[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "rnbqk2r/pp2npbp/4p1p1/2pp4/8/3PPB2/PPPN1PPP/RNBQK2R w KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:40:40.678 UTC"] [GameStartTime "2025-06-23T15:40:40.383 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4+0.04"] 1. O-O {+0.05 4/0 87 208959} Nbc6 {-0.10 4/0 90 99954} 2. Nc3 {-0.10 4/0 83 87274, Black makes an illegal move: b8c6} 1-0