Calvin Barry Blocker (born 1955 in

Cleveland, Ohio Cleveland ( ), officially the City of Cleveland, is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located in the northeastern part of the state, it is situated along the southern shore of Lake Erie, across the U.S. ...

) is an

International Master FIDE titles are awarded by the international chess governing body FIDE (''Fédération Internationale des Échecs'') for outstanding performance. The highest such title is Grandmaster (GM). Titles generally require a combination of Elo rating and ...

chess Chess is a board game for two players, called White and Black, each controlling an army of chess pieces in their color, with the objective to checkmate the opponent's king. It is sometimes called international chess or Western chess to disti ...

. He earned his Fide Master title in 1981 and International Master title in 1982. The winner of a record 15 Ohio championships, Blocker dominated Ohio chess during the 1980s, winning the title every year from 1981 through 1989 except 1983, when he did not participate. He most recently won the championship in 2013. Blocker is also the

Ohio Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...

state record holder for simultaneous games, having amassed 110 wins and 6 draws in a single exhibition. Well known as a coach, he has taught several high-profile chess players, including Marc Esserman.

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* American chess players Chess International Masters People from Cleveland 1955 births Living people {{US-chess-bio-stub