chessgames.com
Members · Prefs · Laboratory · Collections · Openings · Endgames · Sacrifices · History · Search Kibitzing · Kibitzer's Café · Chessforums · Tournament Index · Players · Kibitzing

Miroslav Filip vs Andrija Fuderer
Zagreb (1955), rd 14, Nov-17
Zukertort Opening: Kingside Fianchetto (A04)  ·  1-0

ANALYSIS [x]

FEN COPIED

Click Here to play Guess-the-Move
Given 4 times; par: 56 [what's this?]

explore this opening
find similar games 1 more Filip/A Fuderer game
sac: 20.Nxg6 PGN: download | view | print Help: general | java-troubleshooting

TIP: If you find a mistake in the database, use the correction form. There is a link at the bottom that reads "Spot an error? Please suggest your correction..." Avoid posting corrections in the kibitzing area.

PGN Viewer:  What is this?
For help with this chess viewer, please see the Olga Chess Viewer Quickstart Guide.
PREMIUM MEMBERS CAN REQUEST COMPUTER ANALYSIS [more info]

Kibitzer's Corner
Mar-14-15  fokers13: saw the first 3 moves thought W's position was promising so i left it at that.

not a hard start for a saturday puzzle at least

Mar-14-15  Dr. J: I saw the first three moves: 20 Nxg6 fxg5 (or A1) 21 Nxe7+ Rxe7 (or B1 or B2) 22 Rxe7 and considered this sufficient: White has won ♖♙♙ for ♗♘ with huge threats - Qf5, d6, or Rxc5, and Black has no development or counterplay.

(A1) 20...fxg6 21 Qxg6 Rf8 (or 21...Nbd7 22Bh6) 22 Rxe7.

(B1) 21...Kf7 22 Qf5+ Bf6 23 Qxh7+ and mates in 3 more

(B2) 21...Kh8 22 Ng6+ hxg6 23 Rxe8+ Kh7 24 d6

... but now I'm not so sure: what does White do against (A2) 20...Kf7?

Mar-14-15
Premium Chessgames Member
  offramp: Very very tough. I thought 20.d6 might have won.
Mar-14-15
Premium Chessgames Member
  An Englishman: Good Evening: I saw the line with the game move, followed by 20...hxg6; 21.Qxg6,Kf8; 22.d6 and White has threats everywhere.
Mar-14-15  Steve.Patzer: I looked at 20. d6 also.
Mar-14-15  scormus: <Dr. J> Yes, "finding" 30 Nxg6 comes easy, but checking all the B replies is a fair bit more work.

I wondered about ... Kf7 too, but 21 Nxe7 seems adequate. But 21 Bh3! is an absolute killer. If ... hxg6 it's # in 3.

Mar-14-15  M.Hassan: "Very Difficult"
White to play 20.?
Equal. White has the Bishop pair for a Bishop and a Knight.

20.Nxg6
A)
20..........hxg6
21.Qxg6 Nb8d7 to connect Rooks
22.Bh6 and mate next move
A.1)
21.Qxg6 fxg5
22.d6 N8d7
23.Rxe7 Rxe7
24.dxe7 Qc8
24.Bxa8 Nxa8
25.e8=Q+ Qxe8
26.Qxe8+ Nf8
27.Qxa8
White is way ahead in material and wins

B) 20..........fxg5
21.Nxe7+ Kf8
22.Qf5+ Bf6
23.Qxf6#
B.1)
21.Nxe7+ Kf7
22.Qf5+ Bf6
23.Qxh7+ Bg7
24.Bg6+ Kf8
and above line will be continued

B.2)
21.Nxe7+ Kh8
22.d6 Nb8d7
23.Bxa8 Nxa8
24.Ng6+ hxg6
25.Rxe8+ Kh7
26.Rxa8 Qxd6
27.Rxa7
Again White is stronger and wins

