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Krishnan Sasikiran vs Zoltan Gyimesi
"Behind Enemy Lines" (game of the day Jun-29-2019)
European Club Cup (2007), Kemer TUR, rd 7, Oct-09
Queen's Gambit Declined: Ragozin Defense. Alekhine Variation (D38)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jun-29-19
Premium Chessgames Member
  al wazir: 47. cxb6 e.p. also wins: 47...c5+ 48. Ka3 cxb4+ 49. Kxb4, and now if 49...Qd6+, then 50. Qxd6+ Kxd6 51. Ka5 1:0
Jun-29-19
Premium Chessgames Member
  An Englishman: Good Evening: It appears that 46.Ka5,Qd8+; 47.Qxd8+,Kxd8; 48.Kb6,Kc8 might just barely allow Black to survive. After 46.b3,Kf7; 47.Ka5 and Black cannot play ...Qd8.
Jun-29-19  goodevans: Black chose to do two trades, <22...Nxd2> and <31...Rxh4>, that feel counterintuitive. I don't think either really helped his cause.

Nice spot, <An Englishman>. <46.b3> was an excellent waiting move that plunges black into zugzwang.

Jun-29-19  areknames: <al wazir> In your line after 49.Kxb4 Black simply plays 49...Qb5+ and I don't think that White can escape the perpetual.
Jun-29-19  Ironmanth: Clever and effective penetration on the dark squares. Thanks, chessgames.
Jun-29-19  Amarande: <goodevans> I'm not sure about 22 ... Nxd2 but it's pretty clear at move 31 that Black cannot avoid the trade anyway, and, in fact, that it will be he that is forced to spend the tempo on the exchange (if he does not do it now, 32 Qh2 and, if necessary, 33 Rh7+ will force his hand).

The immediate trade actually seems to hold out the longest; resisting it simply leads to the same fate Black actually gets, but much sooner (e.g.: 31 ... Qg6 32 Qh2 Qe8 33 Rh7+ Rxh7 34 Qxh7+ Kf6 35 Rh6+ Rg6 36 Rxg6+ Qxg6 37 Qxg6+ Kxg6 38 Ka4, and the end will be the same as the game line).

Jun-29-19  morfishine: I like this game title!

Well done <Honza>!

Jun-29-19  goodevans: <Amarande> Whilst black can't avoid the trade of rooks, initiating the trade with <31...Rxh4> leads almost inevitably to white invading with <34.Qxh4> and <35.Qg5+>.

If black just sits and waits with <31...Qd8> then this problem goes away.


click for larger view

Now <32.Rxh8> is harmless whilst after <32.Qh2 Rxh4 33.Qxh4 Qxh4 34.Rxh4> white ends up with a rook on h4 rather than the queen, which is far less dangerous for black.

Jun-29-19  sfm: This is the position after 23.Kxd2


click for larger view

It is easy to get fooled, as the pawn structure usually gives Black the h5-4-3 break-through option. But we have seen the end: after 23.-,Kg7 White beats Black on the h-file, as he can mobilize faster. It is hard to improve on matters, as <Amarande> points out. The White queen sneaks in and forces Black to passive defense. The White king penetration via a5-b5 becomes decisive.

Maybe 23.-,Kg7 is a decisive mistake. Instead Black could have said: You can't open the h-file without giving me an open g-file.

After instead
23.-,Kh8
24.h3 (dubious),gxh!
25.Rh2,Rg8
26.Rxh3,Rg4
27.Rah1(?),Rcg8
we get


click for larger view

Black is more than fine.

Jun-29-19  sfm: a5-b6!

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