Question: Name the men's singles for Christian Wagener Christian Esch
SQL: SELECT "Men's singles" FROM "2-15001957-1" WHERE "Men's doubles" = 'Christian Wagener Christian Esch';

Question: Name the total numbe rof years for gaby weissen mireille kosmala
SQL: SELECT COUNT("Year") FROM "2-15001957-1" WHERE "Women's doubles" = 'gaby weissen mireille kosmala';

Question: Name the mixed doubles with Martine Ludwig Angele Da Cruz, and men's doubles of Christian Wagener Christian Esch
SQL: SELECT "Mixed doubles" FROM "2-15001957-1" WHERE "Women's doubles" = 'Martine Ludwig Angele Da Cruz' AND "Men's doubles" = 'Christian Wagener Christian Esch';