[Event "Olympiad"] [Site "masterchessopen.com – Prague (Czech Republic)"] [Round "1"] [White "Zimmermann Otto (SUI)"] [Black "Addicks Johannes Hermanus"] [Result "1-0"] [ECO "D51"] [Opening "QGD: 4.Bg5 Nbd7 5.e3"] 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 Be7 6.Nf3 O-O 7.Rc1 c6 8.a3 Re8 9.Qc2 e5 10.dxe5 Ng4 11.Bxe7 Qxe7 12.cxd5 Ndxe5 13.Be2 Nxf2 14.O-O Nfg4 15.Qd2 Qd6 16.Nxe5 Rxe5 17.Bxg4 Bxg4 18.Qd4 Bh5 19.dxc6 Qxd4 20.exd4 Ra5 21.cxb7 Rb8 22.Nb5 Bg4 23.Nd6 Rd5 24.Rc8+ Bxc8 25.bxc8=Q+ Rxc8 26.Nxc8 Rd7 27.d5 Rxd5 28.Ne7+ {#r} 1-0