[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r1b1kb1r/p1pqpppp/2n2n2/1p6/3P4/2N2N2/PPQ1PPPP/R1B1KB1R b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:40:28.394 UTC"] [GameStartTime "2025-06-23T15:40:28.170 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4+0.04"] 1... Nxd4 {-0.55 6/0 85 409623} 2. Nxd4 {-1.20 7/0 113 1708083, Black makes an illegal move: c6d4} 1-0