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_26463 ( "Overall Episode #" real, "Original airdate" text, "Iron Chef" text, "Challenger" text, "Challenger Specialty" text, "Theme Ingredient" text, "Winner" text )

### Question ###
How many iron chefs were there when the challenge specialty was Japanese cuisine?

### Accurate SQL ###

SELECT COUNT("Iron Chef") FROM table_26463 WHERE "Challenger Specialty" = 'Japanese'