Friday 4 July 2008

Did I invent something new?

Following on from the post concerning playing while sick, here is the second game played last Wednesday evening. It was against former Australian Girls Champion Emma Guo, and this is at least the third game between us that I've posted to this blog. I suspect this is because we have very similar playing styles, and a fairly similar opening repertoire so the games tend to be exciting (although often drawn).
The game started off with my usual transposition tricks (Sicilian Grand Prix until I switched back to the Open at move 5), but on move 7 I decided to try something different. This I guess is one of the side-effects of playing when ill, as Malcom Tredinnick presciently observed in a comment to the last post. Indeed I can remember thinking "What the heck" before moving my g pawn 2 squares. The game then went up, down and all-around as I won a pawn, dropped the exchange, launched a mating attack, and finally drew by perpetual. What was the most amazing thing however, was when I fed it into Chessbase it told me that 7.g4 was a novelty! Whether it is a good novelty might be for others to say, but certainly Fritz didn't find an outright refutation. So unless someone can point to an earlier game with 7.g4 I'm claiming precedence.

Press,S - Guo,E [B47]
ANU Winter Rapid Canberra, 02.07.2008

1.e4 c5 2.Nc3 e6 3.f4 a6 4.Nf3 Nc6 5.d4 cxd4 6.Nxd4 Qc7(D)
[ RR 7.a3 d6 ( RR 7...b5 8.Be3 Bb7 9.Be2 Na5 10.0-0 Nc4 11.Bxc4 Qxc4 12.Nb3 Qc6 13.Bd4 Nf6 14.Be5 Qb6+ 15.Bd4 Qc7 16.Be5 Qb6+ ½-½ O'Kelly de Galway,A-Filip,M/Vienna 1961/EXT 98 (16)) 8.Nb3 Nf6 9.Bd3 Be7 10.Qf3 Nd7 11.0-0 Bf6 12.Bd2 Nd4 13.Nxd4 Bxd4+ 14.Kh1 Nc5 15.Rac1 0-0 16.b4 Nxd3 17.cxd3 Qd8 18.Ne2 Bb6 19.f5 e5 20.Qh5 f6 21.Rf3 Qe8 Kortschnoi,V-Averbakh,Y/Tbilisi 1959/URS-ch/0-1 (43);
RR 7.Nxe6 dxe6 8.Bd3 b5 9.Qe2 Bb7 10.Bd2 Be7 11.a3 Rc8 12.0-0 Nf6 13.e5 Nd5 14.Ne4 f5 15.exf6 Nxf6 16.Ng5 0-0 17.Kh1 Bc5 18.Rae1 Bd4 19.Bc1 Rce8 20.c3 Ba7 21.Qc2 h6 Adams,M-Stefansson,H/Istanbul 2000/EXT 2001/1-0 (27);
RR 7.Nb3 d6 8.Bd3 ( RR 8.a4 b6 9.Be3 Nf6 10.g4 h6 11.Bg2 Bb7 12.Qe2 Nb4 13.0-0-0 Rc8 14.Rhe1 Be7 15.Rd2 Nd7 16.Red1 g5 17.Bd4 Rg8 18.f5 Ne5 19.Bxe5 dxe5 20.Qf3 h5 21.Rf2 Qc6 22.Qg3 Bf6 Walther,E-Matulovic,M/Zuerich 1961/MCD/1-0 (37)) 8...Nf6 9.0-0 Be7 10.Qf3 0-0 11.Bd2 Nb4 12.Kh1 Nxd3 13.cxd3 Bd7 14.Rac1 Bc6 15.Nd4 Qb6 16.Nxc6 bxc6 17.b3 Rac8 18.f5 exf5 19.Qxf5 Qd4 20.Bg5 Qe5 21.Na4 Qxf5 Nevednichy,V-Pavlovic,G/Zlatibor SRB 2007/The Week in Chess 668/1-0 (37)] 7...Nf6 8.g5 Nxd4 9.Qxd4 [ 9.gxf6 Qc5] 9...Nh5 10.Qf2 [ 10.Qc4!] 10...Bc5 11.Qh4 g6 12.Be2 b5 13.Bxh5 gxh5 14.Qxh5 Bb7 15.Qe2 b4 16.Nd1 d5 17.exd5? [ 17.e5] 17...Bxd5 18.Rf1 Bc4! I didn't see this coming! 19.Qe4 Rd8 20.Be3 Bxf1 21.Kxf1 Bxe3 An unnecessary exchange. Now my knight quickly heads for the weak squares around the Black king. 22.Nxe3 0-0? Now I go close to forcing mate! 23.Ng4 f5 24.gxf6 [ 24.Qxe6+ Kh8 25.Ne5 Qxc2 is a complicated line that probably draws.] 24...Qd7?! [ 24...Kh8! 25.Re1 h5 beats off the attack.] 25.f7+! Kg7 Only move [ 25...Kxf7 26.Ne5+;
25...Rxf7 26.Nh6+ Kg7 27.Nxf7 Qxf7±] 26.Qe5+ Kxf7 [ 26...Kg6 27.Qf6+ Kh5 28.Qg5#] 27.Nh6+ Ke8 28.Qh5+ Ke7 29.Qg5+ Ke8 30.Qh5+ ½-½

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