17 Jan 2020

A01 Nimzowitsch-Larsen Opening (1.b3 e5 2.Bb2 Nc6)

A01 Nimzowitsch-Larsen Opening (1.b3 e5 2.Bb2 Nc6)
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1.b3 e5 A01 Nimzo-Larsen Attack: Modern Variation 2.Bb2 Nc6 A01 Nimzowitsch-Larsen Opening 3.f3N 3.d3 d5 4.g3 4.Nf3 Bd6 5.g3 Nge7 6.Bg2 a5 7.a3 0-0 8.0-0 f5 9.c4 d4 10.e3 Bc5 11.exd4 exd4 12.Nbd2 Rb8 13.Re1 Ng6 14.h4 Qf6 15.Ng5 Nd8 16.Bd5+ Kh8 17.Nxh7 1-0 (17) Moor,O (2195)-Moor,R (2280) Zürich 1997 4.e3 Bc5 5.Nf3 d4 6.exd4 exd4 7.Be2 Nf6 8.0-0 0-0 9.a3 a5 10.Re1 Qd6 11.b4 axb4 12.axb4 Rxa1 13.bxc5 Rxb1 14.cxd6 Rxd1 15.Rxd1 cxd6 16.Nxd4 Re8 17.Bf3 Nxd4 18.Bxd4 Bg4 Romero Munoz, J-Rodriguez Berganza,C Valladolid 1988 1/2-1/2 (39) 4...g6 5.Bg2 Bg7 6.Nd2 Nge7 7.e3 0-0 8.Ne2 Be6 9.0-0 Qd7 1/2-1/2 (9) Petrasova,L-Hausner,I Brno 1969 3.Nc3 d5 4.e3 a6 5.Be2 Nf6 6.d3 Bd6 7.Nf3 Qe7 8.a4 0-0 9.0-0 Re8 10.e4 d4 11.Nb1 Nd8 12.Nbd2 c5 13.Nc4 Bc7 14.Bc1 h6 15.h3 Nc6 16.Bd2 Be6 17.Nh2 b5 Kerr,G-Cajal,A (2174) Sao Caetano do Sul 1999 0-1 (45) 3.d4 g6 4.Nf3 Bg7 5.e3 Nge7 6.c4 e4 7.Nfd2 f5 8.Be2 d6 9.Nc3 0-0 10.0-0 Bd7 11.a3 a5 12.Qc2 Kh8 13.Rae1 Be8 14.f3 exf3 15.Bxf3 Bf7 16.d5 Ne5 17.Bd1 Bg8 Razo,B-Benko,P Ventura 1971 0-1 (37) 3...d5 4.Nc3 Nf6 5.e3 Be7 5...d4 6.exd4 exd4 6.Bb5 Bd7 6...0-0 7.Nge2 Bd7 7.Bxc6 7.Nce2 7...Bxc6 7...bxc6 8.Nge2 0-0 8.Nh3 8.d4 8...0-0 8...d4 9.exd4 Qxd4 9.Nf2 9.d4 9...d4 10.exd4! exd4 Don't play 10...Qxd4 11.Qe2 11.Ne2 Bc5 12.d3? 12.a4 12...Re8 13.a3 13.0-0 was necessary. 13...Qd7 13...Nd5-+ 14.0-0 Ne3 14.b4 14.Qd2 14...Bb6!-+ 15.0-0 Rad8 15...Nd5-+ Hoping for ...Ne3. 16.Qd2 Ne3 16.Re1
16.Nf4 keeps fighting. 16...Qf5? 16...Nd5!-+ Black wants to play ...Ne3. 17.Qd2 Ne3 17.Ng3 17.a4= remains equal. a6 18.Qd2 17...Qg6 17...Qd7 18.Rxe8+ Rxe8 18.Nge4? 18.Qd2 18...Nh5 18...Nd5-+ is more deadly. 19.Ng3 Ne3 19.Qd2 19.Nh3 19...f5 20.Ng5? 20.Ng3 nothing else works. 20...h6 21.Rxe8+ Rxe8 22.Ngh3? 22.Nge4 22...Bd7? 22...Bxf3-+ 23.Ng5 Bxg2 24.Kxg2 hxg5 23.Nf4 Nxf4 24.Qxf4
24...Re2 24...Qe6!-+ has better winning chances. ( -> ...Qe1+!) 25.Rf1 c5 25.Bxd4 Rxc2 26.Bxb6 26.h4 26...axb6 Don't do 26...cxb6 27.Re1 26...Qxb6-+ 27.d4 Qe6 27.Re1 27.h4 27...b5 27...Qf6 28.d4 Rc3 28.h3 28.d4!= 28...Qb6 Black mounts an attack. 28...Qd6 29.Qxd6 cxd6 29.Qe3 29.d4= 29...Qxe3 30.Rxe3 Endgame KRB-KRN Ra2 Black should play 30...Rc1+ 31.Kh2 Kf7 31.Re7 31.d4= keeps the balance. 31...Bc6 32.Rxc7 Better is 32.Re5 32...Rxa3 33.Kh2 33.g4 33...Rb3-+ 34.Rc8+ Kh7 34...Kf7 35.g4 Rxb4 36.gxf5 Rf4 35.Rd8 Rxb4 36.Nd1 Rb1 37.Ne3 Kg6 37...f4-+ 38.Ng4 b4 38.Rd6+ Kg5 White must now prevent ...Kf4. 39.Kg3? 39.d4 39...f4+-+ 40.Kf2 fxe3+ 41.Kxe3 KRB-KR b4 42.Kd2 Rb2+ 43.Kc1 Rxg2 44.Rd4 b3 45.Rb4
45...b2+! 46.Rxb2 Rxb2 Black mates. 47.Kxb2 Bxf3 KB-KPP 48.Kc3 Kh4 49.Kd4 Kxh3 KB-KP 50.Ke5 Kg3 51.d4 h5 52.d5
52...Bxd5! 53.Kxd5 h4 54.Kd6 h3 55.Kc7 h2 56.Kxb7 h1Q+ Accuracy: White = 22%, Black = 29%.
0–1
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