White Elo Black Elo ECO Year Res. #       Ivkov, Borislav Jongsma, Alexander A23 1968 ½-½ 14 Vogel, Jaap Jongsma, Alexander A23 1970 ½-½ 34 Polugaevsky, Lev Jongsma, Alexander A23 1970 1-0 19 Page 1
Ivkov, Borislav - Jongsma, Alexander - IBM (8), Amsterdam, 1968 A23 1.c4 e5 2.Nc3 Nf6 3.g3 c6 4.Nf3 e4 5.Nd4 Qb6 6.Nb3 a5 7.e3 d5 8.h3 Nbd7 9.d4 exd3 10.cxd5 a4 11.Nd2 Nc5 12.dxc6 Be7 13.Bg2 bxc6 14.Nc4 Qc7 ½-½	Search games Games: 10675260 / Last update: 06 Aug 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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