robert2734, on 2016-May-05, 15:18, said:
If the lead is fourth best it is from a five card suit ♣ J9875. There could be a squeeze. It's hard to say who is guarding what. Cash ♠ AK and continue a third spade. If they split 3-3 you're home. If west has 4 spades to go with 5 clubs, you'll squeeze east in the red suits. If east has four spades, he can't lead a club so you have time to duck a heart. Either the hearts will split 3-3 or maybe the guy with four hearts has to guard clubs or diamonds. Or you could have a double squeeze where nobody can hold three rounds of diamonds.
There seem to be various squeeze possibilities and in fact an imperfect one developed. If I play AK and another spade E is in, has another spade, and presumably cashes it. I will have to find a discard. If I want to duck a heart hoping for 3-3, I can't throw a heart. If I pitch a club I give up any hope of a double squeeze since that club was my threat. And if I pitch a diamond then a diamond play after the spade cash uses my last diamond entry so I have to cash diamonds now. Of course W has to be pitching on these two spades as well.
I think it is tricky. I ducked a spade, a club came back, E throwing a diamond. I cashed the spade AK, E started with four. I led a club, W took both his clubs. I think I am down if he doesn't. e was 4-4 in the majors and their clubs plus my high diamonds squeezed him, the 4th spade still on the board and the third heart still in my hand.
I was thinking it might have been better to play a spade to my hand and then lead the club K. I don't really mind if they later take the other two clubs, and E has to find a discard.
Steve is right that Gib gets to see all of the hands, and gets to run computer simulations as well. It seems that I am likely to be able to make this against most distributions, but what works against one distribution might not against other distributions.
i am uncertain about the percentage line. I think it helped that we were playing speedball.