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Bent Larsen vs Tigran Vartanovich Petrosian
"A Game of Shadows" (game of the day Feb-09-2012)
Second Piatigorsky Cup (1966), Santa Monica, CA USA, rd 7, Jul-27
Sicilian Defense: Accelerated Dragon. Maroczy Bind Breyer Variation (B39)  ·  1-0


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Given 50 times; par: 34 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 9 OF 9 ·  Later Kibitzing>
Jun-21-14  Conrad93: I forgot to remember that 99% of puzzle on involve a queen sacrifice. Damn!
Premium Chessgames Member
  Honza Cervenka: Nice but unfortunatelly a bit too famous for puzzle.
Jun-21-14  Alanx: Stop seeing the end. 20.-Bxc5! would have finished the match earlier.
Premium Chessgames Member
  Jimfromprovidence: There is another nice way that white wins if black plays 28...Bd5 beside 29 Bh6.

Try 29 Rd4!

click for larger view

That rook is untouchable.

Jun-21-14  znsprdx: @Alanx 20. BxNc5 - interesting if you are correct- what is it no one has seen all these years later?
Premium Chessgames Member
  chrisowen: I dip to head over a g6 bag queen's a flap good a h6,

arrears black f6 went wrong should have tried to break free at g7 or f5 skim over once a bf6 takes right route left to his own devices pick a patch g6 first eg oh sore point f6 was the error allows to infiltrate again h6 and two step feint I g7 er many down sides allows the sac at h6 over across a line g6 breaks up blacks camp I call I wager g6 as first.

Lip as heads up have indeed all free fair and well to free do f5 marube a knight g7 back could prove equal g6 beckon a cycle one gun me feel at he get go have marks out territory it your honour in believe mates not far off f7 takes g6 back and g4 bishop crashes at aim e6 ellucidate a bicep e6 curl in f4 bastion of hope rook malady strike f7 comes under attack similar to hug f4 when rook picks off farm hand main point I f7 invasion when light is the exchange down in yet aim at should win blacks monarch e8 gives black plenty of headaches again save he f7 a windmill around fanciful crum pivot able mission choose a wave in germane family ja ship for black king's flap engaged g8 as I am rook f7 wander grief g6 bestows him buffed about at f3 zagged ghosted along biffed

cage success led him astray g7 promptly calls for the sac at gates g6 zipped around light should pick up her majesty d8 cover in 8g or at a stretch e8 maybe even at 7 black king's alive no more flop over time given g6 zeal to bed rook in d3.Tail up line for a cedes ground in fly cuffed aim deed free a hearty guffaws abound right gleans the edge in beck and call it is ok g7 aim cred has too vice go for a f5 and indeed g7 knight back a e6

flight in cad good try gift a done deal as the efface up nefarious horse e6 spends too many tempi ie park horse e6 before the cart in f3 win f4 or even take back aim in crappy f7 grabs g6 queen's amounted to the same flap good pave flog a king's pave flow over now g8 gets hustled h8 and fair to a do see double trouble I be lane dutiful for f4 rook grab at fed e6 knight to untangle augment a touch a bobble around pitching back to switch inch f5 like at g7 rung oh out of trouble g8 it is eg in sense g6 as first mass la bind for ogles son ar blip a f6 aint it ok in fed mack under the rook radar sizes up line f7 l0 win cradle to the grave g6 etc able wire bus in f6 bad incede the creed h6 ghost a g6 freed f6 able give forces for flange knight freer e6 of ghoul enough too for flow in off f6 dusty cart fretted g8 monarch has more cover e6 long trek am g7 engine suggests about equal good a game feels right receed g8 since down the hatch queen's a good flapper right h6 much as free a give feint try got headache at having sight f7 should g7 or win g6 lance gleaned have gg in store glorify oh door it book at g7 or f5 prance and g4 threat of his own decadent bishop retreat at h3 I rook over let gap in f3 escape f7 at practice as the fetch f6 deceive two step back up g7 light holy queen's am a flap gave of course g7

and I f5 preferred around flies f6 have to feed off engage victor crash a fiefdom around his head more safe I feel.

A dismissive get at f6 hand big pull back at g7 allow ground for monarch harangue slick headed over straight port of calls 25.Qxg6 Nf4 26.Rxf4 fxg6 27.Be6+ a oomph effort job at hand mind a nice circle around black monarch g8 inept black rooks and monarchs at a loose b6 call swerve at a b2 or cover c6 still has to get back in e8 or h7 dervish cleric catch better glide lane e5 could be sacced too lift off I e5 pocket g7 light could afford to punt a rook d5 reigning it now in evermore rook a do the math you over show boat back in hared around a corner g8 and alf h7 claw

back I his queen's flopped again purloin bed other bind d5 germane family f7 around black monarch g8 as hog lesson slide a g6 f7 lane gifted glisten to judge dig be at I gooses plump harvest h8 offer give to gaffers 27...Rf7 28.Rxf7 Kh8 in ar not so good shape now him fend off h8 basic lide hinge h6 boxer b6 queen's a fag pin short drift c6 in calm white has to reinterpret checks around a g8 and win e8 monarchs at betwixt an betweens 28...Be5 29.Bg5 discovered check queen wins a b2 or even e7 goes via line a c6 acutes e7 ment I quarter e8 back take e5 and rook queen's at e8 along in h8 demarcate 29.Rg5 wins a g6 like b5 pawn even am g3 rook black is loose monarch h8 cover in front h7 wins majesty g8 fears it sign of h7 or deem in a tour free to try do dig the end it signalled 29.Rd3 Qe8 30.Bc1 forced f7 chuck on a perogative saves again ahead by a clear bishop at c1

