user: Question: What tournament had a black of Kramnik and an opening of B66 Sicilian Defence?
Columns: ['White', 'Black', 'Year', 'Result', 'Moves', 'Tournament', 'Opening']
Types: ['text', 'text', 'real', 'text', 'real', 'text', 'text']
Sample row: ['Kramnik', 'Kasparov', 1993.0, '½–½', 19.0, 'Linares', "E86 King's Indian Defence"]
SQL:

assistant: SELECT "Tournament" FROM "Table" WHERE "Black" = 'Kramnik' AND "Opening" = 'B66 Sicilian Defence';