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Leinier Dominguez Perez vs Dmitry Andreikin
Capablanca Memorial (Elite) (2011), Havana CUB, rd 4, May-14
Sicilian Defense: Kan. Maroczy Bind Reti Variation (B41)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Given 16 times; par: 57 [what's this?]

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Kibitzer's Corner
May-15-11  falso contacto: Leinier had a solid position at the beginning of the middlegame, then something went wrong.
May-15-11  Gilmoy: Black pushes d5 to equalize in Sicilian. Maroczy Bind plays c4 to prevent that. Andreikin continues <21..Rc5!>, offering an exchange for <many free tempi>, which he uses for <22..d5!> to blow up the center, and the vastly irritating <24..h3>.

<26.Bxc5> grubs the material, but it looks like a strategic blunder: Black's recapture <26..Bxc5> wins a tempo <and> controls g1, with myriad smothering, parallel-diagonals, and (after <29..Nd1>) discovery/windmill threats. White's heav(ier) pieces are no match for Black's swarm of gnats.

Conjecture: Black's Bb7 was the strongest minor piece on the board <because> it moved the least number of times: <12.Bb7> once.

May-15-11  DanielBryant: I'm sure this is a really basic openings question, but I'm curious as I don't play the Sicilian: Why didn't he grab the pawn with 7...Bxc3?
May-15-11  bronkenstein: For example, 7. ...Bxc3 8. Bxc3 Nxe4 9. Qg4 Nxc3 10. Qxg7 etc .
May-15-11  DanielBryant: <bronkenstein> Thanks.
May-15-11  hedgeh0g: Moving the f-rook to c1 looked slightly suspect to me. Surely it makes more sense to move the a-rook to the c-file and the f-rook to the d-file to pressure d6 and keep d5 under control. The way the game went, White relinquished control over d5 and allowed the break.
May-16-11
Premium Chessgames Member
  HeMateMe: Wonderful, deep combination by black.
May-17-11
Premium Chessgames Member
  beenthere240: It took white 5 moves to accept the exchange sacrifice on c5.
May-19-11
Premium Chessgames Member
  tpstar: Great game by Black. The h Pawn advance really disrupted White's Kingside, then the Two Bishops were all powerful.

An instructive exchange sacrifice.

Jan-19-12  parisattack: Nicely played Kan. Shows how Black can get play all over the board in this variation.
Jul-09-12  fisayo123: Sweetness!
Dec-04-21  Brenin: I can see themes, but not a convincing win for Black, starting with 27 ... Nxc3, e.g. 28 Nxc3 Bd4 looks good for Black, or 27 ... Rxd8+ Qxd8 28 Qxe5 (28 Nxc3 Qd4) Nd1 with threats of Ne3 or a windmill Nf2+.
Dec-04-21  mel gibson: Another one which Stockfish 14 is calling a draw:

27... Nxc3

(27. .. Nxc3 (♘d5xc3 ♘b5xc3 ♗c5-d4 f3-f4 h3xg2+ ♗f1xg2 ♗b7xg2+ ♕g3xg2 ♗d4xc3 ♖d1xd8+ ♕b8xd8 ♖a1-c1 ♗c3-b2 ♕g2xb2 ♘e5-d3 ♕b2-d2 ♕d8-a8+ ♔h1-g1 ♘d3xc1 ♕d2xc1 ♕a8-e8 ♔g1-f2 g7-g6 ♕c1-c7 ♕e8-e6 ♕c7-d8+ ♔g8-h7 ♕d8-d3 ♕e6-c6 ♕d3-c4 ♕c6-f6 ♔f2-g3 ♕f6-f5 h2-h4 ♕f5-d7 ♕c4-e2 ♕d7-d4 h4-h5 ♕d4-d5 h5xg6+ ♔h7xg6 ♕e2-e3 ♔g6-f5 ♕e3xb6 ♕d5-d3+ ♔g3-f2 ♕d3-d2+ ♔f2-f3 ♕d2xf4+ ♔f3-e2 ♕f4-e5+ ♔e2-d3 ♕e5-d5+ ♔d3-c3 ♔f5-e4 b3-b4 ♕d5-d3+ ♔c3-b2 ♕d3-d2+ ♔b2-b3 ♕d2-d1+ ♔b3-b2 ♕d1-e2+) 0.00/51 203)

score = draw 0.00 depth 51.

Dec-04-21
Premium Chessgames Member
  agb2002: Black has a bishop for a rook.

White threatens Qxh3. The black queen is overburdened with the defense of rook and the knight on e5.

A quick scan yields lines like 27... Nxc3 28.Rxd8+ Qxd8 29.Nxc3 Qd4.

Or 29.Qxe5 Nd1 30.Be2 Nf2+ 31.Kg1 Nd3+.

Or 30.Qe2 Nf2+ 31.Kg1 hxg2 32.Bxg2 (32.Kxg2 Qg5#) 32... Qh4 33.h3 Ng4+ 34.Kh1 Qg3 35.hxg4 Qh4+ 36.Bh3 Qxh3+ 37.Qh2 Bxf3#.

However, White can play 28.Nxc3.

I don't know. I'd try 27... Nxc3 and reserve hxg2+ for a better moment.

Dec-04-21
Premium Chessgames Member
  GufeldsVengeance: How is this a tactic? White has to blunder for this to be a "win." mel gibson is right.
Dec-04-21  1stboard: Looks like White's move 35 ... any and blacks 35th move is Qd3
Dec-04-21
Premium Chessgames Member
  chrisowen: Nickle n dimes Nxc3 gentle it accomodate evict mainy a hoody riddle nickle n dimes paddle it welly leggo bosom evict mariner it nice flick jukebox hq it air v plank woody enough v i blimy vague it mint paddle it dovey cocky crick hoggy segregate gobstopper advance dankly awooga jo go hi v he jobsworth axiom be fooky bangs newton vis biddy gobble gunslain i mcfide bogoff eh i evict jail it skim knick clicked it free gruff i handy defcom blubb reccy green baize it vint ie v pebbles i v dengue mods it height o v i bear it dine it feel great creed downy v i flight ok gobble v go books esconce fall it on your face ovids c monet denty v it will i march halfdome it u z v om a stinker it why it a thought like no and bb hiccups it one six copa sh v ie c3 crown!
Dec-04-21  Brenin: Despite the praise for Black's exchange sacrifice and later combination, as <mel gibson>'s Stockfish analysis shows, after 27 ...Nxc3 28 Nxc3 Bd4 29 f4! (the response I underestimated, protecting White's N on c3 and attacking Black's N on e5) hxg2+ 30 Bxg2 Bxg2+ 31 Qxg2 Bxc3 32 Rxd8+ Qxd8 33 Rc1 Bb2 34 Qxb2 Nd3 (forking Q & R) 35 Qd2 (pinning the N) Qa8+ (unpinning the N) 36 Kg1 Nxc1 37 Qxc1 it is a dead draw, with Q+4P on each side. This is another POTD in which the solution succeeds OTB by giving the opponent the opportunity to miss the best defence, rather than by forcing mate or resignation.
Dec-04-21  mel gibson: <Brenin -
This is another POTD in which the solution succeeds OTB by giving the opponent the opportunity to miss the best defence, rather than by forcing mate or resignation.>

Yes - Black to move and make such a complicated
situation that White can easily make a mistake.

Dec-04-21  olinart: I thought that White missed equalizing with
33. Qe8+ Qxe8
34. Rxe8+ Kh7
35. Ne4
However Black has
..Nxe4
36. fxe4 hxg2+
37. Kxg2 Bc6

which picks up the K pawn and a pretty clear win.

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