[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rnbqk2r/ppb2ppp/5n2/3p4/2PPp3/8/PP1NBPPP/RNBQ1RK1 w kq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:42.510 UTC"] [GameStartTime "2025-06-23T15:43:42.092 UTC"] [PlyCount "4"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1. cxd5 {-0.80 6/0 101 833876} Qd6 {-0.55 5/0 103 1530742} 2. f4 {-0.70 6/0 103 1043649} Qxd5 {+0.10 5/0 84 1108549, White makes an illegal move: f2f4} 0-1