[Event "58th Biel Master Open"]
[Site "Biel SUI"]
[Date "2025.07.14"]
[Round "1.25"]
[White "Song, Ethan"]
[Black "Mueller, Konstantin"]
[Result "1-0"]
[WhiteElo "2288"]
[BlackElo "2017"]
[ECO "C65"]
[PlyCount "151"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.O-O Be7 6.Re1 O-O 7.c3 a6 8.Bxc6 bxc6 9.h3 c5 10.Nbd2 Be6 11.Qc2 c6 12.d4 Nd7 13.dxe5 dxe5 14.Nf1 Qc7 15.Ne3 Rfd8 16.Nf5 Bxf5 17.exf5 Re8 18.Qe4 Nf6 19.Qc4 Bd6 20.Bg5 Nd5 21.Nd2 Qd7 22.Qg4 f6 23.Be3 Bf8 24.Ne4 c4 25.Rad1 Qb7 26.Bc1 Rad8 27.Nd2 Nb6 28.Nxc4 Nxc4 29.Qxc4+ Rd5 30.Qe2 Red8 31.c4 R5d7 32.Rxd7 Qxd7 33.Qe4 Bb4 34.Rf1 Bc5 35.b3 Qd6 36.Qf3 Bd4 37.Be3 Qd7 38.b4 Qb7 39.a3 Qb6 40.c5 Qb7 41.Rd1 a5 42.Bxd4 Rxd4 43.Qb3+ Kf8 44.Rb1 axb4 45.axb4 h6 46.Kh2 Rf4 47.f3 Rd4 48.Kh1 e4 49.fxe4 Rxe4 50.Qc3 Re5 51.Qc2 Qe7 52.Qf2 Qd7 53.Rf1 Re4 54.Qb2 Qb7 55.Qd2 Kg8 56.Rb1 Re5 57.Qd6 Qc8 58.Ra1 Kh7 59.Rc1 Qb7 60.Rc4 Qa6 61.Qd4 Qc8 62.Rc1 Qc7 63.b5 cxb5 64.c6 Re8 65.Qg4 Rd8 66.Qe4 Rb8 67.Qb4 Rb6 68.Qg4 Rb8 69.Qe4 Rd8 70.Qe6 Rd6 71.Qxd6 Qxd6 72.c7 b4 73.c8=Q b3 74.Qc3 Qf4 75.Rb1 Qxf5 76.Qxb3 1-0