Posted 2008-January-29, 12:49
Nobody so far has analyzed our falsecard from the pov of LHO. As I will show, this is important.
Consider LHO holding 6 spades: this gives LHO a stiff and, obviously, we are getting beat on a ruff if LHO continues.
And she can work this out.
If RHO plays the 2, then she knows that the 3 is missing and that either he has A32 and played the 2 (not!) or that we have made an imaginative falsecard and he is ruffing the next spade... either way, she leads the spade (not the Q, because she wants him to win the Ace if he holds it)
If RHO plays a spot higher than the 2, then she knows that either he has X3 doubleton or we have falsecarded, and, either way, she can continue a spade and down we go.
So if LHO has 6 spades, the J cannot gain.
If LHO has 5 spades?
Now RHO has 2. This means that he will have played a spot higher than the 3 at trick one... to show 2 cards. In turn, this means that, from leader's pov, there are 2 cards missing below partner's spot: the 3 and his low one.
So she will KNOW than he doesn't have xxx. She will KNOW that if he has xx, we have AJx.
However, there is one remaining possibility where the J may win. She may place her partner with Axx and us with Jx... and so she may continue.
And she may well hold diamonds such that she can't afford (or thinks she can't afford) to lead the Q, to hold the second trick, because she wants her partner to win the Ace and lead a diamond through.
So, on balance, I lean towards the J play at trick one, but I surely don't do that if RHO played the 2... because, as set out above, that gives LHO an easy continuation.
BTW, as I am sure all appreciate, the J must be played in tempo to be effective.
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari