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Phillip Viner vs Peter Leko
Australian Open (1992/93), Sydney AUS, rd 3, Dec-??
Indian Game: Spielmann-Indian (A46)  ·  0-1



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sac: 20...Nxg2 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Dec-10-05  morphynoman2: 20... Nxg2! and the game is over.
Premium Chessgames Member
  al wazir: White could have put up a better fight:

21. Nh6+ Bxh6 (21...Kf8 22. Ne5 Nxe1 23. Nhxf7) 22. Qxh6, and now if 23...Nxe1 then 23. Ng5!

After 23...Nf6 24. Bxf7+ Kh8 25. Rxc7 Qxc7 (25...Rxc7 26. Qf8+) 26. d5, I like white's chances.

Premium Chessgames Member
  agb2002: The bishop on b7 x-rays g2. This suggests 20... Nxg2:

A) 21.Kxg2 Nf4+

A.1) 22.Kg3 Ne2+ 23.Kg2 Nxc1

A.1.a) 24.Rxc1 Bxf3+ 25.Kxf3 b5

A.1.a.i) 26.Bxb5 Qd5+ and 27... Qxb5 wins an exchange.

A.1.a.ii) 26.Be2(d3) Rxc1 27.Bxc1 Qc3+ and 28... Qxc1 wins an exchange.

A.1.b) 24.Bxc1 b5

A.1.b.i) 25.Bxb5 Bxf3+ as in A.1.a.i.

A.1.b.ii) 25.Bd3 Qxd4 26.Ne3 (26.Nh6+ Bxh6 27.Qxh6 Qxd3 wins decisive material) 26... Rxc1 27.Rxc1 Rxc1 28.Qxc1 Qxd3 wins decisive material.

A.1.b.iii) 25.Be2 Rc2 looks very good for Black.

A.2) 22.Kf1 Bxf3 23.Ne5 (threatens Qxf4 and Nxf3) 23... Bxe5 24.Rxe5 (24.dxe5 Qxd2 wins) 24... Nd5 looks very good for Black.

A.3) 22.Kg1 Bxf3 23.Ne5 Bh6 saves the piece (24.Nxf3 Nh3+ and 25... Bxd2).

B) 21.Re2 Ndf4 wins an exchange at least.

C) 21.Red1 Ngf4 wins an important pawn.

May-21-20  Brenin: I found 20 ... Nxg2 21 Kxg2 Nf4+, expecting 22 Kf1 Bxf3 23 Ne5 Bxe5 (23 ... Bh6 loses to 24 Nxf7) 24 Rxe5, when Black has won a pawn and left White with a leaky K-side, but wasn't convinced that it was enough. Clearly it was.
May-21-20  Cheapo by the Dozen: Since material is dead even, I didn't worry much about White declining the sacrifice. And so I found the first four moves, and would have played them over the board with Speilmannesque faith. That said, when I got to Move 24 and looked around, my choice was

24 ... h5
25 Ne3 Qf4

The engine thinks that's a solid win too, but the game line is surely better.

May-21-20  mel gibson: I saw this one but I wasn't certain.

Stockfish 11 says:

20... Nxg2

(20. .. Nxg2 (♘f4xg2 ♔f1xg2 ♘d5-f4+ ♔g2-f1 ♗b7xf3 ♘g4-e5 ♗g7xe5 ♖e1xe5 ♘f4-d5 ♕d2-d3 ♕d6-f6 ♖c1-b1 e7-e6 ♗b2-c1 b6-b5 ♗c1-g5 b5xc4 b3xc4 ♕f6-g7 ♕d3xf3 ♖c7xc4 ♖b1-b7 ♖c4-c7 ♕f3-b3 ♖c7xb7 ♕b3xb7 ♖c8-c7 ♕b7-a8+ ♕g7-f8 ♕a8xf8+ ♔g8xf8 ♗g5-d2 ♖c7-b7 ♖e5-g5 ♖b7-b2 ♗d2-b4+ ♔f8-e8 ♔f1-e1 ♖b2-b1+ ♔e1-e2 ♖b1-h1 ♖g5-g3 ♖h1xh2 ♖g3-b3 h7-h5 ♔e2-f1 ♖h2-h4 ♗b4-c5 ♖h4-f4 ♗c5xa7 ♔e8-d7 ♔f1-g2) +2.75/40 138)

score for Black +2.75 depth 40

Premium Chessgames Member
  WorstPlayerEver: Too complicated for a Thursday IMO:

