[Codo]

You play a team Match against well known opponents, which are as good (or bad) as you are.

As West you hold:

Scoring: IMP

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The bidding proceed with
North East South West
1 ♦ pass 1 ♥ 2 ♠
pass 4 ♠ 6 ♦ pass
pass

If you don´t agree with the first pass or the 4 Spade bid, comments are welcomed.
But now, what to do? Bid 6 Spade, pass or double?
BTW there is no special definiton for the double, Pds pass just denied the wish for a Heart lead and his 2 Spade bid was a weak two.

[whereagles]

It's a bidder's game, so I'll try 6♠ now. The real problem will come if they bid 7♦!

[FrancesHinden]

Double is insane. I wouldn't save, but obviously it could be right.
Declarer has clearly made a guess, and I don't like being on the side that makes the last guess. They could be making anything from 10 to 13 tricks in diamonds.

Also, depending a bit on our style of weak two, 6Sx is unlikely to be better than -800 if their slam is making, so if it's only 50/50 whether it's making I should pass.

(By the way, the auction appears to be set up so that we made the weak jump, not partner.)