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Lajos Portisch vs Ervin Haag
Asztalos Memorial 2nd (1959), Balatonfured HUN, rd 8, Jun-??
English Opening: Agincourt Defense (A13)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Feb-03-08
Premium Chessgames Member
  Jonathan Sarfati: One of Portisch's worst defeats. It looks like he underestimated Black's single-minded ♔-side attack.
Aug-02-19
Premium Chessgames Member
  GrahamClayton: Once Haag played 15...♕g5, Portisch's position was lost. Maybe Portisch should have played 15. ♗c1 to stop 15....♕g5?
Aug-18-19
Premium Chessgames Member
  whiteshark:


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White to move

1) =0.00 (26 ply) 15.Bg2 Qg5 16.e3 Nxg3 17.fxg3 Qxe3+ 18.Rf2 Qxg3 19.Ne4 Qh2+ 20.Kf1 Nf5 21.Bxg7 Ne3+ 22.Ke2 Nxd1 23.Nf6+ Kd8 24.Rxd1 Qe5+ 25.Kf1 Rh4 26.Bxa8 d5 27.Rdd2 Qe3 28.Rh2 Qf4+ 29.Rdf2 Qc1+ 30.Kg2 Qg5+ 31.Kf1 Qc1+

2) =0.00 (26 ply) 15.Bxa8 Qg5 16.Bg2 Nxg3 17.fxg3 Qxg3 18.Ne4 Qh2+ 19.Kf2 Qh4+ 20.Kg1 Qh2+

3) =0.00 (25 ply) <15.e3> Nxf3+ 16.Qxf3 d5 17.cxd5 exd5 18.Kg2 Qg5 19.Rh1 O-O-O 20.Nxd5 Bxb2 21.Nxb6+ axb6 22.Qc6+ Kb8 23.Qxb6+ Kc8 24.Qc6+ Kb8 25.Qb6+

6.0 minute analysis by Stockfish 9 v010218

Aug-18-19
Premium Chessgames Member
  whiteshark:


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White to move

1) =0.00 (26 ply) <16.Bg2 []> Nxe3 17.fxe3 Qxg3 18.Ne4 Qh2+ 19.Kf2 Qh4+ 20.Kg1 Qh2+

2) -4.54 (26 ply) 16.Bxa8 Nxg3 17.fxg3 Qxg3+ 18.Bg2 Be5 19.Rf4 Bxf4 20.exf4 Rh2 21.Qf1 Rh3 22.Qf2 Rh1+ 23.Kxh1 Qxf2 24.Rb1 Nf3 25.Bxf3 Qxf3+ 26.Kg1 Qg3+ 27.Kf1 Qxd3+ 28.Ke1 Qxc4 29.Rd1 d5 30.Rd2 Qxf4 31.Rf2 Qh4 32.Nd1 Qc4 33.Be5 Qxb5 34.Nb2 Qb3

3) -4.38 (25 ply) 16.Ne4 Qh6 17.Bh5 d5 18.Nd2 Ne2+ 19.Qxe2 Bxb2 20.Ra2 Bc3 21.cxd5 exd5 22.d4 cxd4 23.Rc1 Rc8 24.exd4+ Kd7 25.Kg2 Qxh5 26.Qxh5 gxh5 27.Nf3 f6 28.Rh1 Rc4 29.Rc2 h4 30.gxh4 Bxd4 31.Rd2 Rg8+ 32.Kh2 Be5+ 33.Nxe5+ fxe5

6.0 minute analysis by Stockfish 9 v010218

Aug-18-19
Premium Chessgames Member
  whiteshark: So <16.Bg2 []> would have kept the balance:


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Black to move

1) =0.00 (26 ply) 16...Nxg3 17.fxg3 Qxe3+ 18.Rf2 Qxg3 19.Ne4 Qh2+ 20.Kf1 Nf5 21.Bxg7 Ne3+ 22.Ke1 Nxd1 23.Nf6+ Kd8 24.Rxd1 Qe5+ 25.Kf1 Rh4 26.Re1 Qg3 27.Bxa8 Qxd3+ 28.Kg1 d5 29.Bxd5 exd5 30.Re8+ Kc7 31.Nxd5+ Kd7 32.Nf6+ Kc7 33.Nd5+

2) =0.00 (26 ply) 16...Nxe3 17.fxe3 Qxe3+ 18.Rf2 Qxg3 19.Ne4 Qh2+ 20.Kf1 Nf5 21.Bxg7 Ne3+ 22.Ke1 Nxd1 23.Nf6+ Kd8 24.Rxd1 Qe5+ 25.Kf1 Rh4 26.Re1 Qg3 27.Bxa8 Qxd3+ 28.Kg1 d5 29.Bxd5 exd5 30.Re8+ Kc7 31.Nxd5+ Kd7 32.Nf6+ Kc7 33.Nd5+

3) +0.19 (25 ply) 16...Rd8 17.exd4 Bxd4 18.Qf3 Qd2 19.Rab1 Bxc3 20.Rfd1 Qc2 21.Rdc1 Qxb2 22.Rxb2 Bxb2 23.Rb1 Bd4 24.Kf1 Nd6 25.Qd1 Rc8 26.Qa4 Rc7 27.Qc2 Ke7 28.a4 Rcc8 29.Qd2 Rh2 30.Re1 Rch8 31.a5 Bf6

6.0 minute analysis by Stockfish 9 v010218

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