[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r1bqk2r/pp2bppp/2n2n2/2ppp3/4P3/3P4/PPPNBPPP/RNBQR1K1 b kq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:38.382 UTC"] [GameStartTime "2025-06-23T15:43:38.171 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1... Nd4 {+0.40 5/0 86 294274} 2. Nc3 {-0.90 6/0 103 2115311, Black makes an illegal move: c6d4} 1-0