[Event "?"]
[Site "?"]
[Date "2025.05.18"]
[Round "1"]
[White "Integral-base"]
[Black "Integral-dev"]
[Result "0-1"]
[FEN "rn1qk2r/pp3ppp/2pbpn2/3p1b2/3P1P2/P1N1P3/1PP1B1PP/R1BQK1NR b KQkq - 0 1"]
[GameDuration "00:00:01"]
[GameEndTime "2025-05-18T19:29:59.252 PDT"]
[GameStartTime "2025-05-18T19:29:57.638 PDT"]
[PlyCount "1"]
[SetUp "1"]
[Termination "illegal move"]
[TimeControl "20.73+0.21"]

1... c5 {+1.37 21/43 1428 1641039, White makes an illegal move: a1c1} 0-1