[Event "?"] [Site "?"] [Date "2025.07.13"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rnbqkb1r/1pp2pp1/p3pn2/7p/P1pP4/5NP1/1P2PPBP/RNBQ1RK1 b kq - 0 1"] [GameDuration "00:00:02"] [GameEndTime "2025-07-13T18:48:28.392 UTC"] [GameStartTime "2025-07-13T18:48:26.203 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.01+0.04"] 1... Nc6 {+0.50 11/11 88 864688, White makes an illegal move: h5h4} 0-1