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Juan Manuel Bellon Lopez vs Jose Garcia Padron
Las Palmas (1981), Las Palmas ESP, rd 1, Jun-??
Sicilian Defense: Kan. Modern Variation (B42)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Feb-11-14  mel gibson: Feb-11-14
StevieB: Qg5 then mate to follow.

Not mate for another 30 odd moves.
Black is in a hopeless position & has to lose material.

Feb-11-14
Premium Chessgames Member
  NM JRousselle: I don't think this is a very good puzzle. White has a crushing position with several moves that get the job done.

Ne5 even has the threat of trading queens on a7 followed by a check on e7 and winning the exchange on c6.

Feb-11-14
Premium Chessgames Member
  morfishine: <29.Nxe5> Black cannot take the Queen due to 29...Qxe3 30.Ne7+ Kh8 (or 30...Kf8 31.Rxf7#) 31.Nxf7#

Since 29...Qxe3 is not possible, what can Black do?

It took me awhile to calculate that <29...Bc8> fails eventually: 29.Nxe5 Bc8 30.Qxa7 Rxa7 31.Nc6 Rad7 32.Nxd8 Rxd8 33.Rxc8 Rxc8 34.Ne7+Kf8 35.Nxc8 and White is up a Rook

Since Black must clear the 7th rank but 29...Bc8 fails, where does Black's WSB go? Putting two and two together, <29...Bxd5> looks practically forced. The basic idea, (besides clearing the 7th rank), is due to all the forks looming [netting White a whole rook], Black might as well limit the damage to a minor piece (Hopefully!).

<30.exd5 Qb7> not 30...Rxd5 31.Nc6 and Black goes down a whole Rook

<31.Nc6 Rd7 32.Rce1> Threatening 33.Qxe8+ followed by mate. But Where does the Black Knight go? If 32...Nf6 33.Qg5 g6 34.Nh6+ followed by 35.Rxf6 or 35.Qxf6 with a crushing attack. 32...Nd6 is impossible due to 33.Nxd6 Rxd6 34.Qe8+ and mate next move. Neither the Queen nor Rook can play to the back rank due to the dominating White Knights. If 32...Kf8 33.Qg5 and again the d-pawn is taboo due to 33...Rxd5 34.Rxe8+ Kxe8 35.Nxg7+ Kf8 36.Ne6+ Ke8 37.Qxd5 fxe6 38.Qxe6+ Qe7 39.Qxe7#

Since 32...Kf8 fails to 33.Qg5, Black is reduced to one move: 32...Nc7

<32...Nc7> Forced and arriving at a unique situation: Even with reduced material (down a piece), the remaining ones are getting in each other's way

<33.Qg5 f6 34.Nce7+> And so Black loses a rook anyways prior to his position collapsing completely

*****

Feb-11-14  CC0112358: agb2002 A) line with the N fork is an excellent alternative where white gains material advantage and eventually wins.

However, following the prescribed line of

29.Nxe5 QxQ 30.Ne7

to TheTamale's point, if

30....Kh8

then with black's Q on e3 and white's Q gone (black is +8 with -p -N +B +Q) white's mate is not obvious or imminent and black has a good fighting chance so long as he deploys his pieces from the 7 and 8 ranks.

Feb-11-14  weary willy: Oh goodness ... suggest you delete that post before somebody notices
Feb-11-14
Premium Chessgames Member
  john barleycorn: <weary willy> too late :-)
Feb-11-14  PJs Studio: I looked at this for two minutes and was enamored by Nh6+, Nc5(yuck) and tactics against f7...then I realized the Nf5 check at e7 leaves the black king few squares. Then I remembered a mate of Ne7+ Kh8 Ne5xf7 mate. That's when I realized Nxe5 wins regardless.

Tactical combinations are the life blood of chess.

Thanks to Chessgames.com for finding this Beautiful miniature.

Feb-11-14
Premium Chessgames Member
  kevin86: I like this one-a subtle queen sac on Tuesday-The main line is mate in two by a rook and knight or two knights, depending upon black's reply to Ne7.
Feb-11-14
Premium Chessgames Member
  gofer: I think this is a little bit more clear-cut than yesterday. Both Ne7+ and Nxd5 look to be winning pretty easily.

