11 Jan 2020

A01 Nimzowitsch-Larsen Opening (1.b3 d5 2.Bb2 Bf5)

A01 Nimzowitsch-Larsen Opening (1.b3 d5 2.Bb2 Bf5)
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1.b3 d5 A01 Nimzo-Larsen Attack: Classical Variation 2.Bb2 Bf5 A01 Nimzowitsch-Larsen Opening 3.e3 e6 4.Be2 4.h3 h6 5.Nc3 Bh7 6.d4 Nf6 7.Bd3 Bxd3 8.Qxd3 Nbd7 9.0-0-0 Bb4 10.Nge2 0-0 11.g4 c5 12.dxc5 Qe7 13.Rhg1 Nxc5 14.Qd4 Nce4 15.Nxe4 dxe4 16.g5 hxg5 17.Qe5 Rfd8 18.Rxd8+ Rxd8 Jobava,B (2710)-Yu,Y (2677) Wijk aan Zee 2014 1-0 (35) 4.d3 Nf6 5.g3 Bd6 6.Bg2 0-0 7.Ne2 c6 8.Nd2 e5 9.h3 Qe7 10.e4 Bd7 11.Nc3 dxe4 12.dxe4 Ba3 13.Bxa3 Qxa3 14.0-0 Na6 15.Nc4 Qb4 16.Qe1 Qe7 17.a4 Rad8 18.a5 Nb4 Patrick,V (1848)-Shetty,A (2380) Greensboro 2018 0-1 4...Nf6 5.h3N 5.g4 Bg6 6.h4 h5 7.g5 Nfd7 8.d3 Nc6 9.Nd2 Qe7 10.a3 e5 11.Nf1 f6 12.Nh3 Bf7 13.Ng3 g6 14.gxf6 Nxf6 15.Ng5 Bh6 16.Nxf7 Qxf7 17.b4 a6 18.a4 Qe7 19.c3 0-0 Kunz,K (2186)-Zankl,T (1987) Passau 1999 1-0 (50) 5.d3 h6 6.Nd2 Nbd7 7.Ngf3 Bh7 8.0-0 Be7 9.Re1 0-0 10.Bf1 Nc5 11.a4 a5 12.g3 Nfd7 13.e4 c6 14.h4 Bf6 15.e5 Be7 16.Bh3 b5 17.axb5 cxb5 18.Kh2 Qc7 19.Nd4 Rfb8 Arribas Lopez,A (2494)-Candela Perez,J (2393) Madrid 2013 0-1 (58) 5.f4 c5 6.Nf3 Bd6 7.0-0 Nc6 8.d3 Qe7 9.Qe1 0-0-0 10.a3 h6 11.b4 cxb4 12.axb4 Bxb4 13.Qc1 Bc5 14.d4 Bb6 15.c4 dxc4 16.Bxc4 Kb8 17.Nc3 Rhg8 18.Ba3 Qc7 19.Nb5 Qc8 Zehnter,S (2109)-Schmid,R (2057) Schweinfurt 2007 1/2-1/2 (39) 5...Nbd7 6.Nf3 h6 7.d3 7.d4= 7...Bd6 7...a5 8.Nh4 8.0-0= 8...Bh7 9.Nd2 9.c4= 9...0-0 9...e5 10.Nhf3 10.c4 10...c5 10...e5 11.g4 11.c4= 11...Ne8 11...Rc8 12.h4 12.Rg1 12...Qc7 12...e5 13.g5 13.c4 13...h5 13...e5= remains equal. 14.Ng1 14.0-0± 14...g6 14...b5= 15.Nf1? 15.c4± 15...b5 15...Be5 16.c3 Nd6 16.Qd2 16.c4 16...a5 16...b4 17.f4 Much worse is 17.Qc3 Be5 17.Nf3= keeps the balance. 17...Rc8 17...a4 18.0-0-0 18.c4 18...c4 19.dxc4 bxc4 20.bxc4 dxc4 White must now prevent ...c3. 21.c3? 21.Qc3 f6 22.gxf6 21...Nb6 22.Qc2 Nd5 23.Nf3 Qc5? 