[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1bq1rk1/pp2ppbp/2n2np1/2pp4/3P4/1BN1PN2/PPPB1PPP/R2Q1RK1 b - - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:26:59.637 UTC"] [GameStartTime "2025-07-14T03:26:59.275 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... c4 {0.00 14/14 175 1731445, White makes an illegal move: h1g1} 0-1