[Event "15th olm qual. group 4"]
[Site "Varna BUL"]
[Date "1962.09.20"]
[Round "3"]
[White "Barden, Leonhard William ENG"]
[Black "Calero, Ivan CUB"]
[Result "1/2-1/2"]
[ECO "D47"]
[EventDate "1962.09.16"]
[PlyCount "74"]

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 dxc4 7.Bxc4 b5 8.Bb3 a6
9.O-O Bb7 10.e4 Be7 11.e5 Nd5 12.Ne4 h6 13.Qe2 c5 14.Nxc5 Nxc5 15.dxc5 
Bxc5 16.a4 Qb6 17.axb5 axb5 18.Rxa8+ Bxa8 19.Qe4 g5 20.Bd2 Ke7 21.Qc2 Kf8 
22.Ba5 Qa7 23.Bd8 Be7 24.Bxe7+ Nxe7 25.Qd3 Qb7 26.Rd1 Kg7 27.Qd7 Qxd7 28.
Rxd7 Re8 29.Nd4 Nd5 30.f3 b4 31.Ra7 Kf8 32.Nb5 Rb8 33.Bxd5 Bxd5 34.Nd6 Ra8
35.Rxf7+ Kg8 36.Rc7 Ra1+ 37.Kf2 b3 1/2-1/2

