[Event "It (open)"] [Site "masterchessopen.com – Giessen (Germany)"] [Round "4"] [White "Stahl Gerhard"] [Black "Kirchhoff Hartmut"] [Result "1-0"] [ECO "D80"] [Opening "Gruenfeld: 4.e3 Bg7"] 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 O-O 6.Qb3 c6 7.Be2 dxc4 8.Bxc4 b5 9.Be2 Be6 10.Qc2 Na6 11.a3 Nc7 12.O-O Rc8 13.Ne5 Na8 14.Nd3 Bf5 15.Qd2 Bxd3 16.Bxd3 Qb6 17.b4 Rfd8 18.Bb2 Nd7 19.Ne4 f5 20.Nc5 Nxc5 21.dxc5 Qc7 22.Bxg7 Kxg7 23.Qb2+ e5 24.Rad1 Re8 25.Bc2 Re6 26.Rd2 Qe7 27.Rfd1 Nc7 28.Rd7 {#r} 1-0