23...Bc5-+ ...Nd6 is the strong threat. 24.Kb1 Nd6 24.Rd4 24.N3d2= 24...Qb5 24...Ng7! 25.Rxc4 Qa7 25.N1d2? 25.Ne5!= and White is okay. 25...Nb6? 25...Nxe3-+ 26.Qb1 Bc5 26.Ne4 Be7! 27.Nfd2 27.Ne5 27...Ng7 And now ...Nf5 would win. 28.Ng3 28.a4!= Qa6 29.Ng3 28...Bc5 28...a4 29.Nb1 Bc5 29.Re4? 29.Rxc4 Nxc4 30.Nxc4 29...Be7? 29...Nf5-+ 30.Nxf5 exf5 30.Nf3 30.a4!= Nxa4 31.Bxc4 Qxb2+ 32.Qxb2 Nxb2 33.Kxb2 30...Rfd8 30...a4 31.a3 Bc5 31.Rd4 31.Kb1 31...Nd5 31...a4 32.Rxd8+ Bxd8 32.Re4? 32.Qd2 32...Bc5 33.Bxc4 Bxe3+? Black should play 33...Qb6!-+ 34.Qb3 Nf5 35.Nxf5 gxf5 34.Rxe3= Qxc4 34...Rxc4 35.Rd3 Rb8 35.Re4 Qc7 Black should try 35...Qc5! 36.Rd4 Qc7 36.c4? 36.Rd1= 36...Nxf4? 36...Nb4-+ 37.Qe2 Nd3+ 38.Kc2 Nf5 37.Be5 37.Ne5= Nd5 38.Kb1 37...Nd3+ 38.Kb1? 38.Qxd3! Rxd3 39.Bxc7 Rxf3 40.Bf4 38...Rb8+ 38...Nxe5 39.Nxe5 Nf5 40.Nxf5 gxf5 39.Ka1-+ Nxe5 40.Rxe5 40.Nxe5 Nf5 41.Nxf5 gxf5 42.Ree1 40...Rb4? 40...Nf5-+ aiming for ...Nd4. 41.Nxf5 gxf5 41.Rc1! Rc8? 41...Nf5 stays ahead. 42.Ne4 Nd4 42.c5?? 42.Ne4+- 42...Qc6? 42...Nf5-+ 43.Nxf5 gxf5 43.Ne4 Nf5? Better is 43...Ne8! 44.Nf6++- Kg7 45.Re4? 45.Qc3+- Bg8 46.Ree1 45...Rd8? 45...Rb5= and Black stays safe. 46.Rxb4 axb4 47.Rd1? 47.Ne5+- Qa6 48.Qb2 47...Rxd1+= 48.Qxd1 Qxc5 Hoping for ...Bg8. 49.Kb1? 49.Qd2= 49...Ne3! 50.Qd3
50.Ne8+ Kf8 51.Qd6+ Qxd6 52.Nxd6 50...Nc4? 50...Ng4!-+ 51.Ne8+ Kf8 51.Ne4 White has some pressure. Na3+?
51...Qc8= and Black has nothing to worry. 52.Kb2? 52.Qxa3!+- Threatening mate with Qb2+. bxa3 53.Nxc5 52...Nc4+? 52...Qc6± 53.Kb3+- White is clearly winning. Na5+ 54.Ka4 Qb6 54...Nb7 55.Qd4+ Qxd4 56.Nxd4 Kg8 57.Kxb4 f5 55.Qd4+ Qxd4 56.Nxd4 Endgame KBN-KNN Nc4 57.Kxb4 Ne3 58.a4 Nd5+ 59.Kb5 f5 60.gxf6+ Kf7 61.a5 e5 62.Ng5+ Accuracy: White = 20%, Black = 10%.
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Kojjootti-Vierjoki,T-1–0

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