[Event "USA-72ch"]
[Site "Ventura"]
[Date "1971.??.??"]
[Round "12"]
[White "Benko, Pal C"]
[Black "Chellstorp, Craig V"]
[Result "1/2-1/2"]
[WhiteElo ""]
[BlackElo ""]
[ECO "A58"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 g6 7.Nf3 d6 8.Nd2 Bg7
9.e4 O-O 10.Be2 Nfd7 11.O-O Qa5 12.Bxa6 Nxa6 13.Nc4 Qb4 14.Qe2 Nb6 15.Nxb6 Qxb6
16.Nd1 Nc7 17.Bg5 e6 18.Ne3 exd5 19.exd5 Qxb2 20.Qxb2  1/2-1/2

