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Lev Polugaevsky vs Eugenio Torre
"One Life to Lev" (game of the day Mar-03-2009)
Phillips & Drew GLC Kings (1984), London ENG, rd 3, Apr-28
Slav Defense: Czech Variation. Classical System Main Line (D19)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Given 12 times; par: 23 [what's this?]

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sac: 19.Bxh7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 7 OF 7 ·  Later Kibitzing>
Oct-15-17
Premium Chessgames Member
  An Englishman: Good Evening: 6/7 for the week. If only I hadn't flubbed Friday...
Oct-15-17  newzild: 19. Bxh7+ is not only correct, but almost obligatory.

White has a space advantage and is almost fully developed, while Black's knight and Queen's rook are out of play but will remain so for only a move or two.

White can give up a piece almost by intuition.

Oct-15-17  zborris8: Here I predicted the first several moves, but thought that 25.Ra3 would lead to mate in this variation. It shows that I'm not visualizing the best defenses for my opponents, so it's something I need to work on!
Oct-15-17  QueenMe: Exact same analysis as <stacase>: though officially "insane", you can almost intuitively solve this puzzle one move at a time. The real tipping point is to have the guts to sacrifice your final (black) bishop, so that your remaining rook can safely make it to A3.
Oct-15-17  mel gibson: Interesting - the computer did not pick the Bishop sacrifice so I put in that sacrifice and ran it anyway. Black put up a stronger defense:

19. Bxh7+ Kxh7 (19.
.. Kxh7 (♔g8xh7 ♕f3-h5+ ♔h7-g8 ♖c3-g3 ♗e7-f8 ♗f4-g5 ♖e8-e7 ♗g5-f6 ♘b8-d7 ♕h5-h6 ♘d7xf6 e5xf6 g7-g6 f6xe7 ♗f8xe7 ♖a1-c1 ♗e7-d6 ♖g3-f3 ♕d8-b6 ♕h6-d2 ♕b6-d8 ♖f3-b3 ♕d8-d7 a4-a5 ♖a8-e8 g2-g3 ♖e8-b8 ♔g1-g2 ♖b8-e8 ♖b3-b6 ♔g8-g7) -1.55/21 242)

score for black -1.55 depth 21.

Oct-15-17
Premium Chessgames Member
  Willber G: One thing is certain - whenever I get a Sunday puzzle somebody will say, "Easiest Sunday ever!" Sadly they are probably correct.
Oct-15-17
Premium Chessgames Member
  gofer: By comparison with yesterday, today's POTD was <Easy>...

<19 Bxh7+ Kxh7>

<20 Qh5+ Kg8>

<21 Rg3 ...>

Also there are two other moves that are going to happen at some point, Bh6 threatening mate and Ra3 followed by Rg3 when the mate threat of Bh6 means that black's DSB cannot defend against Ra3 AND still defend the mate threat of Bh6.

