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Ivan Cheparinov vs Sasho Nikolov
Bulgarian Championship (2005), Pleven BUL, rd 11, Jun-01
Sicilian Defense: Paulsen. Bastrikov Variation English Attack (B48)  ·  1-0



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sac: 37.Ne6+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jun-04-05  MarvinTsai: I wonder if Nikolov was aware of the final blow. If he was, he wouldn't have taken the pawn. His queen should have retreat instead.
Premium Chessgames Member
  agb2002: White has both knights for the bishop pair and a pawn.

After 37.Ne6+ fxe6 (37... Ke8 38.Nxf8 Kxf8 39.Rh8#) 38.Qg7 Re8 (38... Ke8 39.Qe7#; 38... Rxf6 39.Rh8+ Rf8 40.Rxf8#) 39.f7 wins more than an exchange:

A) 39... Bc6 40.fxe8=Q+ Bxe8 (40... Ke8 41.Rh8#) 41.Rh7 Qc6 (protects c7 and e8) 42.Nxe5 wins another exchange at least.

B) 39... Qc6 40.fxe8=Q+ Qxe8 41.Rh8 wins decisive material.

C) 39... Qxh1 40.fxe8=Q+ Kxe8 41.Rxh1 Bxh1 42.Qh8+ (or 42.Qxc7) wins decisive material.

Jun-02-20  groog: agb2002 said it all
Jun-02-20  saturn2: 37. Ne6+ fxe6 38. Qg7 Re8 39. f7 wins.

25....Rf8 such moves I only make in online blitz by error failing to castle correctly

Jun-02-20  nalinw: According to the engine it is only

36. ... Kd8 that is the losing move!

36 ... Kd7 - with even a slight edge for Black!

Premium Chessgames Member
  Once: <saturn2: 25....Rf8 such moves I only make in online blitz by error failing to castle correctly>

I think there is a time and a place for moves like 25...Rf8. When players are attacking on opposite wings, such as in the sicilian, the safest place for your king can sometimes be in the middle of the board. If it works, it can give you time to get your attack in first.

Jun-02-20  Brenin: I agree with <nalinw>, 36 ... Kd8 was the mistake, allowing 37 Ne6 with check. Instead, 36 ... Kd7 would have been safe, leaving Black with a small advantage. Earlier, 30 ... Rb5 was hard to understand; 30 ... a3 was more to the point.
Jun-02-20  malt: Have 37.Ne6+ fe6 38.Qg7 Qc6

(38...Rd8 39.f7 Bc6 40.Rh7 Q:h7 41.f:e8Q+ and 42.Q:h7 )

39.Q:f8+ Qe8 40.Qg7 Δ 41.Rh8

Jun-02-20  Nullifidian: 37. ♘e6+ ♙fxe6 (if black tries running away with ♔d7, then 38. ♘dc5+ forks the king, queen, and bishop. The knight can't be captured with the pawn because of the pin, and capturing with the rook just loses the exchange into the bargain because the threat is renewed with 39. Nxc5+) 38. ♕g7 ♖e8 39. ♖h8 ♖xh8 40. ♕xh8+ ♔d7 ♙f7.
Jun-02-20  mel gibson: The first move was easy - I wasn't sure of what White should do next.

Stockfish 11 says:

37. Ne6+

(37. Ne6+ (♘g7-e6+
f7xe6 ♕g3-g7 ♖f8-e8 ♖h1-h8 ♖e8xh8 ♕g7xh8+ ♔d8-d7 f6-f7 ♔d7-c6 f7-f8♕ ♔c6-b6 ♕f8-f2+ ♔b6-a6 ♕h8-h4 ♖b5-b6 ♘d3-c5+ d6xc5 ♕h4xe4 ♗b7xe4 ♕f2-e2+ ♔a6-b7 ♕e2xe4+ ♔b7-b8 ♖d1-d7 ♖b6-d6 ♖d7xd6 ♗c7xd6 ♕e4-c6 ♗d6-c7 ♕c6xc5 ♔b8-c8 ♕c5xb4 ♔c8-d7 ♕b4xa3 ♗c7-d8 ♕a3-a7+ ♔d7-d6 ♕a7-b8+ ♔d6-d7 ♕b8xe5 ♔d7-e7 ♕e5-d4 ♗d8-c7 a2-a4 ♗c7-d6 ♕d4-e4 ♔e7-f6 b2-b4 ♔f6-f7 a4-a5 ♔f7-f6 b4-b5) +11.74/38 262)

score for White +11.74 depth 38

Jun-02-20  zb2cr: Nice analysis, <agb2002>.
Jun-02-20  kentaurus: This one was easy even for my standards (eternal beginner). But looking at the previous move I didn't find the continuation after 36. ...Kd7.

I'm glad that the engine analysis didn't proved me being stupid.

Premium Chessgames Member
  chrisowen: Chain e6 jigsaw confide g7 no?
Premium Chessgames Member

click for larger view

Black's real attack was in the center. Thinking it was against the king, he played a losing move, 33 … a3? This allowed White strong enough tactics to abandon his e-pawn with Nf5.

After 34 Nf5 Bc7, White blundered back with 35 Qg3, missing 35 Qh5-h6. The defense, … Qxe4xh1 would not have been as strong with White's queen on the h-file, protecting his rook.

Back to the diagrammed position: 33...Kd7, planning to get his king to at least the c-file, might have been the last chance but for White's 35th move. With his king safe, Black could have countered with … d5 at the right time.

Premium Chessgames Member
  chrisowen: Headlights yes no?
Jun-02-20  TheaN: Interesting that this puzzle could not have started a ply sooner. Black simply erred with 36....Kd8?

It is the more natural move considering we don't want to voluntarily walk onto a diagonal the opponent has control over, however after 36....Kd7! 37.Qh3+, why would Black mind? The White cavalry is now getting further and further away, especially Ng7 and the Black 'cavalry' (in this case horseless) is hiding where the king is going! After 37....Kc6:

click for larger view

⩱ Black is surprisingly doing more than fine because the knights have no outlets whatsoever and now White has to worry about a counterattack.

Jun-02-20  TheaN: Reposting my solution as I noticed it didn't make any sense :>

Not a too terrible Tuesday, but it is slightly hidden. I looked at 37.Rh4 for a while, moving the somewhat exposed Rh1 and questioning the queen that doesn't have a lot of squares, but 37....Qf3 ∓ does more than holding.

So <37.Ne6+>, which is from a Tuesday point of view more logical anyway. <37....fxe6> king moves are futile, after Kd7/Kc8 38.Nxf8 +- is easy, after 37....Ke8 White should keep paying attention and play 38.Qg7 +-, but 38.Nxc7+ with Nxb5 +- works too. <38.Qg7> Black cannot prevent the loss of the rook except for Re8 and in that case the f-pawn will just go up the board unopposed <38....Re8 39.f7> Black cannot prevent promotion and can only accept <39....Qxh1 (else mate fast) 40.fxe8Q+ Kxe8 41.Rxh1 Bxh1 42.Qxc7 +->. Perhaps 40.Qf6+ is playable too but the played simplification leaves Black without anything and is probably better from a human's standpoint.

Premium Chessgames Member
  chrisowen: And it was kd8 better kd7 no?
Premium Chessgames Member
  chrisowen: Long que fanfare.

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