FelicityR, on 2020-July-26, 06:38, said:
I enjoy reading your comments on this forum, David, but if the opponents do bid 7♥ - unlikely vulnerable, but this is an extremely distributional hand so anything presumably can happen - partner will not have any direction what to lead if you end up as defenders. And a Lightner Double could well be interpreted the wrong way, too, partner leading ♦s (for a non-existent ruff) instead of ♣s. At least mentioning the ♣s en route to 6♠ takes the confusion away, I feel.
I hope the club ace comes in even if it is not lead. Without a club void on their side for some ruffs they need a distribution even more extreme than yours to make 13 tricks with only red suits. Don't forget that partner failed to make a fitbid with 4
♦, and if both opponents have similar diamond length there won't be much opportunity for club discards. Also, for all we know clubs could be 3-3-2 around the table.
I think an agreement that 6
♣ here is more lead-directing than for takeout might be very good, unfortunately it is not what I have agreed on with my partner. The possible swing of missing a cheap double-fit sacrifice is nothing to scoff at either.
That being said, I think you might be right. My dream continuation would be to bid 6
♣ this round and 6
♠ next round (the opponents can make some noise with 6
♥ if they want), my main concern was that they might get to 7
♥ before the bidding gets back to me. But the only sequence where there is serious ambiguity is 6
♣-(7
♥)-?, where partner has to bid 7
♠ with some club holding (lesser risk). After something like 6
♣-(6
♦/
♥)-P/6
♠-(7
♥)-? there is more room. I think double should still show a diamond void, and pass
does allow partner to take this out to 7
♠, but since partner got to show some shape and strength on the previous round they might pass and lead a club instead, reasoning that there is little left to mention.
All in all I think the risk of partner enthusiastically bidding 7
♠ is very real. It is simply not clear to me whether a lead-directing 6
♣ bid is worth the risk, as I said the ace is likely to come in anyway.
Stephen Tu "My opponent faced this problem: IMPS, knockout. What's your call, and why?"
++++++++++++++++++++
I rank
1. 6♠ = NAT Leaving little room for opponents to decide whether to sacrifice,
2. 5♠ = NAT When opponents bid 6♥, we can "sacrifice".
3. 6♣ = NAT Even if partner cue-bids a red ace, can we risk a grand? Akwoo is right, however, that we might need a ♣ lead to defeat 7♥.