Did I see the entire sequence? Nope. Did I need to see the entire sequence to play the first three moves?! Well that is a really good question...

~~~

Sorry <Willber G>...

Oct-15-17
Premium Chessgames Member
  patzer2: Black's decisive mistake appears to be the not-so-obvious error 18...Nb8? allowing 19. Bxh7+!! +-.

Instead, 18...Qb6 19. Be3 ± gives Black practical drawing chances as play might go 18...Qb6 19 .Be3 Rec8 20. Bxh7+! Kxh7 21. Qxf7 Qd8 22. Qxe6 Nb6 23. h4 Rc6 24. Rxc6 bxc6 25. Qf5+ Kh8 26. b3 Qe8 27. Qe6 Qd7 28. Qg6 Qe8 29. Qxe8+ Rxe8 30. Rc1 Rc8 31. h4 ± (+0.96 @ 31 depth, Stockfish 8.)

Earlier, Black could have kept it fully equal with the simple positional maneuver 15...Bxf3 16. Qxf3 Nb8 = (0.00 @ 39 depth, Stockfish 8.) Black probably had something like this in mind with 17...Bxf3 18. Qxf3 Nb8? but under estimated the strength of 19. Bxh7+!!

Oct-15-17
Premium Chessgames Member
  morfishine: I figured <19.Bxh7+> followed by <20.Qh5+> and even 21.Rg3/22.Rxg6+ but not the next 12 moves

*****

Oct-15-17
Premium Chessgames Member
  Kyudaime: I also got the first 3 moves 19. ♗xh7 ♔xh7 20. ♕h5+ ♔g8 21. ♖g8... and now what if Black 21st move is 21...♗f8 rather than the weak 21...g6? ;)
Oct-15-17
Premium Chessgames Member
  Marmot PFL: Looks like a fairly straightforward bishop sac, aided by some dubious defensive moves by black (17...Bg6 prevents the sac, 18...Nf8 defends the king, Nb8 doesn't, 21...g6 looks like desperation when 21..Bf8 at least holds out longer. The hard part is getting the rook to a3 by diverting the bishop which Polu solves.
Oct-15-17  Walter Glattke: 18.-Nb8?? Looks like a corrupt match, and 33.-Rf6!? should be commented. Every club player would play 18.-g6, I think.
Oct-15-17
Premium Chessgames Member
  Jimfromprovidence: As discussed back in September 2011 as well as today, 21...Bf8 makes this puzzle immensely harder.


click for larger view

Now one has to analyze 22 Bg5 and 22 Bh6 and it gets real complicated.

Oct-15-17
Premium Chessgames Member
  chrisowen: Bull put h7s hivegood javas home n journey vis assuage fleshhind hurryins harangue vis bind h7s;

hubbuild lunk h5s huffle v g8s guvbuilds lug g3s gull u g6s gumball gens uma to it a 21...Bf8 cover vim flushhull 1 guildins vam gens uma to it be 22.Rxg6+ huh vim guffaws vim gens uma to it be 22...fxg6 23.Qxg6+ vibes guffaws vis gens uma to it hiv 23...Kh8 24.Qh6+ iffy u huffles gens uma to it give 24...Kg8 25.Qxe6+ jove i efforts gens uma to it hives 25...Kh8 26.Qh6+ jds vow huffles vis gens uma to it givein 26...Kg8 27.Qg6+ jastha guffaws gens uma to it hiveins 27...Kh8 28.Qh5+ klub huffle gens uma to it givehind 28...Kg8 29.Bh6 Bf8 30.Qg6+ abo vim goodoff vam cor 30...Kh8 deo meos hullhints vis 6 7 guildins win u dun ins f8s flushhind hud cast lift win vams her majesty ave bull put h7s harangue blond punt vid wus junk good vow fischer like hot q mary zen v mane viz it's vasts aye font lip vis it's vast any loft pet fetal pony fate pylon vis neatly fop oks viva vow von guv vis nape lofty viva flav flat peony fay lepton i vow panty floe apt viva felony h7s harangue vis bull put lip punt vis bow jaw junk gunk good duff face fischer like face his hot q mary chis query g6s guffaws ray may may man manes luv amen yas men ays zen v mane viz it's vasts aye font lip vis u harangues 19.Bxh7+ hubbuild guff gift u v bullrush 18...Nb8;

bog gods bullshine vim 0 1 guildins u v
bullrush 18...Qb6 bug god buildus vim 1 2 its.

