SAN MARCOS TX. SMTX CHESS (USCF ID A7429663). Affiliate Type: Club. 1st and 3rd Wednesday 6:30PM - 8:30PM, 625 E Hopkins St, San Marcos. Contact Phone: 5126652633. Club Phone: 512-393-8212. Address: 625 E HOPKINS ST, SAN MARCOS, TX, 78666. email: admin@smtxchess.org, Club Membership Not Required, Casual Play, USCF Rated Events, Unrated Events, Blitz Events, Club Championships, Sets Available, Clocks Available, Book Library, Classes Offered, Simuls Offered, Under Age 18 Welcome, Beginners Welcome, Refreshments.