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Vasilios Kotronias vs Mark Hebden
Isle of Man Masters (2007), Port Erin IMN, rd 2, Sep-23
Spanish Game: Morphy Defense. Chigorin Defense Panov System (C99)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Oct-21-07  notyetagm: The following comment is from http://www.chesspublishing.com/cont..., on the position arising after 83 ♔f8-g7?!:

<See Kotronias,V-Hebden,M. Incidentally, Black missed a great chance to save half a point at the end of this game:


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Black to play and draw>

Here the great tactician Hebden made a tactical oversight. He could have saved 1/2-point with the Petrosian-like <KNIGHT FORK> combination 83 ... ♕h3-h8+!!.

(VAR) Position after 83 ... ♕h3-h8+!!:


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The point is the line 83 ... ♕h3-h8+!! 84 ♔g7x♕h8 <deflection from f7, decoy to h8> ♘d6xf7+ <royal fork> 85 ♔h8-h7 ♘f7x♕e5, shown below.


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And now the Black e5-knight prevents the White g5-passer from promoting while the Black king stop the White b3-passer from promoting, so Black draws(!).

Aug-04-19
Premium Chessgames Member
  fredthebear: Thank you <notyetagm>!

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83 ... Qh3-h8+!! the White g7-king must defend f7-tactical base
from Defending one square is a full-time job by notyetagm
He missed Petrosian's corner Q sac, N+ fork for a draw
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He missed Petrosian's corner Q sac, N+ fork for a draw
from yQThee Queen is Mean Vol. 5 so says Fredthebear by fredthebear
83 ... Qh3-h8+!! White g7-king cannot defend the f7-,h8-squares
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