Question: What was the 2nd leg that had a first leg of 1-1?
SQL: SELECT "Home (2nd leg)" FROM "2-17968233-1" WHERE "1st Leg" = '1-1';

Question: What was the first leg home that had a total aggregate of 3-1?
SQL: SELECT "Home (1st leg)" FROM "2-17968233-1" WHERE "Aggregate" = '3-1';

Question: What was the 1st leg that had a 4-2 aggregate?
SQL: SELECT "1st Leg" FROM "2-17968233-1" WHERE "Aggregate" = '4-2';

Question: What was the 1st leg that had a 1st get home for the Boca Juniors?
SQL: SELECT "1st Leg" FROM "2-17968233-1" WHERE "Home (1st leg)" = 'Boca Juniors';

Question: What was the 2nd leg that had the Estudiantes La Plata home for the 2nd leg?
SQL: SELECT "2nd leg" FROM "2-17968233-1" WHERE "Home (2nd leg)" = 'Estudiantes La Plata';