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| Dec-18-04 | | JohnBoy: Petrosian is bold with his king - see also
Kasparov vs Petrosian, 1981 |
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Jul-14-05
 | | tpstar: Petrosian was a true master of the positional exchange sacrifice (26. g3 Bxe5!? 27. gxh4 Nd4). Here White's weakened Kingside plus Black's active pieces give compensation. After 36 ... f4, one threat is 37 ... Bxg5 38. hxg5 Qxg5+ winning a Pawn and intending ... g3 at some point, so White tried 37. Qg4. Then Petrosian conceived the imaginative plan of 37 ... Ka5! to nudge the Ra3 off the third rank leading to ... Bxg5 & ... Nf3+ with Discovered Check ideas. White gave back the exchange with 38. Nf3 Kb4 39. Nxd4 Kxa3 only to wind up in a lost endgame. With that, try to work out why 38. Ra2 or 38. Ra1 would be bad for White. |
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Jul-14-05
 | | OlimpBase: And, of course, Dückstein is the man to sensationally beat World Champion Botvinnik at 1958 Olympiad: Dueckstein vs Botvinnik, 1958 |
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Jun-22-06
 | | An Englishman: Good Evening: <chessgames>, did you know that geologists released a report today stating the Southern San Andres Fault (runs under LA) is overdue by decades? |
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| Jun-22-06 | | Andrew Chapman: 30..Nd4 suggests Petrosian may have been happy with a draw |
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| Jun-22-06 | | The17thPawn: Playing Petrosian had to be maddening! He plays what seem like provocative but ever so slightly inferior moves and then when his opponent pounces they find they have either been out calculated or sucked into an inferior position. Very few players could make him pay for this kind of play but when they did the games were epic. |
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Jun-22-06
 | | chessgames.com: <An Englishman> No, we had no idea, and the pun was prepared weeks ago. Chalk it up to coincidence. |
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| Jun-22-06 | | chessmoron: Vintage TVP, when Petrosian sacrifice his pieces, man, you are going down to the loser spot instantly. |
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| Jun-22-06 | | romerno: Why not 32.Nc3? Is it because of 32.--Nf3 + ? |
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| Jun-22-06 | | EmperorAtahualpa: <geologists released a report today stating the Southern San Andres Fault (runs under LA) is overdue by decades?> <An Englishman> What does that mean? That an earthquake is impending? Anyway, very clever pun, <chessgames.com>! |
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Jun-22-06
 | | Phony Benoni: Can it ever be good to have two sets of doubled isolated rook pawns? |
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| Jun-22-06 | | CapablancaFan: Once again Petrosian makes yet another exchange sacrafice 26.Bxe5!. Will Petrosian's opponents ever learn? Giving Petrosian 2 passed pawns is almost as good as checkmate. Interesting article about the San Andreas today. http://news.yahoo.com/s/ap/20060621... |
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Jun-22-06
| | An Englishman: Good Evening: <Phony Benoni>, if Petrosian ever had two sets of doubled isolated rook pawns, those were probably very good. For mortals like us, probably never. |
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Jun-22-06
| | An Englishman: Good Evening: <EmperorAtahualpa>, at this time, seismologists and other scientists have no means by which they can predict an earthquake. In fact, here is a thought experiment, if you're interested: let's say you're a scientist who develops a crude instrument for predicting quakes. Let's say you calculate this early model to have oh, only 20% accuracy. Let's say it predicts a 7.9 Richter scale in LA within the next 6 months. Given that you know this instrument is probably wrong, but *might* be right, do you notify the public? |
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| Jun-22-06 | | MrMelad: An Englishman: a 7.9 Richter scale earthquake in the center of the city will destroy most of LA, so yes I would notify - even if the price is total panic. I would include the information that the earthquake is only 20% likely to happen. Also note that 20% is a very HIGH percentage of accuracy ragarding earthquakes.. Today people can only predict earthquakes a few seconds (or minutes) before it actually happens. So if you were to have this kind of instrument - you could quit chess and sell it to Japan... :) |
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| Jun-22-06 | | MrMelad: I think 14. a4 is a move that doesn't do anything - i would recomend 14. Kh1 preventing black's 14th move - if 14 Kh1 e5 -> 15. dxe5 Nxe5 16. Bf4! |
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| Jun-22-06 | | patzer2: There's an interesting article on the San Andreas fault at http://www.sfgate.com/cgi-bin/artic... (San Francisco Chronicle). |
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| Jun-22-06 | | patzer2: Petrosian's 26...Bxe5! is a good example of a true positional sacrifice, giving up the exchange for a strong central Knight Post and the isolation and weakening of White's Kingside pawn structure. Fritz 8 indicates it's the best move, but assesses it's value as leading only to an equality. However, it may be a case where the computer is underestimating the strength of this move. Black's moves are much easier to find than White's, who has a difficult defensive task, and Black is in little danger of losing. So the sacrifice looks to be sound. |
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| Jun-22-06 | | kevin86: A seismologist:a person who is paid to find fault(s). It looks like a pretty good game until white finds himself short a couple of pawns and a "minor exchange". |
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| Jun-22-06 | | patzer2: <tpstar> Sorry if I didn't notice my comment mirrored your's. In any event, this is an excellent example of a true positional exchange sacrifice. Perhaps 29. Qd3 or 32. Nd2 might hold better for White, but even there the defensive task looks difficult. |
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| Jun-22-06 | | dakgootje: like around move 20 i thought black was nicely under pressure and white might have a win somewhere. around 8 moves later i wasnt too sure anymore. and about 10 moves later i knew white was lost lol |
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| Jun-22-06 | | Mr. Braithwaite: 24.g3? it could have been 26.Bxd4 Nxd4 27.Qd3 Rh8 28.Nc3 Rd8 29.h3 Nb3 30.Qc4 Na5 31.Qf1 Qd3 = 38.Nf3? loses real fast but there's not much left to fight with e.g.
38.Qd1 Qc5 39.Ra1 f3 40.Kh1 Bxg5 41.hxg5 Qxg5 
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| Jun-22-06 | | clampolo: Nice, game of the day is by Petrosian, one of the most overlooked champions. And to top it off, its a great defensive effort. I don't think anyone in the history of chess could defend like Petrosian. Game after game, you see him under a ferocious attack and then magically turning the tables with an exchange sacrifice. |
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| Jun-22-06 | | CapablancaFan: <clampolo> You are 100% right regarding Petrosian, I just wish more people understood that about him. His games are one of the most instructive of all GM's. I think because Petrosian's style of chess was defense based and not as "sexy" as other GM's he gets overlooked often. Everytime I look at this guy's games I always learn something. |
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| Jun-22-06 | | guidomiguel: sexy chess huh? Is that like chess while losing clothing hehehe
But seriously, Petrosian's games have some real quality to them, but I think they should be studied after a few other gm's like morphy and the like. |
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Kibitzing
sac: 26...Bxe5