How to play this slam?

[twcho]

[hv=pc=n&s=saj5hq32d98cak932&n=s9hakj84dakt42cjt]133|200[/hv]Spingold R16

South opened 1N and after a transfer sequence became declarer in 6♥. West led ♥10. Plan your play.

[manudude03]

Pull trumps ending in dummy and run the ♣J. It makes as long as trumps aren't 5-0 or clubs 5-1 with ♣Q offside (and they find the spade switch)

[gnasher]

Pull trumps ending in dummy and run the ♣J. It makes as long as trumps aren't 5-0 or clubs 5-1 with ♣Q offside (and they find the spade switch)

An improvement is to draw only two rounds of trumps, keeping ♥Q, before running ♣J. That gains when LHO has five clubs and three hearts.

[manudude03]

deleted, just realised we're both screwed in that case.

[gnasher]

A different (and better) improvement is to cash all five trumps (throwing a diamond and a spade) before running the clubs. LHO wins and returns a spade. When we cash the clubs from the top, finding someone with five, that may squeeze the other hand in spades and diamonds.

 

In fact, there may be a rather unusual double squeeze. Suppose that West has xxx xx Qxx Qxxxx. He has to keep the clubs, and he has to keep a spade exit. Hence he has to unguard diamonds. Now when West exits with a spade, we cash the clubs, and East is squeezed in spades and diamonds. So it's a double squeeze where one player is squeezed without the count, and the other with the count.