Critics with their silicon brain crutches love to walk all over the graves of the past greats for being imperfect. These same critics never would have found the clever sacrificial interference Bd6 at move 23 or 26 on their own. Hindsight is their shine, which pales in comparison to original creativity. (FTB is willing to bet that whoever back-in-the-day originally suggested 23.Bd6 did so after seeing that 26.Bd6 was played, and then used that enlightening idea to see that it could have been played sooner. Perhaps it was one of warriors who found the improvement in the post-mortem.)

Most of the great cinema movies that people enjoy contain a production film flub somewhere, but we can still enjoy the show! Put that computer away and watch the story unfold first -- the building up of the position against the parry is the true art form of chess -- and see if you can spot the flub for yourself!

Leaving all the remaining pawns on the kingside would have been drawish. The Black knight would have been in his element one just one side of the board.

White realizes this winning plan on move 39. Thus, about half of the game was committed to it's fruition. Marshall collects two pawns for one on the h-file, leaving himself connected passers protected by the king, and then cleans up the queenside. The realization of this plan and it's execution is outstanding.