[Event "9th CACAC Team Ch"]
[Site "Guatemala GUA"]
[Date "1971.??.??"]
[Round "4"]
[White "Yabra, Federico DOM"]
[Black "De Boer, Willem AHO"]
[Result "1-0"]
[ECO "E76"]
[EventDate "1971.07.31"]
[PlyCount "125"]

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f4 c5 6.d5 O-O 7.Nf3 e5 8.fxe5 dxe5 
9.Bg5 h6 10.Bh4 Qa5 11.Qd2 Nbd7 12.Bd3 a6 13.O-O Re8 14.a3 Nh7 15.Rfb1 g5 
16.Bf2 Bf8 17.b4 Qc7 18.Be3 f6 19.Qf2 Kg7 20.Nd2 Be7 21.Nb3 cxb4 22.axb4 
Bxb4 23.Na4 Bf8 24.c5 Rb8 25.d6 Qd8 26.Nc3 Nxc5 27.Nxc5 Bxd6 28.Rd1 Qe7 
29.Nd5 Qf8 30.Nb6 Bg4 31.Ncd7 Qf7 32.Nxb8 Bxd1 33.Nxa6 Bg4 34.Nc5 Nf8 35.
Nd5 Bxc5 36.Bxc5 Nd7 37.Bd6 Be6 38.Ne3 Nb8 39.Bb5 Rd8 40.Bxb8 Rxb8 41.Nf5+
Bxf5 42.Qxf5 Qb3 43.Qd7+ Kg6 44.Qc7 Qe3+ 45.Kh1 Qd4 46.Rf1 Qd8 47.Qc4 Qd6 
48.Ba4 Rd8 49.Bb3 Qe7 50.h3 b6 51.Rc1 h5 52.Qb5 Rd6 53.Rc8 Rd8 54.Rc6 Rd6 
55.Rxb6 Rxb6 56.Qxb6 Qa3 57.Qe3 Qa1+ 58.Kh2 Qf1 59.Qf3 Qa6 60.Qf5+ Kg7 61.
Qd7+ Kg6 62.Qf7+ Kh6 63.Qf8+ 1-0

