Grigory Levenfish vs Mikhail Botvinnik, Leningrad-Moscow match 1937, Grunfeld Defence (D83), 1-0 Levenfish played some of the best chess of his life in this match, which wound up all square after 13 games.
Mikhail Botvinnik vs Grigory Levenfish, Leningrad-Moscow match 1937, Slav Defence (D10), 0-1 Botvinnik can prove no advantage and in fact suffers defeat against the solid Slav.