20. Ng4 Nxg2 21. Kxg2 Nf4+ 22. Kg3 Ne2+ 23. Kg2 Nxc1 24. Bxc1 b5 25. Be2 Rc2 26. Qg5 Qxd4 27. Kg3 Bxf3 28. Bxf3 Qc3 29. Qxe7 Rxc1 30. Rxc1 Qxc1

click for larger view

May-21-20  dumbgai: 52 years age difference between these two players.
Premium Chessgames Member
  Predrag3141: To exploit pins on the c and d files, I would have played 24 e5?, blowing about 2 pawns of advantage but still up 1.82. Other than that I would have played as Black did in the game.

What blinded me to the clear win was how much more valuable the pinning bishop was than the pinned knight.

May-21-20  drollere: what about 20. .. Nxg2, 21. Nh6+ ? it seems that white's pieces are actually better arrayed for an attack.
Premium Chessgames Member
  chrisowen: Cataract h6 no?
Premium Chessgames Member
  beatgiant: <drollere>
Yes, <al wazir> made the same suggestion above. I was looking at 20...Nxg2 21. Nh6+ Bxh6 22. Qxh6 <N(5)e3+> but it looks good for only rough equality.

Stockfish here suggests 20...Nxg2 21. Nh6+ Bxh6 22. Qxh6 <Qf4> and claims a large advantage for Black, but it would take a lot of analysis to confirm that.

May-21-20  RandomVisitor: White was very much in this game up to move 18 - not so much after that:

click for larger view


<47/83 08:54 0.00 18.Re4 Qf6 19.Rae1> g5 20.g3 Nh3 21.Ng1 Qh6 22.Ng4 Qh5 23.Qd1 Rxc4 24.bxc4 f5 25.Nf6+ Nxf6 26.Qxh5 Nxh5 27.Rxe7 Nxg1 28.Rxb7 Nf3 29.Rd1 Rf7 30.Rb8+ Rf8

Premium Chessgames Member
  beatgiant: <drollere>,<al wazir> On a brief look, 20...Nxg2 21. Nh6+ Bxh6 22. Qxh6 Qf4 23. Ng5 Nge3+ is simple and convincing, because of the fork with 24. Ke2 <Qxf2+> 25. Kxf2 Ng4+, winning back the queen.
May-21-20  RandomVisitor: The current Stockfish build takes a long look at the position after 20.Ng4

click for larger view


<60/98 1:40:58 -3.48 20...Nxg2 21.Kxg2 Nf4+ 22.Kf1> Bxf3 23.Ne5 Bxe5 24.Rxe5 Qf6 25.Rc3 Bg2+ 26.Kg1 Bb7 27.a4 Qh4 28.Rg3 Bd5 29.Bxd5 Rc2 30.Qe1 Nxd5 31.Rxd5 Rxb2 32.Re5 Qxd4 33.Re2 Rxe2 34.Qxe2 e6 35.Kg2 Qd5+ 36.Qf3 Qxf3+ 37.Rxf3 Kf8 38.Kf1 Ke7 39.Re3 h5

May-21-20  drollere: "<drollere> Yes, <al wazir> made the same suggestion above. I was looking at 20...Nxg2 21. Nh6+ Bxh6 22. Qxh6 <N(5)e3+> but it looks good for only rough equality."

i didn't see <al wazir>'s note, obviously, but it is striking that the pawn sacrifice opens up the attacking diagonal for white.

Premium Chessgames Member
  al wazir: <beatgiant: On a brief look, 20...Nxg2 21. Nh6+ Bxh6 22. Qxh6 Qf4 23. Ng5 Nge3+ is simple and convincing>. Okay, I see it now. (It took me a while.) White ends up at least an exchange and a ♙ down. Thanks.
May-22-20  saturn2: I failed very closely. I saw everything of the game line except before Qc6 black has to exchange rooks on the c file. I dismissed the whole combination because if there remains still one rook on c1 black cannot double attack Kf3 and c1. And R+P for 2N would not have been enough.

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