[jocdelevat]

Scoring: IMP

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West North East South

 -     Pass  1NT   Pass
 2♣    Pass  2♦    Pass
 3♠    Pass  4♠    Pass
 4NT   Pass  5♥!   Pass
 5NT   Pass  Pass  Pass
 
I was east in a teammatch against a good advanced pair and my pard level expert.
I recognize that after my 2d the rest of my pard bids i didn't understand.
I made a big mistake by not responding to his kings asking. I made 5nt and the other table made 3nt +2 however we mised slam, i got my pard a bit upset and bad comment from op.
1.can you please say the corect biding and the mistakes by east and west.
2.did west really need it to know where is the other king?
3.How do you balance between your judgement and "the trust your partner" thing.
4.One of the opps made a comment to put me in a bad spot(which was not necesary. I was the weak player at table) which he always do. I responded before to him however here in bbo I avoid to do it. How do you respond to those kind of opps.

[han]

West showed 5-4 in the majors, so east should bid 3NT, not 4S. Not only do I not have a spade fit, but almost all of my cards are in the majors.

West might still bid 4D, looking for the best game (or slam) and then I'd bid 5D with the east hand even though I have such good diamonds. KQ10 opposite partners known shortnesss is a bad holding for slam.

Instead of bidding 4NT after 4S it would be better for west to bid 5D instead of 4NT if you play this as natural (patterning out). That would allow north to evaulate. Asking for aces when you have a void is rarely the best way to look for slam.