[dwar0123]

Tourny hand, so advanced robot. Going down in a cold game due too taking a finesse for an overtrick. Has to be something wrong with the risk vs reward calculations here.

Something like 50% for 480 or -100. vs
~37%(or what ever odds are of jack dropping) chance at 480 or 450.

A 13% better chance at 30 more points vs losing 550, not sure how gib justifies this, matchpoints or not, there are plenty of people not even in game.

EDIT: I Removed spade discard comment out(per Stephen correction).

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[Stephen Tu]

pitching the spade doesn't matter, because you are max 12 tricks as all you can pitch on the fifth spade is the third round diamond which is a winner anyway.

It is weird that it is hooking the ten though. Also weird is that my home PC GIB (at MP, not IMP), also hooks for the J using the GUI, but the command-line GIB always plays for the drop. Does GibSon kick in at the same point when using GUI vs. command-line? GibSon kicked in right at the spade trick using command-line.

Generally tough for the developers to debug play, but it would be interesting if they could figure out what's going on in this one.

[S2000magic]

I'm also curious about the ♦K opening lead. to my (admittedly non-expert) eye, the ♣K appears to be a much better lead.

[dwar0123]

Whoops, didn't pay attention to diamonds, so it always make 5 and 6 if you get spades right. Edited it out, thx