Black to play and win (easy)
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Show moves
64...Bxb4! 65.cxb4 c3 66.Nb3 Kc4 67.Nc1 Kxb4 68.Ke2 Ka3 69.Kd1 Kb2 70.Nd3+ Kb1 71.Nb4 e4 72.Nc2 e3 73.Nd4 b4 74.g5 Kb2 0-1
Games PGN
Created almost 5 years ago. 
[Event "Clare Benedict Cup"]
[Site "Copenhagen"]
[Date "1977.??.??"]
[Round "7"]
[White "Calvo Minguez, Ricardo"]
[Black "Andersson, Ulf"]
[Result "0-1"]
[WhiteElo "2420"]
[BlackElo "2565"]
[ECO "B15"]
[FEN "8/4b3/6p1/1p1kp3/1Pp3Pp/2P2K1P/3N4/8 b - - 2 64"]
[SetUp "1"]

64...Bxb4 $1 65.cxb4 c3 66.Nb3 Kc4 67.Nc1 Kxb4 68.Ke2 Ka3
69.Kd1 Kb2 70.Nd3+ Kb1 71.Nb4 e4 72.Nc2 e3 73.Nd4 b4 74.g5 Kb2 0-1