[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "r1b1kbnr/pp2pppp/nqp5/8/2BP1B2/4P3/PP3PPP/RNQ1K1NR b KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:40:32.573 UTC"] [GameStartTime "2025-06-23T15:40:32.284 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4+0.04"] 1... Nb4 {-0.90 4/0 87 313148} 2. a3 {+0.25 5/0 93 526532} Nd5 {-1.60 6/0 85 1598754, White makes an illegal move: a2a3} 0-1