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

Donato Rivera vs Jaroslav Hybl
5.corr ol (1965)
Sicilian Defense: Richter-Rauzer. Classical Variation (B65)  ·  0-1
ANALYSIS [x]

FEN COPIED

explore this opening
find similar games 59 more games of Hybl
sac: 32...Rxc4 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
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-21-16  not not: to give up rook for a bishop and a pawn - and attack with other rook and queen - is an easy plan to make

but I see no easy follow up

Apr-21-16  not not: 34 Rb5?? is it sound??

why to give up rook on h1, not better to play Rh1d1?? to connect rooks??

Apr-21-16  diagonalley: <diagonalley>: nul points :-(
Apr-21-16
Premium Chessgames Member
  Dionysius1: In the final position white is threatening mate with g6 if Black ever stops checking him
Apr-21-16
Premium Chessgames Member
  gofer: I found this really hard. Much more like a <Saturday> than a <Thursday>!

<32 ... Rxc4>

Only two choices for white; bxc4 and Qxc4

33 Qxc4 Qg2!
34 Qf1 Rxb3+ (34 Rb1 Bxh4! any other rook move Rxb3+ ) 35 Rd3 Qg3+
36 Kd2 Rxd3+
37 Qxd3 Qg2+

<33 bxc4 Rb3+>
<34 Rd3 Qd4+!>
<35 Kd2 Rb2+>

36 Kc1/Kd1 Rb1+

<36 Kc1 Qb6!>


click for larger view

Black threatens Rb1+ winning the queen for a rook! This is way beyond a normal Thursday but REALLY instructive!

37 Rd1 Rf2

<37 Qf3 Qb4!>
<38 Rc3 Ra2!>
<39 Kd1 Qb2!>
<40 Qe3 Ra1+>
<41 Rc1 Rxc1+>
<42 Qxc1 Qg2!>
<43 Re1 Qxg4+>


click for larger view

Finally black exploits the same weakness as in the other line and enters into a Q+R v Q+B+2P endgame...

