[Event "Tournament"] [Site "masterchessopen.com - Rodenbach (Germany)"] [Round "4"] [White "Mahnke Joern"] [Black "Riegel Rudolf"] [Result "1-0"] [ECO "A06"] [Opening "Reti: Nimzowitsch-Larsen, 2...Nf6"] 1.Nf3 d5 2.b3 Nf6 3.Bb2 c5 4.e3 g6 5.c4 e6 6.d4 Bg7 7.dxc5 Qa5+ 8.Qd2 Qxc5 9.Bd4 Qd6 10.Be5 Qd7 11.Qb2 Qe7 12.cxd5 exd5 13.Nc3 Be6 14.Bb5+ Nc6 15.Rd1 Rd8 16.Nd4 Bd7 17.Bxf6 Qxf6 18.Nxd5 Qe5 19.Bc4 b5 20.f4 Qd6 21.Nxb5 Qf8 22.Nbc7# 1-0