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_17751942_4 ( final_losses VARCHAR, Semi INTEGER, team VARCHAR )

### Question ###
What is the total number of semi-final losses for the Kitchener Rangers?

### Accurate SQL ###

SELECT MAX(Semi) - final_losses FROM table_17751942_4 WHERE team = "Kitchener Rangers"