[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rnbqk2r/ppp2ppp/3ppn2/8/3PP3/2N5/PPPQ1PPP/2KR1BNR b kq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:33.399 UTC"] [GameStartTime "2025-06-23T15:43:33.103 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1... Nc6 {-0.70 4/0 85 166932} 2. a3 {-0.05 6/0 102 974400} d5 {-0.75 5/0 85 1131471, White makes an illegal move: a2a3} 0-1