pescetom, on 2023-May-15, 08:15, said:
And West would be able to signal a suit preference too, although its superfluous in this case.
East is a promising beginner, so he's allowed to make an unusual mistake; I was just curious if there was some reasoning to picture a spades void that he rightly made and I am missing.
I can’t think of any reason to expect a spade void rather than a diamond void.
I can think of several reasons not to choose a spade rather than a diamond.
If west has only one heart, we need him to hold a void for spades to work but a diamond works if he has either a void or a stiff.
The odds of his having a stiff and a void must be far lower than two stiffs
If he has two hearts, we don’t need him to hold a void in the suit we lead..a stiff will do as well.
But if he has two hearts and a doubleton in the suit we choose then leading diamonds may get him a ruff when the suit breaks 3=3 in the opps’s hands. That’s not true in spades
Finally, it’s possible that partner can’t get a ruff but that the opps hands are, to some degree, mirrored.
Say north is 4=6=2=1 and south 3=5=3=2 and north holds the spade Jack. Partner has something like x x xxx KQJxxxxx
(This would be consistent with north passing initially, since some players won’t open 2M with four cards, especially say KJxx, in the other major)
A spade lead gives away the contract. A diamond lead doesn’t
I can’t, on just a few minute’s thought, come up with any similar argument for a spade lead rather than a diamond.
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