Table: patricio_cornejo_tennis_matches
Columns: outcome
date
tournament
surface
partner
opponents_in_the_final
score_in_the_final

Question: Who is the partner on a date later than 1971 who is the runner-up with a score of 3–6, 3–6?
SQL: SELECT "partner" FROM patricio_cornejo_tennis_matches WHERE "date" > 1971 AND "outcome" = 'runner-up' AND "score_in_the_final" = '3–6, 3–6'