[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r2qk1nr/1pp2bpp/p1n1pp2/3p4/1bPP4/1P1BPN2/PB1N1PPP/R2QK2R w KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:35.711 UTC"] [GameStartTime "2025-06-23T15:43:35.285 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1. a3 {+0.40 6/0 157 1521098} dxc4 {-1.75 7/0 149 1265056} 2. Bxc4 {+0.40 6/0 85 1096384, Black makes an illegal move: d5c4} 1-0