[Event "It (open)"] [Site "masterchessopen.com Greifswald (Germany)"] [Round "4"] [White "Knuppel Ingo"] [Black "Stemmler Lysan (GER)"] [Result "1-0"] [BlackElo "1834"] [ECO "B06"] [Opening "Modern: 3.Nf3 d6"] 1.e4 g6 2.d4 Bg7 3.Nf3 d6 4.Nc3 Nd7 5.Bc4 e5 6.Ng5 f5 7.Nf7 Qe7 8.Nd5 Qf8 9.Nxc7+ Ke7 10.Nxa8 Ngf6 11.dxe5 dxe5 12.Qd6+ Ke8 13.Nc7# 1-0