Premium Chessgames Member
  Marmot PFL: Larsen commented that the queen sac was simple, although it surprised some of the spectators who might have expected the repetition of moves. He had to see it when he played 20 e5!, which is the star move, giving up a pawn to get an attack tempo with the queen.
Premium Chessgames Member
  thegoodanarchist: Pry open the h-file, then sac, sac, mate :)
Premium Chessgames Member
  Marmot PFL: <thegoodanarchist: Must be nice to defeat the reigning world champion, even if it is just with the White pieces.. :)>

Larsen beat Petrosian twice in this event, once with each color. Petrosian's results as WC were not very good, outside of Olympiads and his first match vs Spassky.

Premium Chessgames Member
  perfidious: While the statement on Petrosian's performance overall as reigning champion is true, it is no different than things were with his predecessors: Alekhine was the previous champion to post consistently excellent results as titleholder, and it would only be with Karpov's ascent to the throne that the world would see another.
Premium Chessgames Member
  agb2002: I have nothing to add to my Sep 10th 2010 post.
Premium Chessgames Member
  FSR: <Marmot PFL> True, although he did tie for first with Keres at the First Piatigorsky Cup (1963) shortly after becoming champion.
Premium Chessgames Member
  Petrosianic: <Larsen beat Petrosian twice in this event, once with each color. Petrosian's results as WC were not very good, outside of Olympiads and his first match vs Spassky.>

Not very good by Karpov/Kasparov/Carlsen standards. We've gotten spoiled lately by having 3 of the last 5 champions be dominating ones. But throughout history, that's been the exception rather than the rule. Of the non-dominating champions, Petrosian's results were actually better than most.

Jun-21-14  Moszkowski012273: 28...Be5 was a wee bit better.
Jun-21-14  gars: Petrosian lost a third game in this tournament, this time against Portisch (White), a King's Indian Defense which lasted thirty-two moves.
Jun-21-14  Rookiepawn: Hey, thanks to all who replied to my useless idea. They all proved me wrong, but <Jimfromprovidence>'s variant is the most elegant.

"Untouchable?, we'll see that" was my first thought... And yes, it is untouchable so the rook can still move on the rank.

CG rocks!

Premium Chessgames Member
  Jonathan Sarfati: Don't forget that Petrosyan was the first world champ actually to win a world championship match while champ (Petrosian - Spassky World Championship Match (1966)) since Alekhine - Bogoljubov World Championship Rematch (1934)
Premium Chessgames Member
  Breunor: IS 20 B x c5 better than e5? I think it wins a queen for a rook and bishop, but that may not be better than the game.

20 B x c5 P x c5 21 Nf6ch B x f6 22 R x d8 Rf x d8.

Is there a better line for white here?

Jun-22-14  M.Hassan: "Very Difficult"
White to play 25.?
White is a pawn down and has a Bishop for a Knight.

The open h file is tempting:

25.Qxg6 fxg6
A) 26.........Kh7
27.Rh3+ Bh6
28.Bxh6 threatening next Bf8#
29.Bxf7 Qd7
30.Bf8+ Qxh3
31.gxh3 Rxf8
White is stronger and should win.

B) 26..........Rf7
27.Bxf7+ Kh7
28.Rh3+ Bh6
And the above line can be repeated.
Time to check
My lines are way different

Premium Chessgames Member
  Honza Cervenka: <Alanx: Stop seeing the end. 20.-Bxc5! would have finished the match earlier.>

Well, it is not so simple. After 20.Bxc5 dxc5 21.Nf6+?! (21.Qxc5 is probably better here) 21...Bxf6 22.Rxd8 Raxd8 (diagram) black can be satisfied.

click for larger view

White nominal material advantage (Queen against Rook and Bishop) is compensated by powerful Bishop pair and firm control of d-file. The game can continue with 23.Qe2 (black was threatening Bd4) 23...Be5 24.b3 (24.Rd1 drops the Pawn on b2) 24...Rd4 25.Bf3 Rfd8 and it is already black who can hope in advantage. Of course, both players were well aware of that, Petrosian intended to sac his Queen in this way and Larsen was absolutely right to decline this offer.

Premium Chessgames Member
  thegoodanarchist: The Black Queen never moved.
Nov-04-16  spazzky: 20.Bxc5 can also be met with ...BxNd5 also, no? Then white's beautiful knight is gone, and with it the attack
Jan-26-17  Albion 1959: To Chrisowen - Is that Nadsat as used in The Clockwork Orange?
Mar-17-17  clement41: The kind of queen sac that's risky because heavily calc-based. one calc mistake and it's over
Sep-14-17  Toribio3: Larsen is unorthodox player. He prefers less analysed variation on various openings. Element of surprise is his most priority.
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