The 1992 Fischer-Spassky match was a race to ten wins; if tied at 9, the match would be abandoned as “undecided”. After four games both players had one win; Fischer opted for “Spanish Torture”, improving on move 18 in a position where he strayed badly in game 3. Spassky defended an inferior position well, and a series of slips by Fischer allowed 25… f5!! which turned the tide towards Black.
The ensuing fireworks produced an extra rook for Spassky, giving him a 2-1 lead in the match; in the postgame press conference he said “I may be an old lion, but don’t put your head in my mouth, or I’ll bite it off.”



links to the series
Part I: Spassky-Bronstein 1960 https://www.ibrattleboro.com/living/recreation-sports/2025/02/the-games-of-boris-spassky-part-i/
Part II: Spassky-Petrosian 1969 https://www.ibrattleboro.com/living/recreation-sports/2025/03/the-games-of-boris-spassky-part-ii/
Part III: Fischer-Spassky 1972 https://www.ibrattleboro.com/living/recreation-sports/2025/03/the-games-of-boris-spassky-part-iii-match-of-the-century-game-11/
Part IV: Andruet-Spassky 1988 https://www.ibrattleboro.com/living/recreation-sports/2025/03/the-games-of-boris-spassky-part-iv/
Part V: Spassky-Fischer 1992 Game 4 https://www.ibrattleboro.com/living/recreation-sports/2025/03/the-games-of-boris-spassky-part-v-fischer-spassky-1992-game-4/