Asthix
Prognosticator
Patch j, getting a repeatable crash at the end of the turn, just hit "Enter" and wait. It'll take a few minutes, because it's late in the game (Turn 608) on a Huge map with 17 civs (started with 19).
The crash will happen after you hear the sounds of spellcasting, I think some kind of a summon, so might be related to the Tiger bug, I don't know.
My friend had a game almost the same (huge map, turn 637) we assumed it was the tiger bug but it was patch g (which we play for the boats) and so didn't post it.