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Andrey Stukopin vs Jorge Viterbo Ferreira
WY U-16 Olympiad (2010), Burdur TUR, rd 6, Nov-30
Sicilian Defense: Najdorf Variation. English Attack (B90)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Mar-20-13  scormus: Continuing the week's theme. 27 Qxg7+ (with f6+ and probbly Bh6 to) followimmediately comes immediately to mind.

OMG, Najdorf English Attack. I'm playing that with B in a current internet game. I'd better make sure I dont suffer the same fate ;)

Mar-20-13
Premium Chessgames Member
  whiteshark: Always and inevitably, everyone underestimates the number of stupid individuals in circulation.

;D

Mar-20-13  vinidivici: Good puzzle for Wednesday.
Mar-20-13
Premium Chessgames Member
  morfishine: White's advanced pawn on h7 gives him the opportunity for a crushing sacrifice

<27.Qxg7+> Not only eliminates the King's bodyguard, but clears f6 for another pestiferous pawn (White's monster pawn at f6 justifies the Q-B trade)

<27...Kxg7 28.f6+ Kh8> Forced; if 28...Kf8 29.Bh6# <29.Bh6>

The threat Bg7+ is too much for Black to defend: 29...Rg8 30.hxg8+ Rxg8 31.Bg7# Or 30...Kxg8 31.Bg7 followed by 32.Rh8#

Mar-20-13  kellmano: White has such a lovely position as Black's pieces are so far away.

Does the quiet 27. Bg5 work?

Mar-20-13  WiseWizard: Why a quiet move when you can force the win?
Mar-20-13
Premium Chessgames Member
  Oxspawn: I like the look of 27. Bg5 (which prevents . Bxf6) and I see the game going 27. Bg5 Rg8
28. Qxg7 Rxg7
29. Bf6(prevents Rxh7) R(c8)g8
Run out of ideas and time .
30. hxg8+ Kxg8 does not look winning for white

30. Bxg7 Rxg7
31. f6 Rxh7 leaves white stuck and lost queen and bishop for rook and bishop

30. Rf4 fails after g5 (preventing Rh4)

30. fxg fxg
31. Bxg7+ Qxg7 (not Rxg7 after which I think Rf8 wins) 32. hxg8 (momentarily queens and checks) Kxh8
white has two rooks, bishop, and pawn for queen, bishop and two pawns. Not a good deal.

I can't hold all this in my head - not sure if any of the above makes sense but feel I was almost on track. Going to play through game, in the hope it was not "QxB and that's it!"

Mar-20-13
Premium Chessgames Member
  Oxspawn: O shucks. I'll leave my post up as a monument to valuting ambition and foolishness.
Mar-20-13  James D Flynn: White is a pawn up but more importantly the Black Ks position is very precarious. 27.Qxg7+ Kxg7 28.f6+ Kh8(not Kf8 29.h8=Q#)29.Bh6 Kxh7(if Rg8 30.hxg8=Q+ Kxg8(if Rxg8 31.Bg7#) 31.Bg7(threat Rh8# to which Black has no answer)30.Bg7+ Kg8 31.Rh8#.
Mar-20-13  zb2cr: 27. Qxg7 is the obvious start here. Black is forced to play 27. ... Kxg7. After 28. f6+, Kh8 (...Kf8; 29. h8#); 29. Bh6! is the move that makes the combination go.

Now the threat is 30. Bg7#. Black has only two defensive tries:

a. 30. ... Kxh7; 31. Bg7+, Kg8; 32. Rh8#.

b. 30. ... Rg8; 31. hxg8=Q+. Now Black's final days have clearly arrived. If 31. ... Kxg8; 32. Bg7 with mate next move. At first sight, 31. ... Rxg8 looks more promising, as the Rook protects a check on g7--but 32. Bg7# is mate anyway, due to the double check! This variation nearly caused me to abandon the Queen sacrifice, as my board visualization had grown vary shaky, but I did ion fact manage to visualize the double check and so said to myself that all was well.

Mar-20-13
Premium Chessgames Member
  PawnSac: <James D Flynn: White is a pawn up but more importantly the Black Ks position is very precarious.>

its funny, but i did not even notice pawn count. It never entered my mind. Even now after you mention it, i haven't bothered. As soon as i looked at the position on the front page i instantly considered the queen sac, and started visualizing the mate net. I never counted material. I guess that goes to prove that when the king has become sufficiently exposed, and there are available lines of attack, the only material that matters is that which is sufficient to enforce mate. All else is just window dressing.

Therein is the secret to successful attack. <Continual preoccupation with material draws one's focus away from the intangible elements.. space, time, force, and lines of attack.> And i don't mean this in any way as a criticism of your comment. It's just an observation. Decades ago i played to win material. But in more recent years i've mainly won material because it was convenient; the opportunity arises as a consequence of the superior position. If it works into the general plan for the improvement of my game, i'll take it. But if I see an alternative that yields a more powerful factor, or if taking will detract from the winning plan, or weaken my superiority, i decline it. All other factors being equal, extra material is promising, but when i look back at many of my games of earlier years I discovered that, even when i ultimately won the game, grabbing material made the game much more difficult, when there was a more efficient path to victory with a more comfortable game. So as i play, i'm generally aware of material considerations, but the path of the game follows the immaterial. But what blows my mind is to imagine how someone like Tal thought. To be able to perceive the board like he did would be incredible. I mean, some of his combinations so bizarre. The guys mind was on another plane of existence! lol

Mar-20-13  snakebyt: <James D Flynn: White is a pawn up.> <<PawnSac> i did not even notice pawn count. It never entered my mind. > Doubtful one pawn could save black here. I rarely count either. Superfluous! But nice analysis Flynn.

