[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r1bqkb1r/1p1n1ppp/p1np4/2p1p3/4PP2/2NP1NP1/PPP3BP/R1BQ1RK1 b kq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:38.488 UTC"] [GameStartTime "2025-06-23T15:43:38.252 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1... exf4 {-0.65 6/0 87 897552} 2. gxf4 {+0.20 6/0 106 1889486, Black makes an illegal move: e5f4} 1-0