(1) Heavens, Alan (1754) - Alexander, Alastair (1950) [B78]
PH1-Edinburgh 1
[Alan Heavens]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 0-0 8.Qd2 Nc6 9.Bc4 Bd7 10.0-0-0 Rc8 11.Bb3 Nxd4 12.Bxd4 b5 13.e5 last book move 13...dxe5 14.Bxe5 Bc6 15.Qxd8 Rfxd8 16.Rxd8+ Rxd8 17.Rd1 Bh6+ 18.Kb1 Rxd1+ 19.Nxd1 Nd5 20.c4 Nf4 21.cxb5 Bxb5 22.g3 Nd3 23.Bd4 Ne1 24.f4 Nf3+/- [24...a6!?= ] 25.Bxa7 The passed pawn on a2 will become decisive later 25...Nxh2 26.Kc2 Ng4 27.Bd4 g5 28.a4 Bc6 29.fxg5 Bxg5 30.a5 e5 [30...Kf8 31.a6+/- ] 31.Bg1 e4 32.Bc4 e3+- [32...Ne5 33.Be2+/- ] 33.Be2 Ne5 [33...f5+- ] 34.Bxe3 White launches an attack 34...Bxe3 35.Nxe3 Be4+ [35...Kf8 36.b4+- ] 36.Kc3 Nc6 [36...f6 37.a6+- ] 37.a6 Kf8 38.b4 Ke7 39.b5 Nb8 [39...Nd8 40.Bc4 Kd7 41.Bd5 Bxd5 42.Nxd5+- ] 40.Kd4 Ba8 [40...Nxa6 is not the saving move 41.bxa6 Ba8 42.Kc5+- ] 41.Nd5+ [>=41.a7 ends the debate 41...Nd7 42.Bf3 Bxf3 43.Nd5+ Bxd5 44.Kxd5 f5+- ] 41...Kd6 42.Nb6 Bh1 43.a7 Threatening mate... how? 43...Nd7 [43...Kc7 a fruitless try to alter the course of the game 44.Ke3 Na6 45.Bf3 (45.bxa6?! Kxb6 46.Bd3 Kxa7+/- ) 45...Bxf3 46.Kxf3 (46.bxa6?! is impossible 46...Kxb6 47.Kxf3 Kxa7= ) 46...Kxb6 47.a8Q (47.bxa6?! is a bad alternative 47...Kxa7 48.Ke4 Kxa6= ) 47...Kxb5 48.Ke4+- ] 44.a8Q [44.Nxd7 Kxd7 45.b6+- ] 1-0

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