[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "rnb2rk1/pp2ppbp/2pp1np1/q7/3PPB2/3B1N1P/PPPN1PP1/R2QK2R w KQ - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:41.394 UTC"] [GameStartTime "2025-06-23T15:43:41.079 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1. O-O {+0.65 5/0 91 812841} c5 {-1.75 5/0 117 445456} 2. Nc4 {+0.95 5/0 84 665921, Black makes an illegal move: c6c5} 1-0