[Event "?"] [Site "?"] [Date "2025.07.14"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1b1kbnr/ppp2ppp/2n2q2/3pp3/1P6/N1P5/PBQPPPPP/R3KBNR b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-07-14T03:19:59.476 UTC"] [GameStartTime "2025-07-14T03:19:59.124 UTC"] [PlyCount "1"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.05+0.04"] 1... Bf5 {+1.15 11/11 145 1559885, White makes an illegal move: a1a2} 0-1