Mar-14-15  morfishine: For a variety of reasons, White has mounted a number of threats exceeding that which Black can answer. These can be summarized as better and more efficient development

20.Nxg6 hxg6 21.Qxg6 Qc8 22.Bxf6 (Oops)

Or 20...fxg5 21.Nxe7+ Kf8 22.d6 N8d7 23.Qxh7

*****
Very nice finish by Filip

*****

Mar-14-15  gofer: The only problem with today's POTD is choosing which of black's positional weaknesses to attack first?!

a) d6 attacking the loose Ra8

b) Nd3 attacking Pc5 and then cementing the knight on e6

c) Nxg6 attacking Pe7 and threatening mate if black takes back

Hmmm, I think we combine c) and a) and see what happens!

<20 Nxg6 ...>

20 ... fxg5
21 Nxe7+ Rxe7 (Kf8 Qf4+ mating or Kf7 Qxh7 )
22 Rxe7

20 ... hxg7
21 Qxg6 ...

21 ... N8d7 22 Bh6 mating
21 ... Rf8 22 Rxe7 mating

21 ... Bxg5
22 Qxe8+ Bf8 (Kh7 23 Be4+ Kh6 24 Qg6#)
23 Rxe7 mating

So black cannot take either Ng6 or Bg5!

<21 ... Nbd7>
<22 Nxe7 Kh8>
<23 Bd2 ...>


click for larger view

Black has won two pawns and still has multiple threats starting with d6 or Re4.

~~~

Hmmm, I really didn't think black could accept either the bishop or knight!

Mar-14-15  Dr. J: <An Englishman: 20...hxg6; 21.Qxg6,Kf8; 22.d6> I see I overlooked that defense. But I think this refutes it outright: 22 Bh6 Bxh6 23 Qxh6+ Kg8 29 Qg6+ Kf8 30 Re4, etc.; or similarly, if here 23...Kf7 24 Qh7+ Kf8 Re4. In both cases ♕+♖ mate.

<scormus: 20...Kf7 21 Nxe7 seems adequate. But 21 Bh3! is an absolute killer. If ... hxg6 it's # in 3.>

Not sure I follow. What happens after 21 Nxe7 Rxe7, or your preferred 21 Bh3 e5?

<scormus: <Dr. J> Yes, "finding" 30 Nxg6 comes easy, but checking all the B replies is a fair bit more work.>

Yes, it's becoming clear that today's puzzle is quite easy ... until you begin to understand it.

Mar-14-15  diagonalley: yep... 20.NxP is fairly easy to pick out... OTB i'm sure i would have played it in faith, without trying to look too far ahead (certainly the game line would be difficult to foresee)
Mar-14-15
Premium Chessgames Member
  Penguincw: 20.Nxg6 is just being screamed out to being played. The only followup I calculated was 20...hxg6 21.Qxg6.
Mar-14-15  dfcx: 20.? white is far ahead in development, white's knight and bishop is forked by f6 pawn. white has several choices: Bxf6, d6 and Nxg6.

Bxf6 loses to exf6.
with 20.d6 fxe5 21.Bxa8 exd6 white trades an active knight and passed pawn with a inactive rook. this leaves us with

20.Nxg6
A.20...fxg5 21.Nxe7+ Rxe7 (Kh8 Ng6+) 22.Rxe7 N8d7 23.Qf5 Rf8 24.Qe6+ Kh8 25.Rxd7 B.20...hxg6 21.Qxg6 Kf8 (Rf8 Rxe7) 22.d6!

Mar-14-15
Premium Chessgames Member
  kevin86: The sac was obvious, but the increasing mobility of the pieces is hard...
Mar-14-15  vajeer: What is black plays 20...Nc8
Mar-14-15  scormus: <Dr. J: ...... What happens after 21 Nxe7 Rxe7, or your preferred 21 Bh3 e5?>

how about 22 dxe6+ Kg8 23 e7? I think it's 1-0 (eg ... hxg6 24 Qxg6, threatening Qxe8+ and Be6+)

Mar-14-15  scormus: .... but I agree, you start thinking "what if this? what if that?" and there's more to it than is obvious at first :)
Mar-14-15
