Zelandakh, on 2013-February-04, 04:53, said:
But Adam, then South could overcall 2♣ and North has the most obvious 5♣ raise in the world. So only Flannery can save you here.
North has the most obvious what in the what? Not to me.
But my experience is that Flannery does sometimes provide an advantage when a pre-empt by the opponents is in the offing.
Actually, a 2
♣ overcall would help if I and my clone held the EW cards.
After the uncontested 1
♥ -1
♠ -2
♠ I, as East, would worry that my clone, as West, might have raised on three. I would still bid 3
♦ if the opponents stayed out, and as I said earlier, my clone might or might not raise to 4
♠.
But suppose it begins
1
♥-Pass-1
♠-2
♣
Quite possibly this would happen, and now partner's 2
♠ is unequivocally four card support. It's true that if North now raises to 5
♣ I am sort of stuck, but 3
♣ seems more likely to me, after which I make a try with 3
♦ and partner, pleased with his holdings after the club overcall, certainly accepts.
I don't want to say "Surely you are joking" about the 5
♣ bid, but were you? North knows nothing about the heart void in East's hand and might well figure that if East is planning on developing hearts this may not be such a piece of cake for him.
Anyway, in the OP, West showed four spades, five hearts, and 11-15 highs. East jumped to game on an 8 count and a strong, although not yet ready to run, diamond suit. He found a perfectly fitting dummy and the Ace of clubs well placed. This speaks more of his karma than of his conventions.
Btw, we can take six tricks against 5
♣X right? Not that we would, but we could. Ruff a heart, two diamonds, ruff a heart, then a spade shift and wait for two black suit tricks. If North gets to jump to 5
♣. I get to have this defense against it.