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ANNOTATED GAME
Quarter Final Candidates Match, Italy 1977
T Petrosian (?) vs. V Korchnoi (?)
Annotated by: far1ey (1200)
Chess opening: Queen's pawn game (D02)
T Petrosian (?) vs. V Korchnoi (?)
Annotated by: far1ey (1200)
Chess opening: Queen's pawn game (D02)
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24... Kh7 |
Black is simply bidding his time however I think this is a psycological surrender as Petrosian with his next move realises blacks 'surrender' and plans an attack. | |||||||
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25. Re4 |
Instead of the Rd7 which can be played anytime, Petrosian plans the attack. Now his rook can come to f4, g4, and h4. | |||||||
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25... Kg8 |
Bidding time. | |||||||
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26. Kg2 |
! With black's forces distracted by the passed pawn white advances his king as well as the g pawn which will be used to break into black's king. This move becomes more apparent after black's 31st move as it also prevents any checks on the back rank. | |||||||
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26... a6 |
Preparing b5 to give some hopeful counterplay but right now black is quite lost. | |||||||
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27. h4 |
Black can do nothing against this slow but steady advance of the pawns. | |||||||
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27... b5 28. g4 |
White is now preparing the g5 break. Just watch how Petrosian calmly maneuvers his pieces. | |||||||
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28... Kh7 29. Re2 |
! A very flexible move. The reason behind this move is that when white plays g5 black might block the position with h5 and g6 when the hole on f6 will become a weakness. Re2 allows the queen to come to f3 so that if the h5 g6 maneuvre is played, the queen can exploit the hole on f6. Furthermore, the rook is better positioned here as it can come to the c-file or d-file if necessary where as on e4 it cannot come to c4. It sometimes seems unecessary to do this move and if black had certain threats/counterplay it probably would be a waste of a move. However black do anything productive so white can afford to take his time. | |||||||
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29... Kh8 |
Black is still bidding his time... | |||||||
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30. g5 |
!! Finally the g5 break. If hxg hxg black will lose quickly due to the open h-file. | |||||||
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30... h5 |
Blacks best move. He blocks the position around the king but as mentioned, when the queen comes to f3 he will have a hole on f6. | |||||||
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31. Rd2 |
White protects the rook so enabling his queen to come to f3. He doesn't mind giving up the e-file as it is of no use to him. | |||||||
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31... Rfe8 |
Black takes control of the e-file but this comes too late. Only now can one appreciate the importance of the 26.Kg2! move as if it were on g1 black would have drawing chances with Re1 and Rc1. | |||||||
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32. Qf3 |
White finally achieves his goal. Although there is no weakness on the f6 square yet, blacks next move is forced to protect the h pawn. | |||||||
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32... g6 |
The only move to protect the h-pawn but now the f6 square will be a permanant weakness. | |||||||
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33. Rd2d5 Ref8 |
Black's f pawn is also a weakness and since the rook is doing nothing useful on the e-file he bolsters the pawn. | |||||||
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34. Rf6 |
! Making full use of the weakness and applying more pressure to the f-pawn. Furthermore he threatens the decisive Rd7! | |||||||
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34... Qe7 |
A final mistake. The point of this move was so that after Rd7 Qe8 the queen protects the f-pawn however, Korchnoi under time pressure misses the following combination. | |||||||
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35. Rd7 Qe8 36. Rxg6 |
!! A very pretty move as fxg allows Qc3 followed by mate. | |||||||
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36... Qe5 |
?? Blunder due to time pressure but black was lost anyways. | |||||||
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