Test position for amateurs <2500

[JVMerlino]

From Christiansen v Seirawan, 1978 - White to move and win

[d]r7/1pqbppk1/1n1p3p/2rP2p1/p2R3R/2NB3P/1PP2PP1/Q5K1 w - - 0 29

Here's the full game:
[Event "?"]
[Site "Berkeley"]
[Date "1978"]
[Round "?"]
[White "Christiansen, L."]
[Black "Seirawan, Y."]
[TimeControl "0/0"]
[Result "1-0"]
[ECO "B08"]

1.Nf3 g6 2.e4 Bg7 3.d4 d6 4.Nc3 Nf6 5.Be2 O-O 6.O-O Nc6 7.d5 Nb8 8.Bg5
c6 9.Qd2 Qc7 10.Rad1 Nbd7 11.Rfe1 a5 12.Bf1 a4 13.a3 Re8 14.h3 Nb6
15.Bh6 cxd5 16.Bxg7 Kxg7 17.exd5 Bd7 18.Re3 Ra5 19.Rd3 Nc4 20.Qc1 Rc5
21.Ng5 Nxa3 22.Rd4 h6 23.Nge4 Nxe4 24.Rxe4 Nc4 25.Rdd4 Nb6 26.Rh4 Rh8
27.Qa1 Ra8 28.Bd3 g5 29.Rxh6 Kxh6 30.Rh4+ Kg7 31.Rh7+ Kf6 32.Rh6+ Kg7
33.Rh7+ Kf6 34.Ne4+ Kg6 35.Qd1 g4 36.Qd2 Rxd5 37.Qh6+ Kf5 38.Rxf7+ Ke5
39.Qg7+ Ke6 40.Rf6+ Ke5 41.Rxd6+ Kf4 42.g3+ 1-0