[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r2q1rk1/ppp1ppbp/2n2np1/3pB1N1/3P2b1/3BPP2/PPP3PP/RN1QK2R b KQ - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:29:08.641 UTC"] [GameStartTime "2025-07-14T03:29:08.123 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... Bc8 {+0.20 12/12 197 2167251, White makes an illegal move: f1e1} 0-1