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_26733129_1 ( episode_number INTEGER, three_darts_challenge VARCHAR )

### Question ###
How many episodes are there for the three darts challenge with Sharon Osbourne?

### Accurate SQL ###

SELECT MAX(episode_number) FROM table_26733129_1 WHERE three_darts_challenge = "Sharon Osbourne"