CREATE TABLE table_41745 ("Position" TEXT, "Jersey #" FLOAT, "Name" TEXT, "Height  ( cm ) " FLOAT, "Weight  ( kg ) " FLOAT, "Birthdate" TEXT, "Birthplace" TEXT, "2002\\u20132003 Team" TEXT, "NHL rights ,  if any" TEXT)

What was the highest weight in kg for F Position, Jersey #12?
SELECT MAX("Weight (kg)") FROM table_41745 WHERE "Position" = 'f' AND "Jersey #" = '12'
SELECT MAX("Weight (kg)") FROM "table_41745" WHERE "Jersey #" = '12' AND "Position" = 'f'