Oks vow von guv vis fig flight fun gust guv nub flung u h7s hudlinks hunglift hulllink hdqbuild hurryins hustlein hublinks hug gulch hung i gungho hoh vis gig fright bright vim hugs hungs event vis lung u hungtight 19...Kxh7 20.Qh5+ hood huffle boot 20...Kg8 21.Rg3 g6 cover guffaws vet gens uma to it a 21...Bf8 cover vim flushhull 1 guildins vam gens uma to it be 22.Rxg6+ huh vim guffaws vim gens uma to it be 22...fxg6 23.Qxg6+ vibes guffaws vis gens uma to it hiv 23...Kh8 24.Qh6+ iffy u huffles gens uma to it give 24...Kg8 25.Qxe6+ jove i efforts gens uma to it hives 25...Kh8 26.Qh6+ jds vow huffles vis gens uma to it givein 26...Kg8 27.Qg6+ jastha guffaws gens uma to it hiveins 27...Kh8 28.Qh5+ klub huffle gens uma to it givehind 28...Kg8 29.Bh6 Bf8 30.Qg6+ abo vim goodoff cor 30...Kh8 deo meos hullhints vis 6 7 guildins win u dun ins f8s flushhind hud cast lift win vams her majesty ave bull put h7s harangue pelt tip pilt down mans lint vis till plinth put tulip etc ifs hurry tins harangue guv burlier vow chubb engage bung ups hung i vow ugly runs u kink lug mud put from vow vis winch huss husk his huts hunts hints flick guff gift flight cuff fig cud dick guff gift flight flid flick dug dig cuff cliffs ums cinch hod goof gifts g6s guffaws f8s flushhull vis 1 guildins ave Bull put h7s harangue;

Oct-15-17  scormus: Looking it at 19 W to play, I immediately went for 19 Bxh7+ simply because it was a puzzle. Then the moves in the sequence Qh5+, Rg3, Rxg6+, Qxg6+, Qh6+, .... were rather easy to find, too easy.

<Jim> Yes, good thinking. B didn't have to play 21 .... g6? The best and most natural move is 21 .... Bf8! Then it looks like 22 Bg5 with the aim of Bf6.

Oct-15-17  drollere: black ends up cursing that pawn at e5!
Oct-15-17  zborris8: <chrisowen> It's not stream of consciousness writing, but a task that your brain is now performing out of a sense of habit.

Times Word used
20 vis
18 gens
18 uma
11 vim
9 vow
4 guv
3 viva
3 ave
3 vam
2 viz
2 von

Your 10 key words of habit since 2016:

vow
von
viva
vis
vim
vide
vet
vast
guv
ave

Oct-15-17
Premium Chessgames Member
  chrisowen: <zborris8> Hey paddy don't make a meal of it no.
Oct-15-17  zborris8: Breaking the cycle of habituation is like breaking ice - once it cracks, it shatters. (Joyce planned every single word he wrote.) Good luck!
Oct-15-17  Muttley101: I saw this combination played live :)
Oct-15-17
Premium Chessgames Member
  Amulet: <chrisowen>

Will you please enlighten me as what your intention may be in doing this foolishness of commenting on a game, that do not make sense. You always make a fool of yourself.

Once is good enough, twice may be pardonable, thrice makes one to raise an eyebrow. You already made a career doing this nonsence.

Oct-15-17  Murky: I greatly enjoy and appreciate chrisowen's commentary. - Murky
Oct-15-17  JimNorCal: Muttley101: Really?!?
What a treat. Did Polu pause at any time or did the combination pretty much flow after Bxh7+?
Oct-15-17  stst: Late, give two possible lines, both starts with 19.Bxh7+ to kick off series of actions (A) if KxB, it's easier for White:
20.Qh5+ Kg8 (Kf8 is obviously smothered..Qh8#) 21.Rg3 g6
22.Rxg6+ (have to sac to open fire) fxR
23.Qxg6+ Kh8 (Kf8==> Bh6#)
24.Ra3 (supply more ammunition) Bf8 (if Rg8, Qh6#) 25.Rg3 .... Nothing saves

(B).....Kf8
20.Qg4 (Qh5 somewhat inferior position wise) Bf6 21.exB gxf6
22.Rc7 QxR ==> Q lost, Nd7 ==> Bd6+... nothing saves the mate Qg8#

see if Polu gave some other more beautiful attack ...

Oct-15-17  stst: got it, basically the same, Polu simply "wandered" the Q a little bit, but at last, Ra3 is necessary to deliver.
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