22 Dec 2014

E14 Queen's Indian: Classical Variation (4.e3) (1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.e3 Be7 6.Nc3 O-O 7.Be2 d6 8.O-O c5)

E14 Queen's Indian: Classical Variation (4.e3) (1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 Bb7 5.e3 Be7 6.Nc3 O-O 7.Be2 d6 8.O-O c5)

It is a rare thing that I play any other games than either team match games or tournaments these days but this one is neither, it is a challenge I created apparently in June this year. This game lasted over five months, so it is one of the longest games I have played but I am quite sure that there will be longer games as time goes by. My move speed is too slow these days to indicate something different. All I can say from this game is that mistakes were made on both sides and this was by no means an easy game for me. I have added more puzzles to mate in ones and twos today.

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1.d4 1.c4 Nf6 2.Nf3 e6 0-1 (55) Nikolic,Z (2254)-Cvetanovic,U (2164) Pozarevac 2009 1...Nf6 2.c4 e6 3.Nf3 3.a3 b6 1-0 (30) Krottki,M-Wenbo, D Dos Hermanas 2004 4.Nc3 Bb7 5.e3 Be7 0-1 (35) Frimanslund,B (1521) -Kopperud,V (1742) Drammen 2018 3...b6 4.a3 E12 Queen's Indian Defense: Petrosian Variation Bb7 5.e3 5.Nc3 Be7 0-1 (55) Nikolic,Z (2254) -Cvetanovic,U (2164) Pozarevac 2009 5...Be7 6.Nc3 0-0 6...c5 7.Be2 d6 8.0-0 1-0 (30) Krottki,M-Wenbo,D Dos Hermanas 2004 7.Be2 d6 8.0-0 c5 E14 Queen's Indian: Classical Variation (4.e3) 8...d5= keeps the balance. 8...Nbd7 9.b3 Ne4 10.Nxe4 Bxe4 11.Nd2 Bb7 12.Qc2 f5 13.Bd3 Bf6 14.Bb2 g6 15.e4 f4 16.Rfe1 e5 17.d5 h5 18.b4 Bg7 19.f3 g5 20.Nb3 Nf6 21.c5 g4 22.Qe2 Bc8 23.Ba6 Nikolic,Z (2254)-Cvetanovic,U (2164) Pozarevac 2009 0-1 (55) 8...Ne4 9.Nxe4 Bxe4 10.Nd2 Bb7 11.e4 Nd7 12.f4 f5 13.d5 exd5 14.exd5 Bf6 15.Nf3 Nc5 16.Ng5 h6 17.Nf3 a5 18.Nd4 Bxd4+ 19.Qxd4 Nb3 20.Qc3 Nxa1 21.Bd2 Qf6 22.Qg3 Nc2 23.Bc3 Frimanslund,B (1521) -Kopperud,V (1742) Drammen 2018 0-1 (35) 9.Qc2N 9.d5!± 9.b4 cxd4 10.Nxd4 Nbd7 11.Bb2 Ne4 12.Nxe4 Bxe4 13.Qd2 Rc8 14.Rac1 Bb7 15.Nb5 d5 16.Nxa7 Ra8 17.Nb5 dxc4 18.Bxc4 Nf6 19.Qc3 Ba6 20.Rfd1 Qe8 21.Nc7 Qc8 22.Nxa8 Bxc4 23.Qxc4 Qxc4 Krottki,M-Wenbo,D Dos Hermanas 2004 1-0 9...cxd4 9...d5 10.exd4 10.Nxd4 Qc8 11.e4 10...Nbd7 10...d5= 11.Bf4 11.b4 11...Rc8 11...d5= 12.Nb5 12.b4 12...d5 12...Nh5!= 13.Bxd6 a6 14.Bxe7 Qxe7 13.Nxa7± Ra8 14.Nb5 White is in control. dxc4 15.Qxc4 But not 15.Bxc4?! Rc8 15.Bc7± Qc8 16.Rfc1 16.Bxc4 Nd5± 15...Nd5 16.Bg3 16.Bc1± 16...Ba6 16...N7f6 17.Qb3 17.Qd3 17...f5? 17...N7f6± 18.Be5 Nxe5 18...N7f6± 19.Rfc1 Qd7 19.Nxe5 Bf6 20.Bc4 Bxe5 20...Bb7± 21.g3 Kh8 21.dxe5+- Kh8 21...Bxb5 might work better. 22.Bxb5 22.Qxb5 Ra5± 22...Ra5 22.Nd6 22.Rfd1+- 22...Bxc4± 23.Qxc4 Qg5 24.f4 24.Rad1± 24...Qg4 Better is 24...Qh4 25.Rf3 Qh4 25...g5± 26.Raf1 Qe7 26...Rad8± 27.Rd3 Qe7 27.Rh3 27.Qc6+- 27...Rad8 28.Qe2 Rxd6? 28...g5± 29.exd6+- Qxd6 30.Qh5
30...h6 31.Qf3 31.Qd1+- 31...Rc8± 32.Qf2 32.Qd3! 32...Kg8 32...Rc4± was worth a try. 33.Qd4 b5 33...Rc5± 34.Rd3 Qc6 34.Rg3+-
34...Rc7 34...Qd7 35.b3 Rc6 35.Rb3? 35.h3+- 35...Rc4 36.Qa7 36.Qd2!± 36...Qc5+? 36...Nxf4= 37.Qf2 37.Rxb5 leads to mate. Ne2+ 38.Kf2 Qf4+ 39.Ke1 Rc1+ 40.Kxe2 Rc2+ 41.Ke1 Qd2# 37...Qc6 37.Qxc5+- Rxc5 Endgame KRR-KRN 38.g3 Kf7 39.Rf2 Kf6 40.Kg2 g5 41.Rd3 b4 42.Rb3 42.a4+- 42...bxa3± 43.bxa3 Ra5 44.Kf3 44.fxg5+ hxg5 45.Rc2 44...Ra6 44...gxf4± was necessary. 45.gxf4 Ra4 45.Ra2 Ra4 46.fxg5+ hxg5 47.Ra1 White should try 47.Rc2± 47...f4 47...e5!= 48.gxf4 White should play 48.Rb5+- 48...Nxf4? 48...gxf4± is a better defense. 49.Rb5 Kf5 49.Rb4+- Rxb4? 49...Ra8 50.h4 Nd5 50.axb4 KR-KN. White is clearly winning. Nd5 51.Rb1 Nc3 52.Rb3 Nb5 aiming for ...Nd4+. 53.Ke4 Nd6+ 54.Kd4 g4 55.Kc5 Ne4+ 56.Kc6 Kf5 57.b5 Nd2 58.Rb4 Accuracy: White = 29%, Black = 20%.
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WhiteEloWBlackEloBRes
Vierjoki,T1879K_Nyaffy16241–0

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