The Cold War saw the United States and Soviet Union in a contest for dominion not only of the Earth, but of the heavens. Superiority in rocketry and space exploration became metrics for the success of their rival political and economic ideologies. The spacecraft and launch vehicles developed by the competing space programs differed wildly in their design philosophy but were remarkably alike in functionality--reflecting the distinct routes followed by the two superpowers in pursuit of the same goals.
Pieces:
             United States           Soviet Union
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King:            Saturn V                  N1
Queen:             STS                Buran-Energia
Bishop:         Titan IIIE              Vostok-K
Knight:         Apollo CSM            Soyuz Capsule
Rook:          Lunar Module             LK Lander
Pawn:         Mercury Capsule        Vostok Capsule
All pieces were designed to print without support except the US Space Shuttle Queen.