Who wins the chess tournament?
What happens to Florence's father?
Who sings "One Night in Bangkok?"
Well... it depends.
The book of Chess has been rewritten for each major production. While the 2008 concert at Royal Albert Hall has been declared canon by Tim Rice, the site TV tropes lays out five possible endings for the show.
Still the bigsongs and the political themes remain. At the end of the day we're all pawns.