[Event "Primary State Finals 2017"]
[Site "Hungarian Centre, Wantirna"]
[Date "2017-10-25"]
[White "Oliver Finch"]
[Black "Kevin Zhang"]
[WhiteElo "588"]
[BlackElo "734"]
[Result "1-0"]

{B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 1.e4 c5 2.Bc4 {last book move} Nf6 3.d3 {Prevents intrusion on e4} (3.e5 d5 4.Bb5+ Bd7 5.Be2 $11) 3...Nc6 4.Nf3 e6 {Controls d5} 5.O-O Be7 6.Nc3 O-O 7.Bf4 d5 8.exd5 exd5 9.Bb5 (9.Bb3 Be6 $11) 9...a6 (9...Nd4 10.Ne5 $15) 10.Bxc6 $11 bxc6 11.a3 (11.Re1 Re8 $11) 11...d4 $15 {Black wins space} 12.Ne4 Nxe4 13.dxe4 Bg4 14.Qd3 Be6 15.e5 (15.Rfe1 Qb6 $11) 15...c4 (15...Qd7 $15) 16.Qe4?? {letting the wind out of his own sails} (16.Qxd4 $142 {is the best option White has} Qd5 17.Bd2 $16) 16...c5 $17 17.h4 (17.h3 Rb8 18.Rab1 Qd7 $17) 17...Bd5 18.Qf5 Be6 {Black threatens to win material: Be6xf5} 19.Qh5 (19.Qe4 $11 {would allow White to play on}) 19...Qd7 20.Bg5?? {the position was bad, and this mistake simply hastens the end} (20.Ng5 Bf5 21.Qe2 d3 22.cxd3 cxd3 $17) 20...h6 (20...Bg4 $142 {might be the shorter path} 21.Qxg4 Qxg4 22.Bxe7 Rfc8 $19) 21.Bxh6?? {White has lost his nerve... understandable when you consider his position} (21.Bxe7 $142 Qxe7 22.Rab1 $17) 21...gxh6 (21...g6 $142 {and Black has prevailed} 22.Bxf8 gxh5 23.Bxe7 Qxe7 $19) 22.Qxh6 Qd8 (22...Rab8 {makes it even easier for Black} 23.Ng5 Bf5 24.f4 $19) 23.h5 Bf6?? {simply marches past the door to victory (Fritz 11). A curious moment in the game - the pressure from Oliver's daring bishop sacrifice on h6 pays a very fortunate dividend indeed! (RB)} (23...Bg4 $142 {Black clearly has the better chances} 24.Rfe1 Rb8 $19) 24.exf6 (24.Qxf6?! Qxf6 25.exf6 Rab8 $16) 24...Rb8 (24...Qxf6 {cannot undo what has already been done} 25.Qxf6 Rfb8 26.h6 Kf8 27.h7 Ke8 28.Ne5 Rxb2 29.h8=Q#) 25.Qg7#