Chess.com

cool

 Thanks!

I'm heading out on a trip now, but here's what I remember of my analysis:

7...Qf6? was a key mistake. It seems strong, threatening 8...Bxf3 9.Qxf3 Qxf3 10.gxf3 and the counter (8.g4) weakens White's kingside. But Fischer prepared a response even before the game. 8.g4! Bg6 9.d4! Bxe4! (the threat was 10.Bg5, trapping the Black queen) 10.Nbd2 Bg6?! (...Bxf3 would've been better) and now Black is in really bad shape. Still, Fischer's capitalization of these errors is wonderful. 11.Bxc6 bxc6 - Black was a long way from castling on the kingside, and now the option to castle queenside has been eliminated or worsened. 12.dxe5 dxe5 breaking open the center, etc. 18...d5? was also a mistake, contributing to the speedy loss.

Hope that helps. I'll post more when I return on Sunday. :)

 Excellent complement to the ever-lasting Nimzowitsch's theoretical system but ... it is quite a task!... Give us some hint, which moves of Geller deserve a question-mark? It's extremely difficult to find out the errors of a player like Geller and how-why he did these errors. On first sight, you could think that this was a game of a player about 2,000 ELO vs. a 1,700 ELO... That was not Geller's case!!!...

 P. S. Comment a ratings: these 2,780 and 2.455 should be the final ratings of both players... but  2,780 is also the famous Fischer's highest achieved rating... It is more fair to mention Geller's analogous rating also, a child might think that Efim Geller was some chess player!