White Elo Black Elo ECO Year Res. #       Mengarini, Ariel MacDonald, Jonathan D64 1957 ½-½ 26 MacDonald, Jonathan Zalys, Ignas E34 1958 0-1 29 Fischer, Robert James MacDonald, Jonathan B93 1964 1-0 39 MacDonald, Jonathan Zimber, Armin B15 1989 0-1 26 MacDonald, Jonathan Zube, M B77 1989 0-1 22 Schmidt, F MacDonald, Jonathan A65 1989 0-1 21 Atkins, Michael MacDonald, Jonathan A05 1994 0-1 40 Floyd, Brian MacDonald, Jonathan C67 1994 ½-½ 17 Howarth, Anthony MacDonald, Jonathan C47 1994 1-0 51 MacDonald, Jonathan Belanger, Jacques B31 1994 ½-½ 44 MacDonald, Jonathan Gnam, William B92 1994 ½-½ 37 MacDonald, Jonathan Young, Steven D B77 1994 1-0 22 MacDonald, Jonathan Pentz, Brian B07 1996 ½-½ 14 Mayo, Alvah Morrison MacDonald, Jonathan C67 1996 ½-½ 17 Page 1
Mengarini, Ariel - MacDonald, Jonathan - New Jersey State-ch op (7), East Orange, 1957 D64 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Nbd7 5.e3 Be7 6.Nf3 O-O 7.Rc1 c6 8.Qc2 Ne4 9.Bxe7 Qxe7 10.Nxe4 dxe4 11.Qxe4 Qb4+ 12.Kd1 Qxb2 13.Bd3 Nf6 14.Qh4 c5 15.g4 e5 16.g5 Bg4 17.Bxh7+ Nxh7 18.Qxg4 exd4 19.exd4 cxd4 20.Re1 Rfe8 21.g6 fxg6 22.Ne5 Qxf2 23.Qxg6 Qf4 24.Re4 Qf6 25.Qxf6 Nxf6 26.Re2 Rad8 ½-½	Search games Games: 10666599 / Last update: 30 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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