First off are we not playing RCK, but just showing aces? My partner bid 5H?
Well, the Jack of clubs scares me. Why not a heart, a diamond? Surely LHO has a lot of clubs, let say 6 cards, RHO is short. LHO also doesn''t have lots of trump, because there has to be a change for RHO to ruff. How is LHO going to get it??? He either has the K of spades or he was hoping to get a ruff off the top.
Assume the spades are split LHO=KX RHO=xx. Now what? I'd take the ace and lead a spade, and I don't see any sort of squeeze since North will pitch before RHO. End play seems out, since LHO should have three hearts.
So my contrustion is
While I guess it about 60% to 40% the LHO has the K of spades, because of the lead and change for Kxx on the left (vacant spaces), I'm going to play for the end position were AT of diamonds opposit J of hearts and little diamond. This Rquires LHO not to play a diamond after the ace of spades and a spade. RHO will be left with KQ of diamonds and the Q of heart when having to follow to the last spade/club. Since they have a defence I should decrease the odds on this play which was 60% to 40%, but maybe its still better then the finess.
West North East South
- 1♣ 1NT 2♠
Pass 4♠ Pass 4NT
Pass 5♥ Pass 6♠
Pass Pass Pass
Opening Leas CLUB JACK