[Event "Ch Germany"] [Site "masterchessopen.com – Leipzig (Germany)"] [Round "13"] [White "Koch Berthold (GDR)"] [Black "Benkner Otto"] [Result "1-0"] [ECO "C70"] [Opening "Spanish: 4.Ba4"] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.d4 exd4 7.e5 Ne4 8.Re1 Nc5 9.Bxc6 dxc6 10.Nxd4 Ne6 11.Nf5 Qxd1 12.Rxd1 Bd7 13.Nc3 Rd8 14.Be3 Bc8 15.Ne4 Rxd1+ 16.Rxd1 Bd8 17.Ned6+ cxd6 18.Nxd6+ Kf8 19.Nxc8 Ke8 20.Nd6+ {#r} 1-0