Óscar created the IntyBASIC language and compiler, used by developers of all levels making new games for the Intellivision. He has also written two books on IntyBASIC programming, and several games (including the Sydney Hunter series and Princess Quest).
Oscar has won awards for the tiniest chess programs ever written (x5 IOCCC winner), and DOS boot sector games.
He also has one of the larges Spanish-language, Mexican national variants of Intellivision games and collects printed media.
Source Links:
nanochess.org
github.com/nanochess
www.lulu.com/en/us/shop/oscar-toledo-gutierrez/advanced-game-programming-for-intellivision/paperback/product-q8gzjn.html
www.chessprogramming.org/%C3%93scar_Toledo_Guti%C3%A9rrez
web.archive.org/web/20210412010423/www.homebrewlegends.com/hbl-interviews-oscar-toledo-g/
nanochess.org/intellivision_mexican_games.html