[Event "?"] [Site "?"] [Date "2025.07.04"] [Round "1"] [White "Helios-base"] [Black "Helios-dev"] [Result "0-1"] [FEN "rnbqk1nr/p1p2pbp/1p2p1p1/3p4/3P4/4PPP1/PPP1N1BP/RNBQK2R b KQkq - 0 1"] [GameDuration "00:00:08"] [GameEndTime "2025-07-04T20:55:01.850 UTC"] [GameStartTime "2025-07-04T20:54:53.321 UTC"] [PlyCount "27"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.059+0.04"] 1... Nc6 {0.00 8/8 202 3593862} 2. Nbc3 {0.00 7/7 195 3320921} Bb7 {0.00 8/8 377 6955923} 3. O-O {0.00 6/6 165 2844583} Nf6 {-0.10 6/6 230 4257816} 4. e4 {+0.25 6/6 787 14349491} Qe7 {-0.25 5/5 710 13632402} 5. Be3 {+0.35 6/6 190 3271961} O-O-O {-0.35 5/5 455 9143353} 6. e5 {+0.30 6/6 403 7116773} Nd7 {-0.30 5/5 315 5901251} 7. a3 {+0.30 4/4 101 1756950} Rhe8 {-0.40 4/4 413 7897375} 8. f4 {+0.40 3/3 107 1895894} Kb8 {-0.40 4/4 101 1934839} 9. Qd3 {+0.40 5/5 164 2982842} Ka8 {-0.50 4/4 255 5222267} 10. Bf3 {+0.50 5/5 160 3080101} a6 {-0.55 4/4 187 3673422} 11. Rad1 {+0.60 5/5 619 11837711} b5 {-0.55 3/3 82 1562364} 12. Kh1 {+0.55 4/4 181 3384985} h6 {-0.55 3/3 71 1375526} 13. g4 {+0.65 3/3 772 460036} Nb6 {-0.50 3/3 394 7555386} 14. f5 {+0.50 2/2 406 536484} Nc4 {-0.50 1/1 181 3561412, White makes an illegal move: f4f5} 0-1