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was an Austrian-Dutch-American [https://en.wikipedia.org/wiki/FIDE_titles#International_Master_.28IM.29 International Master] of over the board chess, writer of '''Pawn Power in Chess''' (German ''Die Kunst der Bauernführung'') and other chess books. Many [[Pawn Structure|pawn structure]] terms used in chess and computer chess are based on [https://en.wikipedia.org/wiki/Neologism neologisms] defined in Kmoch's famous book <ref>[https://www.chess.com/forum/view/chess-equipment/pawn-power-in-chess-by-hans-kmoch-glossary-of-terms Pawn Power in Chess by Hans Kmoch - Glossary of Terms - Chess Forums] - [https://en.wikipedia.org/wiki/Chess.com [Chess.com]]</ref>.