Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which Game has an Opponent of at kansas city chiefs, and an Attendance smaller than 40,213?

### Inputs:
table_name: table, columns: ['Game', 'Date', 'Opponent', 'Result', 'Oilers points', 'Opponents', 'Oilers first downs', 'Record', 'Attendance']

### Response:
SELECT SUM Game FROM table WHERE Opponent = at kansas city chiefs AND Attendance < 40,213