screen grab of text from the article:
By game 17, Fischer was three points ahead with only eight games left, so that his draw with the black pieces was a good result. The game did have two special moments, one at the start and the other at the end.
For the first and only time in his competitive career, Fischer defended with the Pirc Defence 1 e4 d6, named after a Yugoslav and Slovenian grandmaster. Why the choice? The most likely reason is as a “thank you” to Lubosh Kavalek, the Czech GM who had become Fischer’s chief aide since he broke with his original second William Lombardy earlier in the match. Kavalek often used the Pirc and the similar Modern Defence 1 e4 g6 in his own games.
Twenty years later, Kavalek also helped Nigel Short for part of his world-title campaign, which included a match victory against Anatoly Karpov, before the Englishman lost the championship series to Garry Kasparov in London in 1993.
Fischer was well prepared, and assessed correctly that after his 21...Qe5! the closed position and his well-centralised knight would give him a level game despite his nominal deficit of knight and pawn for rook.
Spassky may have overlooked the threefold repetition of position at the end of the game. He was reported to have appeared startled when Fischer went to arbiter Schmid to claim a draw after 45 R1c2, announcing that his next move would be 45...Re1. The first occurrence had been before the adjournment, so could easily be missed. However, the Stockfish chess engine gives White less than half a pawn advantage at that point.
The entire episode confirms that Fischer v Spassky 1972 was a pivotal moment in chess history, at least in the USA and Europe, which is unlikely ever to be repeated.
the great Leonard Barden, reporting for the FT, manages to slip in a few hundred words about the game after covering the auction (the scoresheets were estimated to sell for for (£5,000-£7,000)