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Tigran Vartanovich Petrosian vs Julius Kozma
13th olm final A (1958), Munich FRG, rd 5, Oct-15
Torre Attack: Classical Defense. Petrosian Gambit (A46)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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Aug-08-16  Razgriz: Wow I did not see this at all.
Aug-08-16  lost in space: 41. Rxe7 Rxe7 42. f6 and game over
Aug-08-16  YouRang: Easy Monday


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Quite easy - white clearly has a pawn fork in store. It doesn't work so well on a bishop, but it works great on a rook.

<41.Rxe7 Rxe7 42.f6+>


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White will end up a piece better after 42...Kf7 43.fxe7 Kxe7 44.Nxc5 which is an easy win in the endgame.

Aug-08-16
Premium Chessgames Member
  patzer2: Black's decisive mistake appears to be 37...Re5? allowing 38. Rxe5 to (+1.48 @ 21 depth, Deep Fritz 15).

Instead, 37...gxf5 38. gxf5 Rh6 keeps Black in the game.

Early in the opening, instead of 4...b6, I prefer 4...Nc6 as 5. d5 Qa5 6. c3 Nxd5 favors Black. Also preferable to 4...b6 is 4...Qb6 = or 4...d5=.

Aug-08-16  AlicesKnight: Nice simple 41.Rxe7; if ....Rxe7 then 42.f6+ wins the R and leaves White up a piece, safe enough to go and put the kettle on.....
Aug-08-16  YouRang: A couple late blunders by black:

First, after <37.f5>, black had this position:


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Black simplifies with probably draw simply with <37...gxf5 38.gxf5 Rh6>


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It continued, <37...Re5? 38.Rxe5 dxe5 39.Rd2>


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Here white threatens to pin the bishop with Rd7 then win it with the pawn fork. Black doesn't want to move the bishop since it guards against Nxc5. Black ought to just eliminate it with 39...gxf5 40.gxf5. Now, 40...Rf8 threatens Pf5 and the pawn fork threat is gone.

But instead, he went with <39...Rf8?>, which allowed the pin <40.Rd7>


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Black has no way to save the bishop, e.g. 40...Re8 31.f6+. Black tried <40...Rf7>, obviously not seeing the puzzle solution <41.Rxe7 >.

Aug-08-16  Cheapo by the Dozen: A Monday puzzle that's a Petrosian position.

A Monday puzzle that, rather than being a flashy mate, is a decisive endgame move after a long positional struggle.

Coincidence? You be the judge.

Aug-08-16
Premium Chessgames Member
  agb2002: White has a knight for a bishop.

Black threatens gxf5.

White can win a piece with 41.Rxe7:

A) 41... Rxe7 42.f6+ Kf7 43.fxe7 Kxe7 44.Nxc5 + - [N].

B) 41... gxf5 42.Rxf7+ (or 42.gxf6) 42... Kxf7 43.gxf5 + - [N].

Aug-08-16  morfishine: <41.Rxe7> and White is a piece up

*****

Aug-08-16
Premium Chessgames Member
  whiteshark: <41.Rxe7>, and that's it.
Aug-08-16  Caissas Clown: Was 4..b6 the losing move? Or at least , a poor choice,conceding the initiative too soon? Surely 4..d5 , or even Qa5 , were better.
Aug-08-16  YetAnotherAmateur: 41. Rxe7 and black is simply down a piece. Trying to respond with 41. ... Rxe7 42. f6+ Kf7 43. fxe7 Kxe7 makes things only slightly less worse for black.
Aug-08-16
Premium Chessgames Member
  TheTamale: Like <Penguincw>, I also struggled to see this. I think I saw Petrosian's name and immediately got intimidated--how can I be expected to think like Petrosian? I finaly saw it, proving that even Iron Tigran occasionally found himself in Monday puzzle positions.
Aug-08-16  saturn2: RxB drags the black rook into the pin f6
Aug-08-16
Premium Chessgames Member
  gawain: A decisive combination to win a piece: entertaining and instructive.
Aug-08-16
Premium Chessgames Member
  kevin86: White sacs the exchange, then gains a whole rook. Monday WO queen sac.
Aug-08-16  kamotekayo: <YouRang:>
<Black simplifies with probably draw simply with <37...gxf5 38.gxf5 Rh6>> What if white plays Nxd6?
Aug-08-16  YouRang: <kamotekayo><<...draw simply with <37...gxf5 38.gxf5 Rh6>>

