Grandmaster Alex Yermolinsky shares his greatest chess preparation (up to that point) from the early 1980s with games against Alexsander Shashin.
2022.11.17
Alex Yermolinsky vs. Alexsander Shashin, 1980: E98 King’s Indian, orthodox, Aronin-Taimanov, 9.Ne1
https://www.365chess.com/game.php?back=1&gid=2305444
Yermolinsky vs. Shashin, 1981: E98 King’s Indian, orthodox, Aronin-Taimanov, 9.Ne1