White Elo Black Elo ECO Year Res. #       Zweifel, Heinz Steiger, Peter B72 1999 0-1 28 Denzinger, Karl Zweifel, Heinz B93 2001 0-1 46 Zweifel, Heinz Rickenbach, Jakob B73 2001 0-1 32 Studer, Kurt Zweifel, Heinz B30 2001 1-0 32 Zweifel, Heinz Kaelber, Manuela B32 2003 1-0 35 Zweifel, Heinz Treichler, Peter 1650 B33 2004 0-1 34 Briggen, Franz Zweifel, Heinz C50 2009 1-0 33 Zweifel, Heinz 1504 Zuercher, Ulrich 1659 B58 2009 0-1 29 Page 1
Zweifel, Heinz - Steiger, Peter - Zuerich op-B 23th (2), Zuerich, 1999 B72 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nf6 8.f4 O-O 9.Qd2 Bd7 10.h3 a6 11.g4 b5 12.a3 Qa5 13.Nb3 Qc7 14.Rg1 Rfd8 15.f5 Ne5 16.Bh6 Qb6 17.O-O-O Bc6 18.Bxg7 Kxg7 19.Qf4 b4 20.Nd5 Bxd5 21.exd5 bxa3 22.bxa3 Rac8 23.Rg3 Qb7 24.Na5 Qc7 25.Qd2 Ne4 26.Rc3 Nxc3 27.Rf1 Qxa5 28.Qd4 Nxe2+ 0-1	Search games Games: 10658164 / Last update: 23 Jul 2025 GamePositionEndgames White Black Ignore colours ECO Year Result All 1-0 0-1 ½-½ Event Site Click below to set up a position to search for Set position Click the button below to select an endgame type
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