[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r3kbnr/pp2p1pp/2pqbp2/4n3/B2p4/3P4/PPP1QPPP/RNB1K1NR w KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:33.356 UTC"] [GameStartTime "2025-06-23T15:43:33.154 UTC"] [PlyCount "2"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1. a3 {-1.95 5/0 86 392402} b5 {+0.55 5/0 93 1014766, White makes an illegal move: a2a3} 0-1