What if white plays Nxd6?>

If 38.Nxd6


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Probably 38...fxg4+ 39.Kxg4 Bxd6


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Black is up a bishop

Aug-08-16  TheFocus: A famous game.
Aug-08-16
Premium Chessgames Member
  chrisowen: Oh brocade grooms e7 evermore lace over am an gave mans lead ploy oboe cram ave gored it i under egs it whelked it hand over daddys d7 danglers have man maw jaw any he baffle go man brock out it alink it eddys have cleaned it i under egs it whelked it hand over am e7 ebberarm an flop vam jank it kind of means as have vam clean an gave e7 eggshead oboe over brocade groom e7 evermore lace over am an gave mans lade as boon crap ave go rag grapple aves eg grossed it i under egs it whelked it hand over daddys d7 danglers man deserve man maw it wags any ave yeah it hand over am e7 ebberarm as have clean by he bells baffle go of fit alink it eddys have cleaned it i under egs it whelked it hand over am e7 engagers lap pov vs am jr jank it kind of mens as have gave e7 essayers bonds off fried it with have gaves as and floggy as ash fleshhung 39Rf8 freshmans am an gob ave 2 lend as ash bangfence 39gxf5 fellas have gob equal it alink it eddys have cleaned it i under egs it whelked it hand over am an as have clean gave e7 eggshead have hang mans and dabs bands efface lane glean ball clamp am ear baffle lads drags have band doors am cad a blogman lads drags have band doors floggy ramps fangas lane band darns carafe ash camp an eggeras a kit i under egs it whelked it hand over as have cleans d7 danglers across e7 ebberarm ash band dabs have a do rev mans loop hand have by cad vs lane ables an et al it alink it eddys have cleaned it i under egs it whelked it hand over as have man by efface off as am over deal it alink it eddys have cleaned it i under egs it whelked it hand over as have by offs e7 ebberarm am:
Aug-08-16
Premium Chessgames Member
  chrisowen: gave a 41.Rxe7 evermore pad paddle pend panda across e7 ebberarm exactly as have clean governed it i under egs it whelked it hand over as have cleans e7 eggshead engagers errandas essayers evermore ebberarm ebonyash ah as am an fang gene came fang fag frag ave gaff bad fancyarms 39Rf8 flashhang 2 arrears ave fleshhang 39gxf5 fellas have gob an gel efface off man gore games cell an gm cad da base as lend ash e4 it eddys am as have clean vape vespar pan jap pave java jam cafe crem as have it's vamoose as have left it i under egs it whelked it hand over as have cleans d7 danglers across e7 eggshead as lend ash and e4 it eddys am as have came a had call cab rad ave affable mans radar d6 dangler before gave lane by ash am rock e7 evermore:
Aug-08-16  indomega: Hmmm...not so sure about 24...Nb8. I would do

24... Bf6 25. Nxf6 Rxf6.

Aug-09-16  kamotekayo: <YouRang:>
<Black simplifies with probably draw simply with <37...gxf5 38.gxf5 Rh6>> What if white plays Nxd6? I mean 39.Nxd6 is it a draw?
Aug-09-16
Premium Chessgames Member
  OhioChessFan: <kamo> at some point Black will play Bxd6+ and it seems to me to be dead drawn, as an example:

37...gxf5 38. gxf5 Rh6 39. Nxd6 Rh3+ 40. Kg4 Rh4+ 41. Kg3 Bxd6+ 42. Rxd6 Rxe2 43. Kxh4 Rxa2


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Aug-09-16  YouRang: <kamotekayo><What if white plays Nxd6? I mean 39.Nxd6 is it a draw?>

Sorry, I misunderstood your earlier post. If <37...gxf5 38.gxf5 Rh6 39.Nxd6>


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I see that <OhioChessFan> already addressed this, but as he pointed out, <39...Rh3+!>


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How does white escape checks with any advantage?

- 40.Kg2 Rh2+! 41.Kxh2 Bxd6+ 42.Rxd6 Rxe2+ 43.Kg3 Rxa2 =

- 40.Kg2 Rh2+ 41.Kg1 Rxe2 42.Nxe8+ Kf8 Nc7 43.Rxa2 =

- 40.Kg4 Rh4+ 41.Kg3 Bxd6+ 42.Kxh4 Rxe2 43.Rxd6 Rxa2 =

- If the king tries to run behind the Re2: 40.Kf2 Rh2+ 41.Ke1


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41...Bh4+! drops a rook

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