[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "r2qkb1r/1pp2ppp/p1n1pn2/8/1PPP2b1/P4N2/4BPPP/RNBQK2R w KQkq - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:25.105 UTC"] [GameStartTime "2025-06-23T15:43:24.769 UTC"] [PlyCount "3"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1. h3 {-1.20 6/0 92 1598429} Nxb4 {-2.35 6/0 86 479279} 2. hxg4 {+0.90 7/0 131 1873273, Black makes an illegal move: c6b4} 1-0