{{Short description|Chilean chess player (1905–1970)}} '''Mariano Castillo Larenas''' (25 December 1905 – 23 September 1970) was a Chilean chess master.

Over a period of 30 years, he won the Chilean Chess Championship nine times (1924, 1926, 1927, 1929, 1934, 1940, 1947, 1949, and 1953).<ref>{{Cite web |url=http://www.fenach.cl/FENACH-campeonesChile.php |title=Federacion Nacional de Ajedrez de Chile<!-- Bot generated title --> |access-date=2008-02-11 |archive-date=2017-06-22 |archive-url=https://web.archive.org/web/20170622231733/http://www.fenach.cl/FENACH-campeonesChile.php |url-status=dead }}</ref>

Castillo participated in several international tournaments where took 8th at Mar del Plata it 1928 (Roberto Grau won), tied for 6-10th at Buenos Aires 1934/35 (South American Chess Championship, Luis Piazzini won),<ref>[http://www.brasilbase.pro.br BrasilBase<!-- Bot generated title -->]</ref> tied for 9-10th at Mar del Plata 1936 (Isaías Pleci won), took 6th at Aguas de Sao Pedro/São Paulo 1941 (Erich Eliskases and Carlos Guimard won), took 3rd, behind Guimard and Miguel Najdorf, at Viña del Mar 1945,<ref>{{cite web |url=http://www.rogerpaige.me.uk/ |title=Home |website=rogerpaige.me.uk}}</ref> took 6th at Viña del Mar 1947 (Gideon Ståhlberg won),<ref>[http://www.chessmetrics.com Welcome to the Chessmetrics site<!-- Bot generated title -->] {{webarchive|url=https://web.archive.org/web/20060414132700/http://www.chessmetrics.com/ |date=2006-04-14 }}</ref> tied for 14-15th at Mar del Plata 1948 (Eliskases won), tied for 15-16th at Mar del Plata 1950 (Svetozar Gligorić won), took 9th at Venice 1950 (Alexander Kotov won), and tied for 14-15th at Mar del Plata 1954 (zonal, Oscar Panno won).

He played twice on first board for Chile in Chess Olympiads: * In the 8th Chess Olympiad at Buenos Aires 1939 (+2 –9 =4); * In the 9th Chess Olympiad at Dubrovnik 1950 (+3 –6 =6).<ref>[http://www.olimpbase.org OlimpBase :: the encyclopaedia of team chess<!-- Bot generated title -->]</ref>

==References== <references/>

==External links== * http://www.chessgames.com/perl/chessplayer?pid=23455

{{DEFAULTSORT:Castillo, Mariano}} Category:1905 births Category:1970 deaths Category:Chess Olympiad competitors Category:20th-century Chilean chess players