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop and a knight.

Black threatens 20... fxe5 and 20... fxg5.

The first idea that comes to mind is 20.Nxg6:

A) 20... hxg6 21.Qxg6

A.1) 21... Rf8 22.Rxe7 wins.

A.2) 21... N8d7 22.Bh6 wins.

A.3) 21... fxg5 22.Qxe8+ Bf8 (22... Kh7 23.Be4+ Kh6 24.Qg6#) 23.Qg6+ Kh8 (23... Bg7 24.Rxe7 wins) 24.Be4 and 25.Qh7#.

A.4) 21... Kf8 22.Bh6 Bxh6 23.Qxh6+

A.4.a) 23... Kf7 24.Qh7+ Kf8 25.Bf3 e5 (25... Rc8 26.Bh5 and 27.Qf7#) 26.Bh5 Qb7 (26... Re7 27.Qh8#) 27.Qxb7, etc.

A.4.b) 23... Kg8 24.Qg6+ Kf8 25.Bf3 is similar to A.4.a.

B) 20... fxg5 21.Nxe7+

B.1) 21... Kh8 22.Ng6+ hxg6 23.Rxe8+ Kh7 24.Re6 + - [R+2P vs 2N], with a winning attack.

B.2) 21... Kf8 22.Qf5+ Bf6 23.Qxf6#.

B.3) 21... Kf7 22.Qf5+ Bf6 23.Qxh7+ Bg7 (23... Kf8 24.Qg8#) 24.Qf5+ Bf6 25.Qg6+ Kf8 26.Qg8#.

B.4) 21... Rxe7 22.Rxe7 + - [R+2P vs 2N], with several threats (Qf5, d6, Rxc5, etc.).

C) 20... Qb7 21.d6

C.1) 21... Nc6 22.Ne7+ wins decisive material.

C.2) 21... Qc8 22.Rxb6 axb6 23.Bxa8 wins decisive material.

D) 20... Kf7 21.Nxe7 looks similar to the B lines.

E) 20... Nc8 21.d6

E.1) 21... hxg6 22.Qxg6 Nxd6 23.Bh6 wins (23... Nf5 24.Qxe8+).

E.2) 21... fxg5 22.Bd5+ e6 23.Rxe6 hxg6 24.Rxe8+ Kh7 25.Bxa8, etc.

F) 20... Bf8 21.Nxf8 with an extra pawn and an overwhelming position.

Mar-15-15  CHESSTTCAMPS: White has 2 bishops for knight plus bishop, but two minor pieces are currently forked. Given black's incomplete development and lightly defended king-side castled position, it makes sense to use desperado tactics to hit the weakened sector.

20.Nxg6! is more technical routine than tactics. Black still has the choice of two pieces to take, but neither is very appetizing:

A) 20... hxg6? 21.Qxg6 fxg5 22.Qxe8+ Bf8 (Kh7 23.Be4+ Kh7 24.Qg6#) 23.Qg6+ Kh8 (23... Bg7 24.Rxe7) Be4 forces mate.

A.1) 21... Rf8 22.Rxe7 Rf7 23.Qxf7+ Kh8|h7 24.Qxg7#

A.2) 21... e5 22.Qxe8+ Bf8 23.Bh6 Qc8 24.Qg6+ Kh8 25.Be4 wins

A.3) 21... Nbd7 (and others) 22.Bh6 wins

B) 20... fxg5 21.Nxe7+ Rxe7 22.Rxe7 N8d7 23.Qf5 Rf8 (otherwise 24.Qf7+) 24.Qe6+! Kh8 25.Rxd7! with material advantage and dangerous passed d-pawn.

B.1) 20... Kf8? 21.Qf5+ Bf6 22.Qxf6#

B.2) 20... Kf7? 21.Qf5+ Bf6 22.Qxh7+ Bg7 23.Qf5+ Bf6 24.Qg6+ Kf8 25.Qg8#

B.3) 20... Kh8? 21.Ng6+ hxg6 22.Rxe8+ Kh7 23.d6 nails the undeveloped rook.

There is more detail to do in B, but I'll stop here. Time for review...

Mar-15-15  CHESSTTCAMPS: Didn't quite quite spell out the solution far enough. It was a very pretty finish (though white could win in many ways at the end e.g. 28.Rxa7).
NOTE: You need to pick a username and password to post a reply. Getting your account takes less than a minute, is totally anonymous, and 100% free—plus, it entitles you to features otherwise unavailable. Pick your username now and join the chessgames community!
If you already have an account, you should login now.
Please observe our posting guidelines:
  1. No obscene, racist, sexist, profane, raunchy, or disgusting language.
  2. No spamming, advertising, duplicate or nonsense posts.
