Endgame Riddle: Did Kasparov miss a chance?

Karsten Müller once again sets out to find truth in a famous endgame. This time he looks at the 27th game of the 1st World Championship match between Anatoly Karpov and Garry Kasparov, which is generally regarded as a fine example of Karpov's outstanding technique. But how well did Karpov and Kasparov really play the endgame in this famous game?

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