[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1bq1rk1/ppp1bppp/2nppn2/8/1P1PP3/2P2N2/P3BPPP/RNBQ1RK1 b - - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:36:45.840 UTC"] [GameStartTime "2025-07-14T03:36:45.460 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.04+0.04"] 1... Nxe4 {+0.95 14/14 200 2038477, White makes an illegal move: e8e7} 0-1