Tigran Petrosian vs Aleksandar Matanovic (1958)

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Tigran Petrosian vs Aleksandar Matanovic
Portoroz Interzonal (1958), Portoroz SLO, rd 5, Aug-12
Queen's Gambit Declined: Ragozin Defense (D38) · 1-0

White to move.

ANALYSIS [x]

1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1

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Dec-09-06		notyetagm: 23 ♖x♗a8!, another example of the <FORK-OVERLOAD TRICK> but strangely not involving the enemy king. As always, the problem for the defending Black rook is that it is <OVERWORKED>. The Black c8-rook is the -only- defender of the loose Black c3-queen but it is also the -first- defender of the Black a8-bishop because it blocks the line of the Black f8-rook which -also- defends the Black a8-bishop. See, that is the whole point of this particular tactical trick. The Black c8-rook cannot be the -first- defender of the Black a8-bishop and the -only- defender of the Black c3-queen. The attacker will make the <OVERWORKED> defender go to where it is the first defender (the Black a8-bishop, 23 ♖x♗a8!), thereby <DEFLECTING> it from where it is the only defender (the Black c3-queen). Very nasty. 23 ♖x♗a8! and then 23 ... ♖x♖a8? <deflection from c3> 24 ♕x♕c3 23 ... ♕x♕a1 24 ♖x♕a1 <rubberband>

Jul-17-09		totololo: The final Rxa8 can be seen for many moves as elimination of the defender.... still Black falls for it! UNBELIEVABLE!

Jul-17-09		Fusilli: <totololo> <UNBELIEVABLE!> I agree. Not at this level.

Jul-18-09		whiteshark: What was blacks best <22...> then?

Jul-18-09		Fusilli: <whiteshark> 22...Qb4, I'd say. White has a clear advantage (black's pieces are a bit tied up and not well coordinated, which seemed to happen often to Petrosian's opponents!) but at least he is still alive.

Oct-05-21		kingscrusher: The interesting thing about this game is that we a symptom disaster without seeing a cause. It does turn out that if black plays either Qb4 or Qc5, it is also completely disastrous for black (more than +6 for White!) because of basically Bd3+ and its consequences for pinning up black in various directions (a7-h7, f5-c8, as well as moves like Ne6 lurking for Qa1xf6). Analysis: Tigran Vartanovich Petrosian - Aleksandar Matanovic 1-0 5.0, Portoroz Interzonal 1958 click for larger view Analysis by Stockfish 14: 1. +- (6.62): 22...Qc3 23.Bd3+ Kg8 24.Bf5 Qxa1 25.Rdxa1 g5 26.Bg3 Bc6 27.Bc7 Ne8 28.Nxc6 Rxc7 29.Bxd7 d4 30.Nxd4 Rxa7 31.Rxa7 b5 32.Bxb5 Ng7 33.Nc6 Nf5 34.Bc4 Rc8 35.Bxf7+ Kh8 36.Bd5 h5 37.Nd4 2. +- (6.85): 22...Qb4 23.Bd3+ Kg8 24.Bf5 g5 25.Bg3 Rfd8 26.Bd3 Qc3 27.Rxa8 Qxd3 28.Rxd3 Rxa8 29.Qb2 Ra5 30.Rd1 Rda8 31.Nf5 Kh7 32.f3 g4 33.Qb1 Ra2 34.Rc1 R2a5 35.Ne7+ Kh8 36.fxg4 Ra4 37.Bf4 3. +- (6.85): 22...Qc5 23.Bd3+ Kg8 24.Bf5 g5 25.Bg3 Rfd8 26.Bd3 Qc3 27.Rxa8 Qxd3 28.Rxd3 Rxa8 29.Qb2 Ra5 30.Rd1 Rda8 31.Nf5 Kh7 32.f3 g4 33.Qb1 gxf3 34.gxf3 d4 35.Nxd4+ Kg8 White is clearly winning (Gavriel, 05.10.2021) Funny stuff behind the scenes of this game. Extreme power.

Apr-01-23		ndg2: Lol, a couple of moves before Matanovic played the ill-fated Qc3, I thought to me: "in any case, he can't play Qc3 bc of Rxa8" and then he exactly did that.

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