29 Ne7+ ...

29 ... Kh8
30 Nxd5 Nd6
31 Qxa7 Rxa7
32 Nc6 Bxc6
33 Nxc6 Raa8/Rad7
34 Nxd8 ...

29 ... Kf8
30 Nxd5 Nf6/Nd6
31 Qxa7 Rxa7
32 N7c6 Bxc6
33 Nxc6 Raa8/Rad7
34 Nxd8 ...

So, as long as black doesn't fall for the queen sacrifice, white will simply be an exchange and a passed-pawn up...

~~~

Hmmmm...

Feb-11-14  BOSTER: Looking at the POTD I clearly see the picture where the great Petrosian being lost in reverie, looking at the undefended pawn in the centre , said:" I would take this pawn."
Feb-11-14
Premium Chessgames Member
  Tiggler: <mel gibson>:<Notice the best move is Q-g5 which is not the solution in the puzzle.>

If the puzzle were: guess what white played, then Qg5 would not be the solution. But if the puzzle is find a sure win, then it is a solution, at least.

And one does not need to consider another move after finding one that wins easily.

Feb-11-14
Premium Chessgames Member
  morfishine: <Tiggler> Good point, but thats the benefit: When a position is so weak that practically anything wins, then that encourages imagination
Feb-11-14
Premium Chessgames Member
  chrisowen: Valve for one dump e5 clutch every free wheel to d3,

fed efface off aid free dead knight see e5 first capture I'm afraid black got stuck a hand pawn d5 under foot cobble c7 gives white a large plus should have g5 instead accost knight dip in d3 at deem e5.

I lap e5 knight queen aiding to free falls it down in c7 abetting line d5 provokes the mistake in blow g5 a cob gg he,

genaral one together bind g5 in bag be enough if,

ive got this correct knight dug e5 cuffed a link in beck and call it is ok c7 I bad in bet knight d3 a7 queen craving room at fluffs c7 find g5 duffed him up pet I cad g8 bemoans lack of room infer I jostle at job in hand look long aka co-inside at bind e5.

Lable c7 in back bone of contention dangled good e5 being ado to sad knight cedes in go round the houses a pew in d3 affable knight came to his rescue believe it is dead in the water devious again sat dip for cervix c7 allows a sacrifice to quench his first caged a7 flight basic call I has a bash I ace to bend back e5 line to method c7 it brave in bowing been freed see changes have delve a curious combo in facts over cutoff c7 queen accumulates in degrees a win racking g8 up miles cable wire bus in crab d5 cranks up a bullseye to bind banging in free dutifuls the queen a gift up,

horse ne7 liege see through g8 big as got knight if any fatoff glass ceilings a fetch evermore it's gone over under cage in a7 ram e3 on shape up e3 oh I see the batch in dangle chief e7 gg ogle free queen counterparts informative a light lambast,

grasp the backs to at e5 pea shoot knight edict it ok quell a7 in court about inoof see judge offer up alledge single a mind freeze g8 bull e5 rush in read fanfare stuck in a quagmire side long feint rook f1 eyes f7 if time to bone pick over a leg e5 leave ledged in faith hinge swings the balance in,

his fane devored free door e5 line gig gain to reticence 29.Nxe5 Qxe3 30.Ne7+ mate in twose crab backings bent f5 a knight frame bend off fend in sight able f5 mission select knight see one green in jail the sets e5 coffin gauge the queen point ok ceedences 29...Bc8 in elevates hoof over cattle prod in black b7 ignoble to ascent in facts moot as manic in feckled chains evermore ad mountains to climb encircles at d4 wins a rook by colt 30.Nd4 good to go to ground 30...Nd6 or 30...Rd7 rustle dip offer roaming free success eg ment no quarter given.

