Table schema:
CREATE TABLE table_name_31 (games_played INTEGER, goals_for VARCHAR, losses VARCHAR, wins VARCHAR)

Question: what is the sum of games played when the losses is less than 7, the wins is 6 and the goals for is more than 76?
SQL: SELECT SUM(games_played) FROM table_name_31 WHERE losses < 7 AND wins = 6 AND goals_for > 76