Chess grand master Boris Spassky (who died at 88) belonged to which country?

Explanation

– Boris Spassky, the former World Chess Champion who died in 2025 at age 88, was from Russia (born in the Soviet Union).
– He held the World Chess Championship title from 1969 to 1972, notably losing it to American Bobby Fischer in the famous ‘Match of the Century’ in Reykjavik.
– That 1972 match became one of the most iconic events in chess history, drawing global attention during the Cold War era.
– Spassky later relocated to France, though he remained closely associated with the Soviet and Russian chess tradition throughout his life.