Very difficult indeed!

~~~

Okay the line played was slightly different, but White cannot allow <33 ... Qg2>...

Apr-21-16  morfishine: Material wise, I couldn't really tell much difference between 32...Rxc4 & 32...Rxb3

...but one had to appreciate the Black Queen penetrating to <g2>

*****

Apr-21-16  psmith: <al wazir> does this work? 34. Rhd1 Rxb3+ 35. R1d3 Bxh4! (Threat Bg5#) 36. Rxb3 Bg5+ 37. Kd3 Qd2#?
Apr-21-16  psmith: But in that line 35. R5d3 is another try. I don't have a reply to that yet.
Apr-21-16  leRevenant: Has the weekend come early this week?
Apr-21-16  tatarch: <agb2002: According to Stockfish, 32... Bd8 fails due to 33.Kf3.>

Thanks - I spent some time looking at that one too.

Apr-21-16  YetAnotherAmateur: <alfiere nero> That is a good question.

On move 34, I see why the Rh1 can't move: If it does, then black responds with 34. ... Bxh4 followed by Bg5#

Also, the white queen must maintain contact with b3, or 34. ... Rxb3#. So either the d4 rook or the king is moving.

From that, I think white would have done better with 34. Rdd1 Qxg4 35. h5, which concedes a pawn but saves the pieces, and leaves white with a chance to push the b-pawn.

Apr-21-16
Premium Chessgames Member
  kevin86: i missed this one after the second move :( This one is more complicated than I thought.
Apr-21-16  wooden nickel: After missing 33... Qg2, I tried 32... Ld8?! ... but 33.Kf3 seems to be ok for White.
Apr-21-16  devere: My intuition didn't tell me that after 32...Rxc4 33.Qxc4 Qg2 34.Rb1 Bxh4 White has no good defense.


click for larger view

It's a very difficult and educational problem.

Apr-21-16  Castleinthesky: Luckily this is guess the right move, which I did (see the whole combination?-fogettaboudit!)
Apr-21-16
Premium Chessgames Member
  Jimfromprovidence: <devere> <My intuition didn't tell me that after 32...Rxc4 33.Qxc4 Qg2 34.Rb1 Bxh4 White has no good defense.>


click for larger view

That is true enough. At least we know that the main threat is mate in two after 35...Bg5+. So if white plays 35 Kd3 to avoid that this is what the position looks like.


click for larger view

Looks real tough to crack.

Rybka freeware suggests 35 Ra8!, but why?


click for larger view

Apr-21-16  devere: <Rybka freeware suggests 35 Ra8!, but why?>

So that on

36.Kc3 Be1+ 37.Rxe1 Qg3+ 38.Kd2 Ra2+ 39.Kd1 Ra1+ 40.Kc2 Qxe1 41.Kb2 Rb1+ 42.Ka3 Rc1


click for larger view

White loses his queen or gets checkmated.

This problem belongs in the "insane" category.

Apr-21-16  King.Arthur.Brazil: JIM, I agree with you, my friend!After 34... Bxh4, 35.Qe2 and what? Qh3+ 35.Qf3 Sg5+ 36.Ke2 Qh2+ 37.Kf1 where's the winning move? White still has the pieces and no mate.
Apr-21-16  devere: <King.Arthur.Brazil: JIM you must take a providence! I don't agree with you again, my friend!(lgs) After 34... Bxh4, 35.Qe2 and what? Qh3+ 35.Qf3 Sg5+ 36.Ke2 Qh2+ 37.Kf1 where's the winning move? White still has the pieces and no mate.>

32...Rxc4 33.Qxc4 Qg2 34.Rb1 Bxh4 35.Qe2 Bg5+ 36.Kd3 Qg3+ 36.Kc4 Rc8+ 37.Kb5 Qc3


click for larger view

White has no defense

Apr-21-16  PJs Studio: This puzzle is tough. Rxb3 or Rxc4 are both in the air plus...Bd8 looks rather nasty too. Nothing concrete in my analysis because I couldn't see 33...Qg2!!

devere, you might just be right about the insanity level.

Apr-21-16  morfishine: <devere> Nice posting along with <jimfromprovidence>

*****

Apr-21-16
Premium Chessgames Member
  wtpy: I found this a really hard problem as well. Saw qg2 but could never quite calculate it to a comfortable win, so gave up, vowing no etoh before solving problem of day. After seeing the difficulties everyone else had solving it,I am giving up that silly thought and having another beer.
Apr-21-16
Premium Chessgames Member
  CHESSTTCAMPS: In this opposite-colored bishop attacking position, white's king on e3 is lacking reliable shelter, especially with an enemy queen behind the lines. Even though the white bishop, queen, and Rd5 are usefully positioned to defend the king, the Rh1 is not. The b3-Bc4 barrier is critical to white's defense. This suggests an exchange sacrifice to break it.

32... Rxc4!

Ineffective is 32... Rxb3+ 33.Bxb3 Rc3+ (Qxb3+ 34.Re3 creates a solid king shelter on the 3rd rank) 34.Rd3 Rxd3+ 35.Qxd3, allowing too much simplification.

A.33.Qxc4 Qg2 34.Rhd1 Rxb3+ 35.R5d3 (Qxb3 Qg3+ wins the Q) Qg3+ 36.Ke2 Qxg4+ 37.Kf1 Rb1+ 38.Kf2 Bxh4+ wins.

B.33.bxc4 Rb3+ 34.Rd3 Qd4+ 35.Kd2 (Ke2 Qxd3+ wins) Rb2+ 36.Kc1 (otherwise 36... Rb1+ wins) Qb6! 37.Qh3 Qf2 38.Rc3 (otherwise 38... Qc2+/# followed by Rb1+/#) Qd2#

B.1 37.Qf3 (otherwise 37... Rb1+ wins the queen) Rf2 38.Q moves Qb2+ followed by 39... Qb1+ finishes.

Time for review....

Apr-22-16
Premium Chessgames Member
  CHESSTTCAMPS: Got a lot of it, but not all.
Apr-22-16
Premium Chessgames Member
  al wazir: <psmith: does this work?> Yes, it does! Beautiful!

But what if white plays 35. R5d3 instead of 35. R1d3 ?

search thread:   
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
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.
Spot an error? Please submit a correction slip and help us eliminate database mistakes!
This game is type: CORRESPONDENCE (Disagree? Please submit a correction slip.)

Featured in the Following Game Collections[what is this?]
Matching Style
from Sicilian by ISeth
32...? (April 21, 2016)
from Thursday Puzzles, 2011-2017 by Phony Benoni
000_-> Middlegames Opp col Bishops 2
by whiteshark
32...? (Thursday, April 21)
from Puzzle of the Day 2016 by Phony Benoni


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