[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rnb2rk1/ppqpnpbp/4p1p1/2P5/2B1P3/2P1BN2/PP1N1PPP/R2QK2R b KQ - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:24:30.324 UTC"] [GameStartTime "2025-07-14T03:24:29.999 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.019+0.04"] 1... Nbc6 {-1.50 12/12 151 1016075, White makes an illegal move: e8d7} 0-1