Evermore bus tore ignoble mission select in be a good while knight dont fret bag a slot in the sun a hand in pocket see a point can in effect b7 a queen used up ride a horse of coarsed rich vein of form e5.

Pining back amazing to see f5 go all the wind up lick at e3 glossed over tickle 7a mule in fable give stave off he bag general in e3 king becomes to fend off f8 at each in doors again blacks crew came loose after c7 ko in use queen agreed thin picking esconce 30.Kf8 Rxf7#.

Feb-11-14  raycardenas: What if Black plays Bc8?
Feb-11-14  raycardenas: Sorry, first time poster. What if Black plays 29.....Bc8? It seems to cover the f7 square.
Feb-11-14  Cheapo by the Dozen: <raycardenas>,

After 29 ... Bc8, White goes straight to the c6 knight fork.

That's the initial payoff against a variety of Black tries -- White snags the e-pawn and also gains the exchange with a fork at c6.

Feb-11-14  PJs Studio: No, black is mated regardless. After 29...Bc8: 30.Ne7+ still wins instantly. If 29...Kf8 Rxf7 mate. If 29...Kh8 then Nxf7mate
Feb-11-14
Premium Chessgames Member
  john barleycorn: <Feb-11-14 PJs Studio: No, black is mated regardless. After 29...Bc8: 30.Ne7+ still wins instantly. If 29...Kf8 Rxf7 mate. If 29...Kh8 then Nxf7mate> ?? 30. Qxe7
Feb-11-14  raycardenas: Cheapo, thanks for the help. PJs, after 30.Ne7+, QxNe7. White still has the c6 fork like Cheapo shows but Black gets two pieces for the rook and pawn instead of one. I look forward to getting help from all of you.
Feb-11-14  Granny O Doul: Since no one seems to have said it yet (except perhaps in the novel-length post I'm afraid I couldn't psych myself to read), the Nf5 defends the Qe3, so there is not even an apparent queen sac involved. Ne5, whatever else it does, captures an unprotected black pawn.
Feb-11-14
Premium Chessgames Member
  morfishine: <PJsStudio> Read the previous posts, <29...Bc8> is inadequate, but not for the reason you posted. The problem is: 29.Nxe5 <29...Bc8> 30.Qxa7 Rxa7 31.Nc6 Rad7 32.Nxd8 Rxd8 33.Rxc8 Rxc8 4.Ne7+Kf8 35.Nxc8 and White is up a Rook
Feb-11-14  devere: While 29.Nxe5 certainly wins, there is another rather pretty line that also works:

29.Qg5 f6 30.Rc7


click for larger view

30...Kh8 31.Nxe5 Bxd5 32.Ng6+ hxg6 33.Qh4+ Kg8 34.Ne7+ Kf7 35.Nxd5+ Nxc7 36.Rxf6+


click for larger view

Feb-11-14  devere: <morfishine: <PJsStudio> Read the previous posts, <29...Bc8> is inadequate, but not for the reason you posted. The problem is: 29.Nxe5 <29...Bc8> 30.Qxa7 Rxa7 31.Nc6 Rad7 32.Nxd8 Rxd8 33.Rxc8 Rxc8 4.Ne7+Kf8 35.Nxc8 and White is up a Rook>

Black has the improvement 31...Bxf5, but after 32.Rxf5 White still has a winning advantage.

Feb-12-14  PJs Studio: Ooops. I posted and never thought to look more carefully. Easily seen over the board, but...much harder on an iPhone.

In my defense, losing a whole rook or getting mated = same difference.

Feb-13-14  PJs Studio: To make up for my incredible oversight I will give the best responses after 29.Nxe5!

29... f6 30. Qa3 Nd6 31. Ne7+ Kf8 32. Qh3 Bxd5 33. Nxd5 Nxe4 34. Rc7 Qxc7 35. Nxc7 Ng5 36. Ne6+ Nxe6 37. Qxe6 Ra7 38. Nc6

Also! After 29...Bc8 (which is a lot better than I first thought) we missed 31. Nh6+!! putting the black king on a dead run. 31...gxh6 32. Rg1+ (Kh8? 33. Qg3 Bg4 34. Qxg4 Nf6 35. Qg7#) 32...Ng7 33. Rxg7+ Kxg7 34. Rg1+ Kf8 35. Qxh6+ Ke7 36. Nc6+ Kd7 37. Nxa7 Rxa7 38. e5 Kc7 39. Rc1+ Kd7 40. Qxh7 Ke7 41. Qh4+ Ke8 42. Qh8+ Kd7 43. Qh3+ Ke8 44. Rxc8 Rd7 45. d6 Ra7 46. e6 fxe6 47. Qxe6+ Kf8 48. Qf6+ Kg8 49. Qg6+ Kf8 50. Rxd8#

Best I can do.

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