It's been a long time since I gave up personal team game against GIB. Yesterday I had some time to kill, so I tried again.
I know "it would come", and I was not disappointed.
What would you do holding THREE ACES against a 5 level contract?
An average player would woodenly pull three Aces on the table.
An expert pair would, after cashing two Aces, noticing partner's lowest suit preference spot, underlead from AK, to get a spade ruff. Unfortunately, looking at dummy's stiff spade, there would be no spade ruff, so an expert would cash Aces like little old lady.
Not so for GIB!
After cashing two major Aces, GIB chose to continue hearts and it's gone.
I know, because of the preemptive 4C, GIB played me for 5 clubs. It "knew" that clubs would not be cashing.
But, It cost nothing to do so. Any human, with no brain, would try the third Ace since there is no other logic attractive option.
But you are playing with GIB.