user: Question: What date did Lanny Wadkins (6) win?
Columns: ['Date', 'Tournament', 'Location', 'Winner', 'Score', '1st prize ( $ )']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Jan 14', 'Bob Hope Desert Classic', 'California', 'John Mahaffey (4)', '343 (–17)', '50,000']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Winner" = 'Lanny Wadkins (6)';