user: Question: Name the least points with chassis of kurtis kraft 3000 and year before 1951
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1950.0, 'Coast Grain', 'Maserati 8CTF', 'Offenhauser L4', 0.0]
SQL:

assistant: SELECT MIN("Points") FROM "Table" WHERE "Chassis" = 'kurtis kraft 3000' AND "Year" < 1951.0;