9 Feb 2020

A06 Réti Opening: 1.Nf3 d5 (1.b3 Nf6 2.Bb2 e6 3.Nf3 d5)

A06 Réti Opening: 1.Nf3 d5 (1.b3 Nf6 2.Bb2 e6 3.Nf3 d5)
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1.b3 Nf6 A01 Nimzo-Larsen Attack: Indian Variation 2.Bb2 e6 3.Nf3 d5 A06 Réti Opening: 1.Nf3 d5 4.d3 Be7 4...c5 5.Nbd2 Nc6 6.e4 Be7 7.g3 0-0 8.Bg2 b6 9.0-0 Bb7 10.Re1 Qc7 11.e5 Nd7 12.Qe2 Rae8 13.Nf1 f6 14.exf6 Bxf6 15.Bxf6 Nxf6 16.Ne5 Nd4 17.Qd1 Nc6 18.Qe2 Nd4 19.Qd1 Tereladze,S (2166)-Gavasheli,A (2190) Konya 2016 1/2-1/2 5.Nbd2 0-0 5...c5 6.e3 Nc6 7.Be2 Bd7 8.0-0 0-0 9.Ne5 Nxe5 10.Bxe5 Bc6 11.Nf3 Nd7 12.Bb2 Bf6 13.d4 Re8 14.Re1 a5 15.Ne5 Qb6 16.Nxd7 Bxd7 17.dxc5 Qxc5 18.Bxf6 gxf6 19.c4 Bc6 20.cxd5 Elias Arguelles,M (1638)-Martin Arranz,L (1714) Barcelona 2017 1/2-1/ 2 (74) 6.e4 6.e3= 6...c5 7.e5N 7.Ne5= 7.c4 b6 8.g3 Bb7 9.Qe2 Na6 10.a3 Nc7 11.Bg2 Nd7 12.0-0 Re8 13.Ne5 f6 14.Nxd7 Qxd7 15.Rad1 f5 16.cxd5 exd5 17.e5 Ne6 18.f4 b5 19.h4 a5 20.Bh3 g6 21.Nf3 a4 Ivanov,V (1968)-Gudkov,G (1940) Petrozavodsk 2013 0-1 7...Nfd7 8.c3 8.g3 8...Nc6 9.d4 cxd4 9...f6! 10.Bb5 fxe5 11.Bxc6 bxc6 12.dxe5 Qc7 10.cxd4 Qb6 10...f6 11.Bd3 f6 11...Re8= 12.0-0 fxe5 13.dxe5 13.Nxe5 is superior. Ndxe5 14.dxe5 13...Nc5= 14.Bb1 14.Bc2 should be considered. 14...Bd7 14...a5= 15.Qc2 15.a3 15...g6 16.h4 16.a3= keeps the balance. 16...Nb4 Black should try 16...Rf4 17.Qc3 Rac8 17...Nca6= 18.Qe3!
18...Bb5 18...Ncd3!= 19.Bd4 19.Bxd3 Qxe3 19...Qa6 19.Rd1 19.a3± 19...Bd3! White is under pressure. 20.Qh6 20.Nd4 20...Bxb1 Better is 20...Rf7! 21.h5 Bxb1 22.Raxb1 Bf8 21.Raxb1 Nxa2? 21...Ncd3 22.Bd4 Qa6 22.Ng5? 22.h5= and White has nothing to worry. gxh5 23.Bd4 22...Bxg5!-+ 23.Qxg5 Nd3 24.Rf1 Nxf2 25.Kh2 Nd3? 25...Rc2-+ 26.Ba3 Rf5 26.Nf3? 26.h5 was necessary. 26...Nxb2 27.Rxb2 Nc3 28.Qh6 Ne4 29.h5 gxh5 30.Qxh5? 30.Rbb1 30...Rf5 31.Qh6 Qc7? 31...Rf7-+ White must now prevent ...Rg7. 32.Rc1 Rxc1 33.Qxc1 Kg7 32.Qxe6+± Rf7 33.Qxd5 Qe7? Wrong is 33...Qc6? 34.Qxf7+! Kxf7 35.Nd4+ Ke7 36.Nxc6+ Rxc6 37.Rf4+- 33...Nf6 34.Qd4 Rd8 34.Qxe4+- Qe6 35.Rff2 Qh6+ 36.Qh4 Qe6 37.Qh5 Rg7 38.Ng5? 38.Nd4+- Qg6 39.Qh3 38...Qxe5+ 39.g3 Qxg5 40.Qxg5 Rxg5 Endgame KRR-KRR 41.Rf3 Rc7 42.Rd2 Rgc5 43.Rf4 Rc2 44.Rxc2 Rxc2+ KR-KR 45.Kh3 Rb2 46.b4 Kg7 47.Kg4 b6 48.Kg5 a5 49.bxa5
49...bxa5 49...Rb5+! 50.Kh4 bxa5 50.Rc4? - 50.Rf5= 50...Rb5+ Black mates. 51.Kf4 Rb4 52.Rxb4 axb4 KPP-KP 53.Ke4 Kg6 54.Kd4 Kg5 55.Kc4 Kg4 56.Kxb4 Kxg3 57.Kc3 h5 58.Kd2 Kg2 59.Ke2 h4 Accuracy: White = 24%, Black = 39%.
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WhiteEloWBlackEloBRes
Kojjootti1577Vierjoki,T15770–1

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