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Maxim Rodshtein vs Zhou Jianchao
Aeroflot Open (2011), Moscow RUS, rd 8, Feb-15
Neo-Grünfeld Defense: Delayed Exchange Variation (D74)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Feb-15-11  iking:

a briliant N sac at move 27. Ne6+


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several moves later, black resigned from a mating position1

Feb-15-11  belgradegambit: Agreed. Sunday puzzle material at move 27.
Feb-15-11  4tmac: Zhou reached the same position at last years aeroflot as white at move 9.♘h4 quick draw. (by much transposition from an English) Quite an interesting combination. I like the final move which seems an only move to win. The attack seems "old school" to me. :) & at move 38 white announced Mate in 13.
Feb-15-11  sevenseaman: Very impressed with astute N sac at 27. Notice how K taking the P at 31... would be a disaster.

Excellent solid play! Renders whole Q wing of Black hors de combat to have a romp on the K side.

Feb-15-11
Premium Chessgames Member
  vonKrolock: Maybe it's not the only winning move, and even not the faster one. For instance try 27.g4 (Δ}- if 27...cxd4, of 28.f6+ followed by ♖h3 - the available defenses seems to lead to heavy material losses, say:

(a) if 27...♖h8, then now 28.♘e6+! wins quickly;

or (b) 27...g5 28.f6+ with checkmate in a few moves in all variations;

Feb-16-11  regi sidal: I left engine on for ~ 3 hours at move 27.

Analysis by Rybka 4 w32:

1. (8.49): 27.Ne6+ fxe6[] 28.f6+ Rxf6 29.Rd7+[] Nxd7 30.Qxd7+ Kh8 31.Rxf6[] Qxc3 32.Rf7[] Kg8 33.Qxe6[] Qg7 34.Rxb7+[] Kh8 35.Rxg7[] Kxg7 36.Qd7+ Kh8 37.Qc6[] Rg8 38.Qxc5[] Nb1 39.Qc1 Kg7 40.Qxb1 Rc8 41.Qb2+[] Kf7 42.Qd2

2. (7.53): 27.g4 Nd5 28.exd5[] Ra6 29.f6+[] Rxf6 30.Rxf6 cxd4 31.Rxd4 Qc5 32.Rdf4[] g5 33.Qf2 Qxf2+[] 34.Rxf2 Nc2 35.d6 Ne1+ 36.Kg3 Nd3 37.Rf1 Nf4 38.Rf5 b6 39.Rb5 Re8 40.Rxb6

3. (3.60): 27.e5 Nd5 28.f6+ Kh7 29.Nf5 gxf5 30.Rxd5 Qg4 31.e6 c4 32.e7 Rg8 33.Rdxf5 cxb3 34.axb3 Qg6 35.Kg1 b6

4. (2.93): 27.Nde2 c4 28.Rd6[] Nc2 29.Rxb6 Qxb6 30.Nd5 Qd6 31.Qxc2 Qe5 32.bxc4 Rac8 33.f6+ Kh7 34.Rb1 Rb8 35.Qd3 Rfe8

5. (2.58): 27.Nf3 Rae8 28.Nh4[] g5 29.f6+[] Kh7 30.Nf5[] c4 31.Rd4 Re6 32.h4[] Rxf6 33.hxg5[] Re6 34.Nxh6 Nb5 35.Nxb5

6. (2.44): 27.f6+ Kh7[] 28.Ne6[] c4 29.Nxf8+[] Qxf8 30.Rd4 Qe8 31.Rd1 Nb5 32.Nxb5 Qxb5 33.bxc4 Qc6 34.Qc2 Rc8 35.c5 Qxc5 36.Qxc5 Rxc5 37.Rb1 Rc6 38.Rb5 g5 39.Rxa5 Rc2+ 40.Kf3

Feb-19-11
Premium Chessgames Member
  vonKrolock: <regi sidal 3. (3.60): 27.e5 Nd5> This 27...♘d5 defense is not plausible, hardly a human being would play it over the board. Then, besides of the plus result of the variation being "only" +7,53, still we can consider <27.g4> as at least as strong as the text move
Nov-14-11  GrahamClayton: Black's knights were "offside" for the whole of the game.
Nov-15-11  LIFE Master AJ: Interesting game!!!
Nov-29-11  LIFE Master AJ: This game - chosen by user "Morfishine" and "Patriot" is now annotated ... and is my "Game Of The Month" for October, 2011.

http://www.ajschess.com/thegotmman/...

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