CREATE TABLE table_79656 ("Match" FLOAT, "Date" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result" TEXT, "Attnd." FLOAT, "Report" TEXT)

Which match did FCR 2001 Duisburg participate as the opponent?
SELECT SUM("Match") FROM table_79656 WHERE "Opponent" = 'fcr 2001 duisburg'
SELECT SUM("Match") FROM "table_79656" WHERE "Opponent" = 'fcr 2001 duisburg'