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Alexey Suetin vs Ruslan Vladimirovich Shcherbakov
Warsaw Legion op (1991), Warsaw POL, rd 11
Sicilian Defense: Chameleon (B20)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Nov-29-08  fizixgeek: Wonderful puzzle. No points for me.
Nov-29-08  Patriot: <Fusilli: <Patriot> <39...Qe1+ would need to be investigated if that moment arrives in the game.> I got one move further. 40.Kc2 Nd4+ and then black can capture the rook and is a piece (and a pawn) up. That made me decide that I would go ahead and play Nf3+ in a live game. I figure that black had Qg3 in response to Kh1 quickly, but I didn't see white could live, as in the game (not for long, obviously.)>

Good job! My main point though was that if you see a line that is forcibly winning, there's no need to analyze other candidates within the tree of analysis in search of something even better. But if you saw Qe1+ Kc2 Nd4+ wins at least a piece then you saw the better line first.

Nov-29-08  Hesam7: Nice combination but can White defend with another move beside 36.h3 ? Or is he already lost ?
Nov-29-08  Woody Wood Pusher: Yes I got the whole puzzle quite quickly today.

But unfortunately the puzzles are repeating so I have seen it before...

Nov-29-08
Premium Chessgames Member
  Richard Taylor: I found the "solution" to this fairly quickly except I thought 40 Rb3 was better (but still lost) I could see Black was going to win the ending. Qg3 would be be one to find OTB but not too hard if one was alert!

Black handled his Svesnikov type opening very well.

"Examine all checks [mate and other material or 'forcing' threats also] and captures."

Nov-29-08  ILikeFruits: i am a member of the PETA...
save the animals...
become a vegan...
join the movement...
fight the power...
Nov-30-08
Premium Chessgames Member
  agb2002: White material advantage (R+B vs. 2N+P) seems to be compensated by the three black pieces aiming at the white king. The most immediate move is 36... Nf3+:

A) 37.Kh1 Qg3

A.1) 38.fxg3 Nxg3 mate.

A.2) 38.gxf3 Nxf2+ 39.Qxf2 Qxf2 40.Rb3 Qe1+ 41.Kg2 Qd2+ 42.Kg3 Qxd5 and Black has a winning endgame.

B) 37.Kf1 Ned2+ 38.Ke2 Qe4+39.Kd1 Qe1+ 40.Kc2 Nd4+

B.1) 41.Qxd4 Qxb1+ 42.Kxd2 exd4 winning.

B.2) 41.Kd3 Qxb1+ 42.Qxb1 Nxb1 and this knight can escape.

B.3) 41.Kc3 Nxb1+, again a pawn and a piece ahead.

Time to post and check.

Nov-30-08  njchess: I got this one pretty quickly. It wasn't too difficult since the first and second moves are practically forced for Black.
Dec-01-08  Woody Wood Pusher: More puzzles needed!
Dec-04-08
Premium Chessgames Member
  patzer2: For the Saturday Nov 29, 2008 puzzle, Black wins with 36...Nf3+! which initiates a decisive attack against White's helpless King.

The clever 42...e4! sets up a winning pinning combination to finish the game.

Oct-29-10  sevenseaman: Black gives up both his rooks but when it came to the Knights, he was able to extract a huge price.
Sep-13-19
Premium Chessgames Member
  wtpy: Got it.
Sep-13-19
Premium Chessgames Member
  FSR: 36...Nf3+ 37.Kh1 (37.Kf1 Ned2+) Qg3!
Sep-13-19  spazzky: apparently 36. h3 was the failure for white, computer says 1) =0.00 (27 ply) 36.Ra1 Nf3+ 37.Kh1 Nfd2 38.f3 Nf2+ 39.Kg1 Nh3+ 40.Kh1 Nf2+ what an odd move Ra1 is!
Sep-13-19
Premium Chessgames Member
  al wazir: 37. Kf1 Nfd2+ 38. Ke2 Qxg2 39. Qb6 Qg1_ 40. Ke2 Nc3+ 41. Kxd2 Qxb1 42. Qxb1 Nxb1 43. Kc2 Na3+ 44. Kb2 1:0.
Sep-13-19
Premium Chessgames Member
  agb2002: Level 3: 21.?
Lasker vs J Mieses, 1889


click for larger view

Sep-13-19
Premium Chessgames Member
  patzer2: White's decisive mistake was 36. h3?, allowing today's Friday puzzle solution 36...Nf3+! -+ (-10.09 @ 40 ply, Stockfish 10).

Instead, 36. Ra1 =, 36. Rc1 = or 36. Kh1 = (0.00 @ 43 ply, Stockfish 10) hold the game level.

Sep-13-19  utssb: Same tactical idea but on the Queenside and with a Bishop involved: Karjakin vs A Esipenko, 2017
Sep-13-19  Stale.Mate: A cross-board pin is a thing of beauty.
Sep-13-19  1stboard: Wow , look at those black Knights , centralization with a vengeance.

Reminds me of Mattison - Nimzovitch miniature circ 1920's

Nice finish

Sep-13-19
Premium Chessgames Member
  malt: 36...Nf3+ 37.Kf1

(37.Kh1 Qg3! 38.gf3 Nf2+ 39.Q:f2 Q:f2 )

37...Ned2+ 38.Ke2 Qe4+ 39.Kd1 Qe1+ 40.Kc2 Nd4+ 41.Q:d4 Q:b1+ 42.K:d2 ed4

Sep-13-19
Premium Chessgames Member
  thegoodanarchist: <Nov-29-08 Woody Wood Pusher: Yes I got the whole puzzle quite quickly today.

But unfortunately the puzzles are repeating so I have seen it before...>

The more things change, the more they stay the same.

Sep-13-19  gofer: Well, the first move is obvious and the continuation is very easy to see if the king climbs into the coffin that is h1.

<36 ... Nf3+>

37 Kh1??? Qg3!!!

38 fxg3 Nxg3#

38 gxf3 Nxf2+
39 Qxf2 Qxf2 +-

38 Any other move Qh2#

So the king must run to the centre of the board!

<37 Kf1 Ned2+>
<38 Ke2 Qe4+>
<39 Kd1 Qe1+>
<40 Kc2 Nd4+>

41 Qxd4? Qxb2+
42 Kxd2 exd4 +-

41 Kc3? Nxb1++ +-

<41 Kd3 Nxb1 +->

~~~

Yep!

Sep-13-19  RandomVisitor: Concerning the ending, after 39...Qxf2


click for larger view

From Basic Chess Endings, 2003 edition:

Queen vs. Rook and One Minor Piece

This is fairly common, unlike the other groups in this section.

Without pawns the ending is a draw, though naturally there will be problem positions where one side or the other may win. With pawns, however, the queen is equivalent to rook plus bishop and pawn. If the pawns are even, the queen wins (though not without difficulty); but <rook plus bishop and two pawns are required to conquer the queen>. When the pawns are equal, the win is easier for the queen if they are not balanced. In that case the superior side can create a passed pawn and capture one of the opponent's pieces or tie him up so badly that some other part of the board will be left defenseless.

Sep-13-19  ASchultz: I figured Nf3+ was a puzzly looking move, but how to follow it up?

Surely Black couldn't go fully Spassky vs. Andruet, could he? G Andruet vs Spassky, 1988

Narrator's voice: yes he could! And he did!

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