คู่หูผิวดินคนไหนได้รองชนะเลิศด้วยคะแนน 1×6, 6×4, [10×12]?
Which Partner with the surface of Clay ended up as a runner-up with a score of 1–6, 6–4, [10–12]?
df = pd.DataFrame(columns=['partner', 'score', 'surface', 'outcome'])
df[(df['surface'] == 'clay') & (df['outcome'] == 'runner-up') & (df['score'] == '1–6, 6–4, [10–12]')]['partner'].values[0]