user: Question: What's the black with 24 moves in the Dortmund tournament?
Columns: ['White', 'Black', 'Year', 'Result', 'Moves', 'Tournament', 'Opening']
Types: ['text', 'text', 'real', 'text', 'real', 'text', 'text']
Sample row: ['Kramnik', 'Anand', 1989.0, '½–½', 19.0, 'Moscow', 'C54 Giuoco Piano']
SQL:

assistant: SELECT "Black" FROM "Table" WHERE "Moves" = 24.0 AND "Tournament" = 'Dortmund';