[Walddk]

Scoring: IMP

S: 5D
Lead: SK

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From the Hungarian Teams Championships on vugraph yesterday. As South you are in a delicate 5♦ on this auction:

2♣ 2♠ double* 4♠
5♦ all pass

* 0-1 control.

West leads ♠K and continues with a spade to East's ace. If you ruff high and cash one top diamond, both opponents follow. Plan the play.

Roland

[maggieb]

I would cash the ♥A, then draw two rounds of trumps ending in dummy, and then play ♥K and another.

[syl]

I ruff (high)+play the ace of trumps.
Suppose they both follow. Small trump to dummy, then:
A) If both follows hearts from top, if nothing interesting happens 3. heart hoping to find heartQ+clubK together, or if LHO won club guess...
If LHO had 3 trumps heartJ from dummy, intending double finess.
C) If RHO has 3 trumps club ace club, hoping KJ or KJx (or Kxx.... and duck) at LHO, and playing for heart drop if no success in clubs.
Assuming hearts are 3-2 (2 on my left) double finessing or just running the jak and playing for drop if covered are equal chances, playing for the drop is slightly superior, the latter helps even when the Q falls from the other side.
The advantege of the double finess is that it caters also DTxx onside-very inprobable if LHO had trump shortness.

[syl]

To be honest trusting in clubs (intending to put the Q in if ducked) helps also when LHO has Kxxx and J drops from the other side.

[Fluffy]

If trumps re 3-1 I will try to find LHO with ♣K and ♣J third (♣A + ♣ to the queen before playing third trump)

If they are 2-2 Lets try an endplay.

[cnszsun]

When lho had only one trump, we could also try endplay.
Play 2nd trump, find that lho had only one trump. then, don't cash last one,
Play 3 hearts, if lho has ♥Qxx and ♣J but not ♣K, he would be endplayed even if rho ruffing 3rd heart won't help. rho could also forget to ruff ♥Q when lho has both ♣K and ♣J.

[szalay]

I was the declarer in this board. And after 1st round of trump had a very difficult time which line to choose. I thought the elimination or combination (try Clubs first, double hook in Hearts if it lost) line are very close and tough to calculate exact odds. (Especially at early morning:-) I had a bit more information than u have: I was at the table.
And I strongly believe that information (LHO is a very good player but isn't professional, could't hide his feeling; I know him very well) is helpful a lot, so thats why I chose the combination line, what is slightly worse than elimation - in armchair.
May be. Or may be not:-)