4. Open

Oscar Alexander Ospina Ortiz (1992)

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2009.11.02
1/2 : 1/2

Jorge Salej ()

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1.d4 d5 2.Nf3 Nf6 3.c4 c6 4.Nc3 a6 5.Bg5 dxc4 6.a4 a5 7.e3 Na6 8.Bxc4 Nb4 9.O-O e6 10.e4 Be7 11.e5 Nfd5 12.Bxe7 Qxe7 13.Ne4 O-O 14.Nd6 b6 15.Qd2 Ba6 16.Rac1 Bxc4 17.Rxc4 f5 18.Rfc1 Qd7 19.Ne1 b5 20.axb5 cxb5 21.Qe2