Meaning of CHECKERED in English
check ‧ ered BrE AmE ( also chequered British English ) /ˈtʃekəd $ -ərd/ adjective
1 . having a pattern made up of squares of two different colours:
a red and white checkered tablecloth
a checkered marble floor
2 . have a checkered history/career/past etc to have had periods of failure as well as successful times in your past:
This is an unusual building with a checkered history.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012