[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r1b1k2r/pppqbppp/2n5/4p3/4N3/2PP1N2/PP3PPP/R1BQK2R w KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:36.365 UTC"] [GameStartTime "2025-06-23T15:43:36.090 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1. Be3 {-0.40 4/0 84 352152} a6 {+0.20 5/0 84 594072} 2. O-O {-0.30 5/0 84 1145438, Black makes an illegal move: a7a6} 1-0