  3. No malicious personal attacks, including cyber stalking, systematic antagonism, or gratuitous name-calling of any member Iincludinfgall Admin and Owners or any of their family, friends, associates, or business interests. If you think someone is an idiot, then provide evidence that their reasoning is invalid and/or idiotic, instead of just calling them an idiot. It's a subtle but important distinction, even in political discussions.
  4. Nothing in violation of United States law.
  5. No malicious posting of or linking to personal, private, and/or negative information (aka "doxing" or "doxxing") about any member, (including all Admin and Owners) or any of their family, friends, associates, or business interests. This includes all media: text, images, video, audio, or otherwise. Such actions will result in severe sanctions for any violators.
  6. NO TROLLING. Admin and Owners know it when they see it, and sanctions for any trolls will be significant.
  7. Any off-topic posts which distract from the primary topic of discussion are subject to removal.
  8. The use of "sock puppet" accounts to circumvent disciplinary action taken by Moderators is expressly prohibited.
  9. The use of "sock puppet" accounts in an attempt to undermine any side of a debate—or to create a false impression of consensus or support—is prohibited.
  10. All decisions with respect to deleting posts, and any subsequent discipline, are final, and occur at the sole discretion of the Moderators, Admin, and Owners.
  11. Please try to maintain a semblance of civility at all times.
Blow the Whistle See something that violates our rules? Blow the whistle and inform a Moderator.

NOTE: Keep all discussion on the topic of this page. This forum is for this specific game and nothing else. If you want to discuss chess in general, or this site, visit the Kibitzer's Café.

Messages posted by Chessgames members do not necessarily represent the views of Chessgames.com, its employees, or sponsors. All Moderator actions taken are at the sole discretion of the Admin and Owners—who will strive to act fairly and consistently at all times.

This game is type: CLASSICAL. Please report incorrect or missing information by submitting a correction slip to help us improve the quality of our content.

Featured in the Following Game Collections[what is this?]
Zukertort Opening: Kside Fianchettos Bg2 & Bg7 (A04) 1-0 20.?
from A04s of Fredthebear by fredthebear
Enigma Variations
by otto80
20.? (Saturday, March 14)
from Puzzle of the Day 2015 by Phony Benoni
White to Play Move 23
from How to Finish by Mayoigo2
20.? (March 14, 2015)
from Saturday Puzzles, 2011-2017 by Phony Benoni
Ivan G. Bessa's favorite games
by Ivan G. Bessa


home | about | login | logout | F.A.Q. | your profile | preferences | Premium Membership | Kibitzer's Café | Biographer's Bistro | new kibitzing | chessforums | Tournament Index | Player Directory | Notable Games | World Chess Championships | Opening Explorer | Guess the Move | Game Collections | ChessBookie Game | Chessgames Challenge | Store | privacy notice | contact us


Copyright 2001-2019, Chessgames Services LLC