Shamsiddin Vokhidov vs Jorge Cori (2015)

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Shamsiddin Vokhidov vs Jorge Cori
World Junior Championship (2015), Khanty-Mansiysk RUS, rd 11, Sep-13
Sicilian Defense: Paulsen. Szen Variation (B44) · 0-1

ANALYSIS [x]

FEN COPIED

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Oct-02-24		alexrawlings: What a great game! I didn’t get this… seems quite unusual for Black not to castle in this type of Sicilian. Is that theory or sound?

Oct-02-24		TheaN: Tough Wednesday! It seems like we have control over the center and king side, but how to finish the game? This puzzle is, sadly I say in this case, a bit flawed as there is nothing wrong with 28....e1Q+?! 29.Rxe1 Nxe1+ 30.Kxe1 Rxg2 -+ and Black's simply winning easily. The problem for White is the 31....Bh4+ threat (with 32....Rf1#), else 31.Bxb6 would have been unclear. However: "something something good move better one". <28....Ne1+!>: click for larger view The initial problems Black was facing were that Pe2 was in and there wasn't enough control of f1. Ie 28....Ne5+/Nd4+ 29.Kg1 and best is repeating 29....Nf3+, or 28....Nxh2?! 29.Kxe2 Rxg2 -+ but still work to be done. 28....Ne1+! prevents both defensive ideas in one. Obvious the knight blocks Rc1: 29.Kg1?? Rf1#. After 29.Kxe2? Rxg2+ is disastrous as the knight covers d3: 30.Kxe1 (Kd1 Rf1 -+) Bh4+ 31.Bf2 (Kd1 Rf1#) Rfxf2 -#5. Interposing on the f-file has no real point as the threats remain, so that leaves <29.Kxe1>. Now, <29....Rxg2!>. Defend e2 first, threatening Rf1#: there's not much White can do as Bh4+ also looms, which spells White's doom after <30.Kd2 e1Q+! 31.Kxe1 (else -# soon) Bh4+ 32.Bf2 (Kd1 Rf1#) Rfxf2 -#6> and White can only fire some spite checks before being mated. <alexrawlings: What a great game! I didn’t get this… seems quite unusual for Black not to castle in this type of Sicilian. Is that theory or sound?> There are some systems where this concept is playable. Haven't seen it in this particular setup, SF also doesn't really agree with g5. I know at least the Dragondorf is based on it: Black starts a Dragon Najdorf hybrid, and when White fires the classical Yugoslav setup, which would be good as Black lost a tempo with a6... Black just doesn't castle. Pretty fun if White's unfamiliar with it.

Oct-02-24		perfidious: While I have never seen ....g7-g5 without castling, the motif itself is well known after ....0-0 and ....Kh8 in Hedgehog middlegames.

Oct-02-24		chrisowen: I but quark its op diffy its v u el Ne1 get abb lab v its aha ra abluff frazzle Ne1 bot

Oct-02-24		chrisowen: That's fine Qe1

Oct-02-24		mel gibson: There are many good moves. Stockfish 17 says: 28. .. Ne1+ (28. .. Ne1+ (1. ... Ne1+ 2.Kxe2 Rxg2+ 3.Kd1 Nd3 4.Bd2 Rf1+ 5.Kc2 Nxc1 6.c5 b5 7.Nxb5 axb5 8.a3 Ne2 9.Kd3 Rd1 10.Kc2 Ra1 11.a4 Nf4 12.Rd4 Ne6 13.c6+ Kxc6 14.axb5+ Kd7 ) +9.48/43 321) score for Black +9.48 depth 43.

Oct-02-24		perfidious: A Hedgehog reversed, from a completely unexpected quarter: Fischer vs Andersson, 1970

Oct-02-24		Twilight of the Idol: I chose to simply win the exchange...I didn't think there would be back rank ideas of that sort. One of these times I'll go 7/7 (maybe). I might have first played 28. ... Nd4+ 29. Kg1 Nf3+ for kicks.

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