[Event "?"] [Site "?"] [Date "2025.06.23"] [Round "1"] [White "Helios-dev"] [Black "Helios-base"] [Result "0-1"] [FEN "rnb2rk1/pp2ppbp/2pp1np1/q7/3PPB2/3B1N1P/PPPN1PP1/R2QK2R w KQ - 0 1"] [GameDuration "00:00:00"] [GameEndTime "2025-06-23T15:43:41.537 UTC"] [GameStartTime "2025-06-23T15:43:40.971 UTC"] [PlyCount "6"] [SetUp "1"] [Termination "illegal move"] [TimeControl "4.03+0.04"] 1. a3 {+0.50 5/0 88 682089} h6 {-1.40 5/0 87 982422} 2. c3 {+0.35 5/0 112 556124} g5 {-1.20 4/0 87 652696} 3. b4 {+0.55 5/0 83 337848} Qc7 {-0.80 5/0 84 734440, White makes an illegal move: b2b4} 0-1