gnasher, on 2015-February-18, 06:19, said:
It was a ten-card ending, wasn't it? But anyway, yes you're right. Well, not about what constitutes a serious error, but about the double-dummy chances of making.
Interestingly you do have some sort of nosittej squeeze if North began with the king of clubs and two other clubs higher than the seven. Then I think it cannot be defended after the initial lead. If you change South's club pips in the previous diagram to JT5xx then the discard of the king of clubs fails. Both double-dummy and single dummy ... Dummy exits with a spade and both the crocodile and non-crocodile fail and I think, as we are on terminology, that is a Morton's fork on North.