice very long (by my own definition, you've already passed that designation.)
Zelandakh, on 2016-October-18, 09:07, said:
There is another possibility here that you might not have considered. Whether you should or not depends to some extent on whether the 1NT rebid shows, as given in the OP; just a hand that would have rebid 2NT over a 1 over 1 response or also has some minimum standards for the spade suit.
Since this is in the N/B forum and intended for novices, I am quite happy with an answer that gets to game with 26 points. [
I believe that Zelandakh is saying that while you have 26-27 points, if partner has spades single stopped, you are in danger of losing four spade tricks and another trick in 3NT before you take nine tricks. As the meaning of a jump to 3C is nebulous, I have to think that Zelandakh is suggesting that this hand make a cue bid of 2S to say "We have enough points for game, but I am worried about losing too many tricks, so please avoid notrump unless you have two potential spade stoppers or reason to believe we can take 9 tricks as soon as we get in. While I would expect this message to be received by a top player, I would not try this at home - I wouldn't be surprised if you get to play 2S! There is also the problem of sorting out the trump suit when partner shies away from notrump; if partner has a doubleton club, your final 5-2 may not be any better than 3NT; and even when partner is 3-3-4-3, it's hard to stop in 3C without firm agreements. As for an immediate jump to 3C to show this hand, I think that undiscussed, even experts will misunderstand, some will think 3C is forcing while others will think it's invitational.]
3.
Hint: In what reasonable contract would your hand provide tricks?
Answer: Unlike in problem 1, your hand has some potential for a trick in notrump with the fourth diamond. However, 1NT is no bargain with the opponents leading their long spades and your zero points opposite partner's 18-19. Your diamonds will do much more good if they are trump. First, they will stop the run of the opponents' spades. Second, even though West may be overruffing your spade ruffs, in many cases, he will be trumping with a trump trick he was entitled to, meaning that your partner gained a trick by trumping a spade loser in your hand.
You will have an eight card diamond fit unless partner is precisely 4-4-3-2. I suggest you bid 2D. Again, since partner has made a very descriptive bid, our 2D bid just places the contract and does not show any values. Partner should know you don't have values; you could have raised to 2D right over the 1S overcall with six points and four diamonds.
4.
Hint: Do you have the strength for game?
Partner has 18-19 points; you have 6. We try not to bid game when we have
at most 25 points and could have less. Notrump looks like the best spot here, and the best way to play a partscore in notrump is to pass.
Think of it this way: without the overcall, you would have responded 1NT. Partner would have invited with 2NT showing 18-19 balanced. Would you bid game? Of course not, you can't be any weaker for your earlier bidding and sometimes an invitation should be declined.
Zelandakh, on 2016-October-18, 09:07, said:
Could you see your way to game if partner opened a light 2NT showing 19+-20hcp? Can you think of a way of finding out whether partner is in the 18-19 range or has 19-20?
[
I think that if partner has a balanced 20 they should have opened 2NT. Note that if you invite with 2NT and partner passes, you are playing 2NT instead of 1NT and the opponents are leading their long spade suit. If partner has spades single stopped, it wouldn't be unusual to see the opponents win four spades and two other tricks; after all, you don't have a great source or tricks here.]
NOTE: These "novice" problem threads may be moving to the Intermediate/Advanced forum as they are likely more appropriate for intermediate players than for true novices. If you have any input on this, let me know.