[Event "Titled Tuesday 14th Sept"]
[Site "chess.com INT"]
[Date "2021.09.14"]
[Round "9"]
[White "Koellner, Ruben Gideon"]
[Black "Erdogdu, M"]
[Result "1-0"]
[WhiteTitle "FM"]
[BlackTitle "GM"]
[WhiteElo "2441"]
[BlackElo "2396"]
[ECO "D00"]
[Opening "Queen's Pawn Game: Accelerated London System"]
[PlyCount "83"]

1.d4 d5 2.Bf4 e6 3.e3 Bd6 4.Bg3 Nf6 5.Nd2 c5 6.c3 Qc7 7.Bd3 Nbd7 8.f4 b6 9.Ngf3 Bb7 10.Ne5 O-O 11.Qf3 a5 12.Bh4 Ne8 13.Qh3 f5 14.g4 Bxe5 15.fxe5 g6 16.gxf5 exf5 17.Rg1 Ng7 18.Bg5 Rf7 19.Bh6 Nf8 20.Nf3 Nfe6 21.Ng5 Nxg5 22.Bxg5 Ba6 23.Bxa6 Rxa6 24.Bf6 b5 25.Kd2 b4 26.Rab1 a4 27.a3 bxc3+ 28.bxc3 Rb6 29.Bxg7 Kxg7 30.Qf3 cxd4 31.exd4 Rxb1 32.Rxb1 Qc4 33.Rb4 Qa2+ 34.Kd3 f4 35.e6 Rf6 36.e7 Re6 37.Rb7 Qc4+ 38.Kd2 Qa2+ 39.Kd3 Qc4+ 40.Kd2 Kf6 41.Qxf4+ Kg7 42.e8=Q+ 1-0