[Gpm_bg]

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Opener is E : with different kind of bids 1♣Strong or 1♠2/1,sayc and etc.
IN the game i was playing in the bids were :

E S W N
1♠ 2♦ X pas
3♣ 3♦ 3♠ pas
And they can go to slam level or to finish just to 4♠

The lead was 7th on strong ♦ card, K♦ won, but not understand signal for probably void in partner and back J♦

What is your mind about that kind lead : Killing or mostly or suicide


The slam is almost undisputable if lead is from N

[Trumpace]

The lead of the low diamond from Axxxxxx is good or bad would depend on the bidding. If E/W have shown the possession of ♥A it might be considered a good lead against 6S.

Wouldn't a Lightener double be useful if North is the opening leader?

Anyway, not sure why the experts haven't responded yet...

[EricK]

If you are sure that you do not have two tricks on "normal" defense, but you do if partner has the ♦K, then the underlead of the Ace costs practically nothing (at IMPS anyway) with a very large potential upside.

The defense would have been easier to find if North had scraped up a ♦ raise, but that is not everyone's style (nor is a 2♦ overcall with the South hand, for that matter)

[Gpm_bg]

sometimes when decalarer is not familiar with styles of leading on defense pair, is normal to risk with under Ace lead.
leading under Ace is not definetly wrong, usually appear question suddenly : to cover or not, to jump with K or not