Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2508633_2 ( pick__number INTEGER, position VARCHAR, nfl_team VARCHAR )

### Question ###
Name the most pick number for guard and kansas city chiefs

### Accurate SQL ###

SELECT MAX(pick__number) FROM table_2508633_2 WHERE position = "Guard" AND nfl_team = "Kansas City Chiefs"