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Author: WikiMatrix
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English[en]
Gallagher is a noted author on various aspects of chess opening theory, being an expert on the King's Indian Defence as Black and the King's Gambit as White.
Spanish[es]
Gallagher es un notable autor en varios aspectos de la teoría de aperturas de ajedrez, siendo un experto de la Defensa india de rey con negras y del Gambito de rey con blancas.