Letme think loud here...
♦ 4 says west has either 4 or 5
♦, not 6. Ducking
♦ now less atractive to me since west can't have 6 card
♦. Lets assume
♦ are 5-3, we ducked and took 2nd
♦, played 2
♥ and if they duck both we`are in a situation where we can not take
♣ finesse without first cashing the
♦, or we will say bye bye to our
♦ trick and defense has enuf to defeat as 1
♦ that was ducked, 2
♠,1
♥ and 1
♣. (asuming we cant make 6
♣ tricks, or it wld be cold)
So it will all come down to
♣s i think. Playing
♣s too early will also cause some serious discard problems in hand. And best way to play for 6 tricks in
♣ is to cash A or K first since we do not have
♣ T in dummy but hand.
This also is another problem with lack of entries to use
♣s if finesse fails.
I take first
♦, play
♥K,
a-if they take it and play
♦, i can play the % game in
♣ since i have entry,
♣ to A,
♥to J and
♣ finesse
b- if they duck it i will play small
♥ to the Q (they have to take this or i play
♣ to T . If they take the
♥ Q and play another
♦, i will again cash
♣A,
♥ to J and
♣ finesse and go down a lot
Defense has AQ
♠♥A and
♣ if finesse not working anyway in addition to first
♦ being ducked.
I maybe totally dreaming and cant see something in front of my eye at 3 am here.
Also it is important to unblock
♣T in case east drops Q.
1♠ showed 5+, 2♣ showed 5+ (often good) ♣ and GF,
3NT showed 5332 specifically.
LHO leads the 4♦ (4th best from length), RHO plays the Jack.
Your play