[Lord Molyb]

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North plays 4NT on a spade lead and cashes 3 clubs and 4 spades to get to the following position:

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On the last spade, east discards a diamond but west has no good discard. If he discards a diamond, I'll get two diamond tricks instead of one. If he discards a club, I get a club and a diamond. If he discards the ♥9, I lead a low heart from both hands and either west is endplayed after cashing 2 hearts and a club or east overtakes and establishes an extra heart trick for me. If he discards a high heart, I lead a low heart from both hands and west is again endplayed or east overtakes and establishes a heart for me.

So what is that squeeze called?

[nige1]

Lord Molyb, on 2014-January-11, 08:35, said:

North plays 4NT on a spade lead and cashes 3 clubs and 4 spades to get to the following position:

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On the last spade, east discards a diamond but west has no good discard. If he discards a diamond, I'll get two diamond tricks instead of one. If he discards a club, I get a club, a diamond, and eventually another red-suit trick depending on what he discards. If he discards the ♥9, I lead a low heart from both hands and either west is endplayed after cashing 2 hearts and a club or east overtakes and establishes an extra heart trick for me. If he discards a high heart, I lead a low heart from both hands and west is again endplayed or east overtakes and establishes a heart for me.
So what is that squeeze called?

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This squeeze-strip is an unusual and pretty kind of winkle. This version depends critically on what I call a pivot, for want of a better term. Here, for example, the ♥J plays that crucial role. So I would call this a pivot squeeze. You can replace the ♥T (as on the left) to emphasise the role of the pivot.

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[wanoff]

I would say it's a rare type of bunny squeeze, where the bunny has transferred from defender to declarer by virtue of not playing in a 10cd trump fit.

[nige1]

wanoff, on 2014-January-11, 09:49, said:

I would say it's a rare type of bunny squeeze, where the bunny has transferred from defender to declarer by virtue of not playing in a 10cd trump fit.

OK, pretend the contract is 4♠

[Lord Molyb]

nige1, on 2014-January-11, 10:09, said:

OK, pretend the contract is 4♠

In 4♠ you can just ruff a diamond though, not as fun

[nige1]

Lord Molyb, on 2014-January-11, 13:14, said:

In 4♠ you can just ruff a diamond though, not as fun

Duh OK. Make the South hand-shape 4324

[Lord Molyb]

nige1, on 2014-January-11, 14:09, said:

Duh OK. Make the South hand-shape 4324

In spades you can eliminate the hearts after drawing trump and throw west in with a club

[HighLow21]

Lord Molyb, on 2014-January-11, 08:35, said:

On the last spade, east discards a diamond but west has no good discard. If he discards a diamond, I'll get two diamond tricks instead of one. If he discards a club, I get a club and a diamond. If he discards the ♥9, I lead a low heart from both hands and either west is endplayed after cashing 2 hearts and a club or east overtakes and establishes an extra heart trick for me. If he discards a high heart, I lead a low heart from both hands and west is again endplayed or east overtakes and establishes a heart for me.

So what is that squeeze called?

'Tis a winkle. Terence Reese wrote about them frequently.

[nige1]

Lord Molyb, on 2014-January-11, 14:33, said:

In spades you can eliminate the hearts after drawing trump and throw west in with a club

OK I concede