31 Jan 2020

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.g3 Nc6 4.Bg2 Nf6 5.O-O)

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.g3 Nc6 4.Bg2 Nf6 5.O-O)
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1.f4 d5 A03 Bird Opening: Dutch Variation 2.Nf3 c5 3.g3 Nc6 4.Bg2 Nf6 5.0-0 A03 Bird's Opening with 1...d5 g6 6.c3 6.d3= 6...Bg7 7.e3N 7.d3= keeps the balance. Qb6 8.Kh1 0-0 9.Qe1 Qa6 10.Be3 b6 11.Qd2 Be6 12.Na3 Qc8 13.Nc2 Bh3 14.Rae1 Bxg2+ 15.Kxg2 Qb7 16.Kg1 Ng4 17.Bf2 Nxf2 18.Rxf2 d4 19.c4 a6 20.b3 b5 21.Na3 b4 22.Nc2 Acimovic,G (1694)-Rakic,T (1918) Subotica 2014 0-1 (75) 7.Ne5 0-0 8.Nxc6 bxc6 9.d3 Qb6 10.Kh1 Bf5 11.Qe1 d4 12.Na3 Nd5 13.Nc4 Qc7 14.Bd2 e5 15.fxe5 Bxe5 16.cxd4 cxd4 17.Rc1 Rac8 18.Bg5 Bg7 19.Qa5 Qd7 20.Qc5 Bh3 21.Na5 Bxg2+ Forgacs,J (2300)-Rovid,K (2385) Hungary 1995 0-1 (34) 7.h3 0-0 8.d3 Ne8 9.Nbd2 e5 10.fxe5 Nxe5 11.Qe1 Nc6 12.Nh2 Be6 13.Ndf3 Qd7 14.Ng5 Nd6 15.Bf4 Rad8 16.g4 h6 17.Nxe6 fxe6 18.Qd2 Kh7 19.g5 h5 20.Rae1 e5 1/2-1/2 (20) Roellig,R (1744)-Bachmann,N (1802) Offenbach 2012 7...Bg4 7...0-0 8.d4 8.d3= 8...Qb6 8...Qd7 9.Qc2 9.Nbd2= 9...0-0 10.Nbd2 10.Ne5 10...Bf5 Black should play 10...Rfd8 11.Qd1 11.Qb3 11...Ne4 Better is 11...e6 12.Nxe4 Bxe4 12...dxe4?! 13.Nd2± 13.Ne5 13.Ng5= 13...Bxg2 14.Kxg2 Rad8 14...Nxe5 15.fxe5 f6 15.Rb1 15.Nf3 15...f6 15...Nxe5 16.fxe5 f6 17.exf6 Rxf6 16.Nd3!= cxd4 17.exd4 Rfe8 17...e6= 18.Nc5 18.h4± 18...e5 19.fxe5 fxe5 20.Bg5 Rd6! 21.Nb3 21.Qd2= remains equal. 21...exd4 22.cxd4 Nxd4 Much weaker is 22...Bxd4?! 23.Qf3= 23.Nxd4 Bxd4 23...Qxd4 24.Qxd4 Bxd4 24.Qf3!= Qf7+ would kill now. Qc7? 24...Bf6 25.Bf4? 25.Rbe1!+- Rb8 26.Bf4 25...Qc2+ 26.Kh1
26...Re2! 27.g4 Rd7 Don't go for 27...Rf2? 28.Rxf2 Qxb1+ 29.Rf1+- 28.Rbc1 28.Rbd1 is a better defense. Bb6 29.Rde1 Rxe1 30.Rxe1 28...Qxb2?? 28...Qe4-+ 29.Qxe4 Rxe4 29.Rc8+ Kg7
30.Bg3 30.Be5+! Kh6 30...Bxe5 31.Qf8# 31.Qf4+ g5 32.Qf6# 30...Bf6+-
31.g5! Rf7 31...Bxg5 32.Qf8# 32.gxf6+ Qxf6 33.Qxf6+ Rxf6 34.Rxf6? White has to play 34.Rc7++- Kh6 35.Rxf6 34...Kxf6 Endgame KRB-KR 35.Rc7 35.Rf8+± Ke7 36.Rf2 35...Rxa2 36.Rxb7 h5 36...Ke6!= 37.Rd7 Ra5 38.Rd6+ Kf5 39.Rd7 g5 40.Kg2 h4 41.Bf2 a6 42.Kf3 Ra3+ 43.Kg2 43.Be3!? 43...Ke4 44.Re7+ Kf5 45.Rf7+ Ke6 46.Rg7 Kf6 47.Bd4+ Kf5 48.Rf7+ Ke4 49.Bf2 49.Bh8 seems wilder. Ra2+ 50.Kh3 d4 51.Re7+ Kf4 52.Be5+ 49...Ra2 50.Re7+ Kd3 51.Re3+ Kc4 52.Re5 d4 53.Rxg5 d3 54.Rg4+ Kc3 55.Kf3?
55.Rg6= 55...d2!-+ 56.Rg1?
56.Rd4 Ra1 57.Rxd2 Kxd2 58.Bxh4 56...Kd3? 56...Kc2!-+ 57.Ke2 Ra4 57.Bxh4 Strongly threatening Bg5. Rc2? 57...Kc2= 58.Rg2 58.Ke2 Ra5 58...Ra3+ 59.Ke4 Ra4+ 60.Ke3 Rxh4 61.Rxd2+ Kb3 58.Rg8?? - 58.Bg5+- Rc3 59.Rd1 Kc2+ 60.Ke2 58...Rc3?? 58...d1Q+ - mates 59.Kf4 Rc4+ 60.Ke5 Qe2+ 61.Kf5 Qf3+ 62.Kg6 Rc6+ 63.Kg5 Qd5+ 64.Kf4 Rc4+ 65.Kg3 Qxg8+ 66.Kf3 Qg4+ 67.Kf2 Rf4+ 68.Ke1 Qg1# 59.Kf2?? 59.Rd8++- Kc4+ 60.Ke2 59...Kc2 60.Rd8? 60.Rg1 60...d1Q 61.Rxd1 Kxd1 KR-KB 62.Bg3 a5 Black mates. 63.h4 Rc8 64.Be5 a4 65.Kg3 Ke2 66.Kg4 Ke3 67.h5 Ke4 68.Bg7 Rg8 69.h6 a3 70.Kg5 a2 71.Kh5 Kf5 72.Ba1 Rg1 Accuracy: White = 24%, Black = 38%.
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WhiteEloWBlackEloBRes
Kojjootti1549Vierjoki,T15580–1

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