Ergo PublisherInvicta GamesPublication Year1977Author(Uncredited)VersionInvicta Games First Edition 1977 Ergo - Box FrontErgo - White WinsErgo - White ThreatensErgo - White ThreatensErgo - Waiting In The WingsErgo - Player PiecesErgo - Player PiecesErgo - On The EdgeErgo - Mid GameErgo - Initial SetupErgo - First MovesErgo - Close Up Of PlayErgo - Close Up Of PlayErgo - Box BackErgo - Playing Pieces, Both Ways UpErgo - Game BoardErgo - Black Is Blocked