prinsallan: A very famous swindle game, with comments found here: http://query.nytimes.com/gst/fullpa...
Here's a little of the above page: After 13 ... N-Q2; 14 P-KR3, B-R4; 15 B-K4, Shirazi should have played 15 ... R-B1; 16 P-QR4, P-QR3; 17 Q-Q3, B-N3, with only a slight superiority for White. Instead, he carelessly played 15 ... Q-B2? (Marshall occasionally nodded, too) and was struck by 16 BxPch!
Since 16 ... KxB; 17 N-N5ch, K-N3; 18 P-N4 is very strong for White, Shirazi had to acquiesce in the loss of a pawn with 16 ... K-R1.
Before Black could get an attack going, DeFirmian forced a relaxation of the tension with 20 N-N5! The upshot, after 25 ... B-Q3, was that Shirazi was a pawn down with nothing to show for it.
After 26 QxKP, he could not play 26 ... RxP?, which would have allowed 27 Q-R4ch. And since there was no chance to save the game by mincing play, he threw everything, with 26 ... Q-B2, into the sort of wide-open tactical game that Marshall loved.
After 27 QxP, Q-N3, DeFirmian's objective was to consolidate his great material advantage. He could have accomplished this with 28 R-N2! because 28 ... R-K1 can be answered by 29 B-Q2!, but not by 29 B-K3?!, RxB!; 30 PxR, Q-N6!, which forces White to take perpetual check with 31 Q-K8ch, K-R2; 32 Q-R5ch, K-N1; 33 Q-K8ch, and so on.
Instead, he played 28 RxP? and permitted 28 ... RxP. He thought to bail out with 29 Q-R8ch, R-B1; 30 R-N5, but Shirazi unleashed the marvelous Marshall masher, 30 ... Q-K5!, and the game was over.
Since 31 QxQ allows 31 ... R-B8mate, DeFirmian gave up...