I must be dreaming or something.
I thought Skyfish was one of the most trustful players here, so I can't take all of this for granted before he has recognized it. There surely must be something that you overlooked, but I can't tell what.
As for my game vs him, I deleted all the save files from my hard drive, since the game was completed. I don't know for him. I still think he didn't cheat in our game (and thus deserves a great victory), but maybe he did ? I am not a known great player here, so I don't think he was tempted to cheat vs me. I would ask you to keep his victory until it was proved he cheated vs me (how ? dunno).
I hope it's just a misunderstanding, and I hope Skyfish will be around again. Just consider the time he took for Civ here, and you'll know he's a great player and mate. (and yes I'm always kind to people
)