SCHEMA:
CREATE TABLE table_name_80 (white VARCHAR, opening VARCHAR, year VARCHAR, moves VARCHAR, black VARCHAR)
User Question:
What's the white of E93 King's Indian Defence when Kasparov was black, moves were greater than 19, and happened before 2000?


SELECT white FROM table_name_80 WHERE moves > 19 AND black = "kasparov" AND year < 2000 AND opening = "e93 king's indian defence"