[Event "Titled Tue 4th Jul Early"]
[Site "chess.com INT"]
[Date "2023.07.04"]
[Round "9"]
[White "Kopczynski, M"]
[Black "Koellner, Ruben Gideon"]
[Result "0-1"]
[WhiteElo "2225"]
[BlackElo "2453"]
[ECO "B00"]
[PlyCount "80"]

1.e4 d6 2.d4 Nf6 3.Bd3 e5 4.d5 Be7 5.c4 O-O 6.Ne2 Nbd7 7.f3 c6 8.O-O a6 9.a4 a5 10.Nbc3 Qb6+ 11.Kh1 Nc5 12.Bc2 Nh5 13.Be3 g6 14.Rb1 f5 15.exf5 gxf5 16.f4 e4 17.Nd4 Nf6 18.Qe1 Ng4 19.Bg1 Bf6 20.Nb3 e3 21.Nc1 Re8 22.h3 Nh6 23.Bxe3 Bd7 24.Qf2 Qb4 25.dxc6 Bxc6 26.Nd5 Bxd5 27.cxd5 Ne4 28.Qe1 Qc4 29.Bb3 Qxf1+ 30.Qxf1 Ng3+ 31.Kg1 Nxf1 32.Bf2 Nd2 33.Ra1 Bxb2 34.Ra2 Bxc1 35.Bd1 Ne4 36.Bh4 Bxf4 37.Rb2 Bg3 38.Bxg3 Nxg3 39.Kh2 f4 40.Rxb7 Re1 0-1