A00 Irregular Openings (1.a3 d5 2.Nf3)

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Move	N	Result	Elo

1.e4	1,166,623	54%	2421
1.d4	947,298	55%	2434
1.Nf3	281,602	56%	2441
1.c4	182,102	56%	2442
1.g3	19,702	56%	2427
1.b3	14,265	54%	2427
1.f4	5,897	48%	2377
1.Nc3	3,801	51%	2384
1.b4	1,756	48%	2380
1.a3	1,206	54%	2404
1.e3	1,068	48%	2408
1.d3	954	50%	2378
1.g4	664	46%	2360
1.h4	446	53%	2374
1.c3	433	51%	2426
1.h3	280	56%	2418
1.a4	110	60%	2466
1.f3	92	46%	2436
1.Nh3	89	66%	2508
1.Na3	42	62%	2482

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1.a3 A00 Anderssen Opening 1.Nf3 d5 1-0 (72) Georgiev,S (2134)-Ninov,D (2012) Sofia 2010 1...d5 2.Nf3 A00 Irregular Openings c5 3.e4 dxe4 4.Ng5 Nf6 5.Bc4 e6 Strongly threatening ...h6. 6.Nc3 Be7N 6...a6! 6...Nc6 7.0-0 Be7 8.Re1 0-0 9.Ngxe4 b6 10.Nxf6+ Bxf6 11.Ne4 Bb7 12.a4 Be5 13.Ra3 g6 14.Rh3 Bg7 15.d3 Ne7 16.Ng5 h6 17.Nxf7 Rxf7 18.Bxe6 Nf5 19.c3 Qf6 20.Qb3 Raf8 21.Bxf7+ Georgiev,S (2134) -Ninov,D (2012) Sofia 2010 1-0 (72) 7.Ngxe4 0-0 8.0-0 The position is equal. Nc6 Black should try 8...Nxe4 9.Nxe4 a6 9.d3 9.Nxf6+ is more appropriate. Bxf6 10.Re1 9...Nd5 10.Qh5 Nxc3 11.bxc3 Bf6 11...Na5 stays ahead. 12.Qxc5± Ne5 Black should play 12...Be7! 13.Qe3 b6 13.Nxf6+ Qxf6 14.Bb3 b6 15.Qd4 Bb7

White must now prevent ...Nf3+! 16.Qf4 Qg6 17.f3 Nc6 18.Qg5 Qxg5 19.Bxg5 h6 20.Bd2 Rac8 21.Kf2 Ne7 21...Rfd8± 22.Rfe1 Na5 22.c4 Nf5 22...Ba6 23.Bb4 Rc7 23.Rfb1+- Rfd8 24.a4 Nd4 24...Bc6 was worth a try. 25.Be3 Nd4 26.Bxd4 Rxd4 25.a5 Nxb3 26.Rxb3 Rc6 27.Be3 Ba8 28.axb6 axb6 29.Bxb6 Don't take 29.Rxb6 Rxb6 30.Bxb6 Rc8+- 29...Rdc8?

29...Re8 30.Ra7 Rcc8 30.Ba7 Rd6 31.Bb8 Accuracy: White = 76%, Black = 19%. 1–0

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White	EloW	Black	EloB	Res

l-i

1252

Vierjoki,T

1660

1–0

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