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[what is this?]

2 bishop sacrifices 1 game, 1979 2 knights defense miniatures 4 games, 1858-1998 A strategic Opening Repertoire John Donaldson & Carsten Hansel 4 games, 1968-1993 Caro Khan miniatures 2 games, 1923-2004 Finales de Torre y peones Ruy Lopez Rook endings interesting stalemate situation at the ens 1 game, 1871 Giouco Pianissimo An opening that can be frequently played 1 game, 2022 Juegos de Puertorriquenos 10 games, 1949-1986 JulioGuzman's favorite games Repertorio Blancas Francesa 5.Bd2 4 games, 1890-2022 Kings Gambit Miniatures 5 games, 1817-1941 Magnus Carlsen Campeon siglo 21 Libro por Miguel Illescas 2 games, 2003 Magnus miniatures 11 y.o. Magnus 5 games, 2001-2004 Mating Patterns Arabian Mate 1 game, 1996 Miniaturas 49 games, 1623-2009 Opening Gambits Evans Gambit at elite level 9 games, 1890-1995 Queen sacrifices 7 games, 1877-1994 Reti Opening 1 game, 1925 Ruy Lopez Miniatures Wild tactics in this unusual variation of the Ruy Lopez first seen in Capablanca - Edward Lasker 10 games, 1865-2004 Scotch Games 2 games, 1879-2007 Zugzwang Cuando Julito perdia creaba piezas de arte. Bronstein cualifica esta partida como una de sus mejores!!! 1 game, 1975