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Viktor Erdos vs Hedinn Steingrimsson
European Team Championship (2017), Hersonissos GRE, rd 1, Oct-28
Queen's Gambit Declined: Orthodox Defense. Main Line (D63)  ·  1-0



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sac: 19.Rxd5 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Oct-29-17  Andrew Chapman: Black is lost after Bxc5; the engine gives Kg7 as best.
Premium Chessgames Member
  HeMateMe: the end was swift and brutal. I wonder why black played 14...gxf6? It blew open his kingside.
Oct-18-19  goldfarbdj: I saw the first couple of moves, which is more than I usually get for a Friday.
Premium Chessgames Member
  al wazir: I thought 20...Bxd5 was a bad move. Black needs to defend f6. And after 21. Qg4+, 21...Kh8 holds out longer. Now if 22. Nh5, then 22...Rg8 defends. If instead 22. Nf5 Rg8 23. Qh5 Bf8 24. Nxh6, then 24...Rg7. Now if 25. Nxf7+, then 25...Kg8; if 25. Nf5+/Ng4+, then 25...Rh7. Black is okay.
Oct-18-19  Walter Glattke: Possible parry with 24.-Rg8 25.NxQ or 24.-Qe4 25.NxQ. 20.Rxd5 is the key move, allows queen ranging against offside defence and win.
Oct-18-19  latebishop: Is 20...Rxc5 a better defense than 20...Bxc5?
Oct-18-19  saturn2: <HeMateme I wonder why black played 14...gxf> Maybe he did not like

14...Bxf6 15. Ne4 

15...bxc4 16. Nxf6+ is again a double pawn and
15...Nxe4 16. Qxe4 Rb8 17. Bd3 gives white some attack

Oct-18-19  saturn2: ok but in my first line black wins a piece
Oct-18-19  mel gibson: Too difficult for me.

Stockfish 10 agrees with the actual game & says:

19. Rxd5

Rxd5 (♖d1xd5 e6xd5 ♕c2-f5 ♔g8-g7 ♘f3-d4 ♖f8-g8 c5-c6 ♖c8xc6 ♘d4xc6 ♕e8xc6 ♕f5-h5 ♔g7-f8 ♕h5xh6+ ♔f8-e8 ♕h6-h7 ♖g8-g5 ♖c1-b1 c4-c3 ♖b1-b8+ ♔e8-d7 ♕h7-h8 d5-d4 e3xd4 c3-c2 ♕h8-e8+ ♔d7-d6 ♕e8xc6+ ♔d6xc6 ♖b8-c8+ ♔c6-d7 ♖c8xc2 ♖g5-b5 f2-f3 f6-f5 ♘g3-e2 ♗e7-f6 h2-h3 ♖b5-d5 ♖c2-c4 f5-f4 ♔g1-f2 a6-a5 a2-a4 ♖d5-d6 d4-d5 ♗f6-h4+ ♔f2-g1 ♗h4-g3 ♘e2xf4 ♗g3xf4 ♖c4xf4 ♖d6xd5 ♖f4xf7+ ♔d7-e6) +2.65/40 230)

score for White +2.65 depth 40.

However in the actual game
Black makes a big mistake with
20... Bxc5.

20... Bxc5 21. Qg4+

(21. Qg4+ (♕f5-g4+ ♔g8-h7 ♘g3-h5 ♖f8-g8 ♘h5xf6+ ♔h7-h8 ♕g4-f5 ♖g8-g7 ♘f6xe8 ♖c8xe8 ♕f5xd5 ♗c5-f8 ♖c1xc4 ♔h8-g8 ♖c4-c6 a6-a5 ♘f3-e5 ♗f8-e7 ♖c6xh6 ♖e8-d8 ♘e5-g6 ♖g7xg6 ♖h6xg6+ ♔g8-f8 ♕d5-f3 ♖d8-d1+ ♕f3xd1 f7xg6 ♕d1-g4 ♔f8-f7 ♕g4-c4+ ♔f7-g7 ♕c4-d4+ ♔g7-f7 ♕d4-d5+ ♔f7-f6 ♕d5xa5 ♔f6-f7 ♕a5-c3 ♗e7-f8 ♕c3-c7+ ♔f7-e6 ♕c7-a5 ♔e6-f6 ♕a5-d8+ ♔f6-f7 ♕d8-d5+ ♔f7-f6 ♕d5-f3+ ♔f6-g7 ♕f3-e4 ♔g7-f6) +13.37/36 85)

score for White +13.37 depth 36

Premium Chessgames Member
  beatgiant: <al wazir>
<after 21. Qg4+, 21...Kh8 holds out longer.>

How to hold out after 21...Kh8 <22. Qf4>? On 21...Kh8 22. Qf4 Bxe3, White can even simply ignore it with <23. Qf6+> and the outcome looks similar to the actual game.

Premium Chessgames Member
  agb2002: White has two knights for the bishop pair.

Black threatens Rxc5 and Bxf3-f5-Bf6.

White can create a hole on f5 with 19.Rxd5 exd5 20.Qf5 but after 20... Rxc5 neither 21.Nd4 Qc8 nor 21.Qg4+ Kh7 22.Ngf5 Rg8 23.Qh5 Rg6 look winning.

I don't know. However, I'd play 19.Rxd5 because it seems to give some practical chances.

Oct-18-19  TheaN: Some key moves here: after the relatively straightforward <19.Rxd5! exd5 20.Qf5 ±> White prepares a king side invasion with a relatively harmless exchange sac (harmless for himself, that is) as the Rf8 is not helping Black at all.

The threat's Qg4-Nh5 with mate or Nxf6+. There's a couple of ways to parry this, of which 20....Bxc5? is not one. 20....Rxc5 21.Qh3! +- to threaten h6. This happens on defenses where Black tries to get more pieces in as well.

However, after 20....Kg7 the attack is not yet decisive. A typical tough Friday, where I think seeing key concepts with Qf5-Qg4-g7# are key, as well as considering some defenses. Alas, White does not really have a lot of alternatives on move 19 either.

Premium Chessgames Member
  beatgiant: <TheaN>
After 20...Kg7 <21. Nd4!> bringing the other knight in, looks very strong. Then if 21...Rg8, 22. c6. It looks like Black's pawns on d5 and c4 will soon fall, because Black's pieces are too tied down to defend them. If so, White would have 2 pawns for the exchange, a strong attack, and a strong advanced passed pawn.

click for larger view

Premium Chessgames Member
  patzer2: Black's decisive error appears to be 18...Rc8?, allowing the Friday Oct 18, 2019 puzzle solution 19. Rxd5! +- (+2.07 @ 32 ply, Stockfish 10).

Instead, 18...Bxf3 19. gxf3 Qc6 ⩲ to ± (+0.67 @ 36 ply, Stockfish 10) gives Black practical drawing chances.

Earlier, instead of 14...gxf6? which allows 15. Be2 ⩲ (+0.49 @ 32 ply, Stockfish 10), Black could have secured a fully level position with 14...Bxf6 = (-0.08 @ 30 ply, Stockfish 10).

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