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Stefano Tatai vs Lajos Portisch
Las Palmas (1972), Las Palmas ESP, rd 4, Jun-02
Spanish Game: Morphy Defense. Modern Steinitz Defense (C72)  ·  0-1

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 9 v010218 (minimum 6s/ply)8.Nbd2 was played in Dvoirys vs N Davies, 1989 (1-0)11.Ng3 was played in Lasker vs Blackburne, 1896 (1-0) 11...exd4 12.cxd4 Qxe4 13.Bc2 Qe8 14.Nf5 Qd8 15.Nxg7 = +0.08 (22 ply) 12.d5 Na7 13.Bc2 c6 14.h3 cxd5 15.Nxd5 Nxd5 16.Qxd5 Be6 ⩲ +0.90 (23 ply) ⩱ -0.57 (24 ply) 13.cxd4 Qd8 14.d5 Nb4 15.Bb1 a5 16.Nf1 Na6 17.Bc2 Bg4 = -0.06 (24 ply) ⩱ -1.00 (25 ply) 17.Qd2 Bd7 18.Bb3 c5 19.dxc6 bxc6 20.Qf4 Qe7 21.Qg3 c5 = -0.12 (22 ply) 17...Bd7 18.a4 c5 19.dxc6 bxc6 20.Qd2 Qe7 21.Rd1 c5 ⩱ -0.99 (20 ply)better is 18.Qe1 Qd8 19.Qg3 Nc4 20.Qf2 Bd7 21.Bb3 Na5 22.Bf4 Nxb3 = -0.14 (22 ply) ⩱ -0.88 (23 ply) after 18...b6 19.Qd2 a5 20.a4 Ba6 21.Nb5 Re7 22.Rb1 f6 23.Rd1 better is 19.Qe1 Qh5 20.Qd2 h6 21.Qc2 Rfe8 22.Bf4 Bd7 23.Qd2 b5 ⩱ -0.56 (25 ply) ⩱ -1.09 (23 ply)better is 21.Re1 Rxe1+ 22.Qxe1 Nf6 23.Bd2 Bg4 24.Qf1 Re8 25.Nd4 ⩱ -0.75 (25 ply) ⩱ -1.28 (24 ply) 22.Bd2 Nxd5 23.Ng5 Qxd1 24.Raxd1 Nf6 25.Rfe1 Rfe8 ⩱ -0.95 (24 ply)-+ -3.85 (21 ply) 23.Rf2 Ne4 24.Rc2 Ng3 25.Kh2 Re1 26.Qxe1 Rxe1 27.Nxe1 -+ -3.12 (22 ply) 23...b5 24.Bc2 Bxh3 25.Bd3 Bd7 26.f5 Ng4 27.Bf4 Bxb2 -+ -5.44 (21 ply) 24.Bxd7 Nxd7 25.Qc2 b5 26.cxb5 axb5 27.Qc6 Nc5 28.Bd2 ⩱ -1.47 (27 ply)better is 24...Bxh3 25.Rf2 Ng4 26.gxh3 Qxh3 27.Bd2 Nxf2 28.Kxf2 -+ -7.15 (26 ply) ∓ -1.89 (23 ply) 25...Ne4 26.cxb5 axb5 27.f5 b4 28.Qc2 Bxf5 29.Bf4 Bd7 -+ -2.66 (22 ply) ∓ -1.79 (23 ply) 27.Bxb5 axb5 28.a4 Ra8 29.a5 Qxd5 30.Qxd5 Nxd5 31.f5 ∓ -1.64 (22 ply)better is 27...Ne4 28.Bxb5 Nc5 29.Qa3 axb5 30.Ne5 Bxe5 31.fxe5 -+ -2.80 (24 ply) ∓ -1.90 (25 ply) 29.Qxd5 Nxd5 30.f5 Re2 31.Rd1 Nb4 32.fxg6 hxg6 33.Rd2 ∓ -2.07 (27 ply) 29...Re4 30.Qxc7 Nh5 31.Rb1 Ng3 32.Ba3 Re2 33.Rbd1 Qe4 -+ -3.90 (25 ply)-+ -2.52 (24 ply) 32.Rf2 Ne2+ 33.Kh2 Re4 34.Bd2 Rxc4 35.Ne5 Re4 36.Nc6 Kf8 -+ -2.64 (23 ply)-+ -5.05 (27 ply); 33.Kf1 Nc3 34.Bd2 Nxd1 35.Rxd1 Re4 36.Rc1 Bd4 37.Rc2 Bb6 -+ -4.75 (25 ply)0-1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

Annotations by Stockfish (Computer).      [35434 more games annotated by Stockfish]

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Kibitzer's Corner
Feb-12-14
Premium Chessgames Member
  Tabanus: Believe it or not, 365Chess has this game played in Las Palmas 1972 (same players and game score).

Tatai did not play in Hastings 70/71 and 71/72.

Feb-13-14  whiteshark: <Las Palmas 1972> according to <Selected games of Lajos Portisch> by Egon Varnusz, 1979, (game 60, p.144-146), publishers: Corvina Kiado in coop with Batsford
Feb-14-14
Premium Chessgames Member
  Tabanus: Las Palmas 1972! Proofs:

http://hemeroteca.lavanguardia.com/... http://hemeroteca.abcdesevilla.es/n...

Feb-15-14
Premium Chessgames Member
  Tabanus: https://dl.dropbox.com/u/36231222/R..., the ultimate evidence.

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