[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r1bqkb1r/pppp1ppp/4pn2/8/4PB2/3B1Q2/PPP2PPP/RN2K2R b KQkq - 0 1"] [GameDuration "00:00:01"] [GameEndTime "2025-07-14T03:11:03.153 UTC"] [GameStartTime "2025-07-14T03:11:02.054 UTC"] [PlyCount "4"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.1+0.04"] 1... a5 {+0.60 9/9 181 212138} 2. Nc3 {-0.40 12/12 193 2107498} Bc5 {+0.45 11/11 142 549320} 3. e5 {+0.20 12/12 162 1783084, Black makes an illegal move: f8b4} 1-0