This is the story behind the fiendishly addictive game, a tale of high stakes, intimidation and legal feuds set against the backdrop of Cold War tensions between East and West.

Cast:Dervla Kirwan, Alexey Pajitnov, Evgeni Nikolaevich Belikov, Phil Adam, Randy Broweleit, Howard Lincoln,

Genre:Documentary,

country:United Kingdom,

Production:BBC,