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[what is this?]

Attack king 2 games, 1940-1948 Chess Fundamentals by Capablanca Rev De Firmian 37 games, 1901-1929 euwe+kramer book2 1 game, 1942 Further study games 1 game, 2012 good games to study 1 game, 1959 Learning Marshall gambit 1 game, 2011 nimzo isolani games 2 games, 1950-1968 Platonov's Chess Academy 2 games, 1969 Queen Indian sampler games Sample ideas in the Queen Indian Opening 0 games, Roman grandishivili lessons from youtube "think and play like a gm" 2 games, 1972-1974 Romanovsky Middlegame Planning Pawn storm. Tarrash defense. 4 games, 1906-1937 superpawn study of K vs B All instructive endgames 6 games, 1922-1943 superpawn's favorite games knight vs. bishop 2 games, 1943-2008 superpawn's favorite MARSHALL ATTACKS 1 game, 1999 vh learn nimzo 1 game, 1931 vh learning from botvinik 2 games, 1927-2012 vh study QG games 1 game, 1934