RMB1, on 2012-November-19, 18:47, said:
I am not sure I understand. For some class of player, coming down to ♠Hx ♥x opposite ♠x ♥x ♦x is the only (normal) line. The squeeze is not a creative line thought up by directors.
Regardless of the class of player, that's not the only normal line for someone who thinks he already has the rest of the tricks. For a player under this misapprehension, it's a normal line to start cashing the diamonds, planning to throw dummy's major-suit losers.
For us to allow him to make by playing the squeeze, we'd have to accept that he would recount his tricks before playing the third diamond, and then correctly guess that LHO doesn't have Hxxxxx QJx xx Kx. He's not entitled to the benefit of either of these assumptions, let alone both.
There are three lines that lead to going down:
- Cash all five diamonds, without noticing his mistake, throwing dummy's spade losers. Since he plans to throw all of dummy's major-suit losers, it's a normal line to start by throwing the spades.
- Realise his mistake early, and decide to take two spade finesses rather than play the squeeze. That is judging that a hand like QJxx QJx xx Kxxx is more likely than a hand like ?xxxx QJ10x xx Kx.
- Realise his mistake early, start playing the squeeze line, and then change his mind when a spade honour drops offside.
I think that all three of these are normal. It's hard to argue that none of them are.
The third line above leads to two down. Should we rule that he'd do that?