I did QxB KxQ Bh6 then thought about the several options. Quickest and the winner - I see now - is pf6+ This solution was obvious to me.

Mar-20-13  vinidivici: <Bartimaeus><This was a pretty tough one for a Wednesday>

I notice that these days, i dont know maybe since 3 or 4 months ago or more, that the quality of the chessgames.com puzzles are higher than, say, 1 year ago.

I see the sharp increase from the tuesday to wednesday puzzles or wednesday to thursday puzzles these days. In the past, the obvious sharp increases usually happen from thursday to friday or friday to saturday.

So for (i believe) most of the visitors nowadays, they have to be begin to sweat a little bit on Wednesday whereas in the past we still had a kids play on Wednesday.

<stst> <this looks a Monday/Tuesday one for ... many!!>

lol, for someone who is used/regular to this site, they wouldnt say this puzzle is for Monday. Because they know how the Monday puzzles are. I am regular to this site and this clearly not a Monday puzzles and very very hardly to Tuesday puzzles.

Mar-20-13
Premium Chessgames Member
  kevin86: I saw the sac at g7,but to me it gets a bit muddy afterward.
Mar-20-13  MountainMatt: Looking at this at 8 this morning, half an hour after waking up, I couldn't begin to see the winning line. Now, 3 1/2 hours and 2 cups of coffee later, it is quite obvious that the winner is 27. Qxg7 Kxg7 28 f6+ Kh8 29. Bh6, and whatever black does next leads to quick mate. Makes me wonder what time of day the average chess tournament starts. Anything before 10, preferably 11 am is cruel and unusual.
Mar-20-13  YetAnotherAmateur: This is really a cute one, which I managed to get quickly enough. The variation where black lasts the longest:

27. Qxg7+ Kxg7 (forced)
28. f6+ Kh8 (Kf8 29. h8=R#)
29. Bh6 Rg8 (any other move falls to 30. Bg7#)
30. hxg8=Q+ Kxg8 (Rxg8 31. Bg7#)
31. Bg7 any move
32. Rh8#

Mar-20-13
Premium Chessgames Member
  chrisowen: At flinger in steeple 27.Qxg7+ it hot bind extras put now in every been ok gauging 27...kxg7 engage off re you in f6 lubber etc energetic, in thethroat 28.f6+ at l0 re in go e3 he ad minister 28.Kh8 heffalump bone at clinkings 29.bh6 in brittle black defence ogle a wave in crestings 29...rg8 at enact ok also yah in doot doot doot rucking too 30.hxg8 anything gives for goofball it anxc2 or betcha again vilificate rook across in g8 seals his tomb g5 ellucidate in bottle necking h8 as tendered in g8 queens oh op on 30...kxg8 31.bg7 it a nest h6 to g7 le h3 in at see him 32.rh8 or dervish you in e3 lurch h6 a massive get able wave I see dredging rook he in e8 over g8 welcoming 29...rg8 30.hxg8Q+ interesting op alive no more chef in drought 30...kxg8 at essay it hope at good game thod ugly yin a 31.bg7 look it grim ace in harbours 32.rh8# in go thumper 27.Qxg7+.
Mar-20-13  BOSTER: <PawnSac> <I never counted material>. This is nice to know, but when you loose a game because you had only one pawn less this will changes your mind.
Mar-20-13  Alex56171: Another Queen sacrifice: 27.Qxg7+ Kxg7(sole) 28.f6+(and the king is caged) Kh8 [28...Kf8 29.Bh6#] 29.Bh6 Rg8 [29...Kxh7 30.Bg7+ Kg8 31.Rh8#] 30. hxg8Q+ Kxg8 [30... Rxg8 31.Be3#] 31.Bg7 Nxc2(anyone) 32.Rh8#
Mar-20-13  mistreaver: Wednsday.White to play. Medium/Easy. 27.?
I would try with the obvious move
27 Qxg7 Kxg7
28 f6+! Kh8
29 Lh6! and i think there is no defence:
A) 29...Kxh7
30 Bg7+ Kg8
31 Rh8 mate
B) 29... Rg8
30 hxg8 Kxg8 (Rxg8 Bf8++)
31 Bg7 and there is no defence against Rh8 mate
Time to check
--------------
Wow i forgot to write that on Kf8 Bh6 wins instantly, but i think that even without that omission i can take full point for today, making it 3/3 this week.
Mar-20-13  cjgone: Wow, this is a great combination.
Mar-22-13  vinidivici: <PawnSac> <I never counted material>

So, now you count it!!!

And, one again, dont bother to count materials, it just for a real pro player (master/GM/expert) or for a seasoned player.

And i can understand for a CASUAL PLAYER, counting materials in chess just a disturbance.

Mar-22-13  Abdel Irada: <BOSTER>, <vinidivici>: Sarcasm aside, I understand what <PawnSac> meant: *In this case*, he didn't count the pawns because intuition told him they weren't relevant to the outcome; White's queen sacrifice was so clearly decisive that there was simply no reason to bother.

Now, had he tested the sacrifice and found it wanting, and had to fall back on more prosaic play, I daresay he would then have counted pawns, looked for weak squares, and generally gone through the complete positional orientation that ordinary situations demand.

Of course, it is possible that I have misunderstood him, in which case he is welcome to correct me. But that's how *I* read his post.

Mar-22-13  Abdel Irada: <this will changes your mind.>

Kalimera to you, too, Spiro.

And how are Mrs. Durrells, Misses Margos and Masters Larrys, Leslies and Gerrys today?

(Reference: _Birds, Beasts and Relatives_, by Gerald Durrell.)

Mar-06-17  clement41: Nice attack!
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