|twinlark: A leisurely look through this game with an abacus at my side confirms how well played this was. It needed a better player than Postny to thwart Polgár's ambition in this game. |
Here's the critical point of the game, after <48. Kd4>:
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Smells like zugzwang...except it's not. Black covers the vulnerable f7 pawn with <48...Bd7>, which is understandable, except it loses. He had to sac his f7 pawn with <48...Bc6> and take possession of the h1-a8 diagonal, keeping the king out of d5 and b5:
<48...Bc6 49. Rxf7 Bg2> and White can't make any headway.
After Black plays <48...Bd7?>, White slips up with <49. Ra7> which allows Black to set up the aforementioned blockade with <49...Bc6>, but Black missed his last opportunity to save the game and played <49...Kc8?>.
White pounced with <50. Bd6> and finished the job.