[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "1-0"] [FEN "rn1qkb1r/pp3ppp/4pn2/2Pp4/1P4b1/2NQ1N2/P1P1PPPP/R1B1KB1R b KQkq - 0 1"] [GameDuration "00:00:05"] [GameEndTime "2025-07-04T14:12:15.925 UTC"] [GameStartTime "2025-07-04T14:12:10.491 UTC"] [PlyCount "8"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.05+0.04"] 1... Nc6 {-0.55 4/4 190 3623595} 2. Qb5 {+0.55 3/3 173 0} Qc7 {-0.35 5/5 169 3146310} 3. Be3 {+0.35 4/4 181 0} e5 {-0.30 4/4 309 6046578} 4. h3 {+0.30 3/3 261 0} Bf5 {-0.25 1/1 1093 22681939} 5. O-O-O {+0.25 2/2 1713 0, Black makes an illegal move: g4f5} 1-0