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_1710426_2 (best_10_year_period VARCHAR, best_15_year_period VARCHAR)

### Question ###
Which people had the best 10-year period when Capablanca had the best 15-year period?

### Accurate SQL ###

SELECT best_10_year_period FROM table_1710426_2 WHERE best_15_year_period = "Capablanca"