[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rn1qk2r/1bpp1ppp/1p2p1n1/p7/1bPPP3/2NB1N2/PP1B1PPP/R2Q1RK1 b kq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:40:34.780 UTC"] [GameStartTime "2025-06-23T15:40:34.470 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4+0.04"] 1... Nc6 {-1.30 5/0 99 718676} 2. a3 {+0.75 6/0 85 552342} Bxc3 {-1.25 6/0 86 1504777, White makes an illegal move: a2a3} 0-1