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Alexey Shirov vs Manuel Leon Hoyos
World Cup (2011), Khanty-Mansiysk RUS, rd 1, Aug-28
Sicilian Defense: Old Sicilian. Open (B32)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Given 13 times; par: 52 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Sep-02-11  LIFE Master AJ: <Patriot> "Pin and win" said Reinfeld.

I recently played a TON of games - here, in the playing site vs. the computer. (Literally hundreds of games, all three minute, NO increment!)

It was a cruel and bitter reminder of how effective the simple stuff can be, miss one (relatively simple) shot ... and you are dead. (Also - lost a ton of games on time.)

I have a suggestion for you, if you are open to it. Get the book, "1001 Combinations," by Reinfeld and work your way through that. [Be sure to follow the procedure outlined on my "Training Page." (http://www.ajschess.com/lifemastera...) Read the whole page, but especially follow training tip #1 religiously.]

If you do this, in a year - I can promise you - you will be a different player.

Sep-02-11  Patriot: <LIFE Master AJ> Thanks for the advice!

Does the book contain very easy tactics similar to Bain's "Chess Tactics for Students", which I've gone through several times? I've done about 85,000 tactics on the "Chess Tactics Server" and gained a lot of rating points but seem to be at a rating ceiling for that site. This made me think there may be a better approach to studying tactics. I may have to find that book and apply your tips.

I also have Lazlo Polgar's huge chess book (hard cover), with thousands of mate in one's, two's, etc. After solving about 400 problems in about 1 hour, I got bored and it's been on the shelf ever since.

Sep-02-11  sfm: The exercise today is to find plausible moves that do not win.
Sep-02-11  sevenseaman: <al wazir> Yes 27. Qh6 wins. There is a plethora of candidates in today's puzzle I later found that these deserved more analysis.

In this particular case 28. Qxg6+ was a bit of a surprise for me. Some how I carried on thinking g6 was guarded by the N (oversight); but that was when the N was at e5. Thanks.

Sep-02-11
Premium Chessgames Member
  chrisowen: Sad demise it in for Manual but plug b3 and white looks to have reggae it all sown up.

A5 gain space bg4 flush I mouth qc7?

Cleric grab sac strategic bind knight spot c5 big dilemma rocks in the end spark ova light lipper.

Why to gxf rubble b7 never got going AS BAT!

Sep-02-11
Premium Chessgames Member
  FSR: 27.Qh6! is murderous:

27...fxg4 28.Qxg6+ Kh8 29.Rf7

27...Nf8 28.Bxf5 gxf5 29.Rxf5 (intending Rg5+) Nh7 30.Qg6+ Kh8 31.Rf7

27...Kf7 28.Qh7+ Kf6 (28...Kf8 29.Qxg6) 29.Bxf5

27...Ne5 28.Rxe5 dxe5 29.Qxg6+ Kh8 30.Rf7

Sep-02-11  Memethecat: what a load of rubbish! there is no straitforward mating or game winning sequence here. The only way for the "answer" to work is if a massive blunder ie: < 27...gxf5??> is played. <27Bxf5> is best, but if black plays correctly mate is still 21 half moves away. <27...Nf6> & an oppertune <...e5> or <...e6> refute most of the above, its whites game but if anybody managed to see this through to the end without the help of a computer they should'nt be wasting there time with us mere mortals. disapointing POTD.
Sep-02-11  dark.horse: 31.Rf1 is sweet!!
Sep-02-11  BOSTER: <Calar> <but where did Hoyos go wrong in this game?> After 9...Nxd4 10.Bxd4 black lost the control of the centre. 12.Nd7-is mistake ,because after 13.Bxg7 Kxg7 "f6" and "h6" are weak. To trade the bishop g7 is not a good idea. If you look at the position after16...Rfd8,you can see all! Black forces are on the queen's side and only black king on the other side of the board. This is a wrong strategy!
24...f6 -is another mistake. Mabe such easy win played a spiteful trick on Shirov. For POTD I'd prefer 27.Qh6.
Sep-02-11  Patriot: <Memethecat> I'm not sure what you are expecting. If black refuses the bishop then he's at least down a pawn for nothing (some puzzles involve winning only a pawn).

<<27Bxf5> is best, but if black plays correctly mate is still 21 half moves away.> Mate isn't always the goal. It's enough most of the time to see there is a winning material advantage. For example, many tactics problems involve a knight fork winning the exchange and they stop there.

The only critical variation is 27...gxf5. The nice thing is that if you want to practice visualization you can always consider declining the sacrifice to see what may happen. But declining any sacrifice isn't necessary to calculate unless the opponent has a dangerous reply or potential draw for example.

Sep-02-11  morfishine: <LIFE Master AJ> I'm lucky you recommended that book "1001 combinations" by Reinfeld for <Patriot>. Thats the book I wanted to get but had forgotten the title (and sadly, the author too, but I knew it had the #1001 or 1000).
Sep-02-11  naruto00122: I was playing online chess few minutes ago, and I spotted an awesome move :)


click for larger view

White to move

The full game (warning, puzzle spoiler):
1.d4 d5 2.Nf3 f6 3.e3 a6 4.Be2 Nc6 5.O-O h6 6.c4 Bf5 7.Nc3 Nb4 8.a3 Nc6 9.cxd5 Na7 10.e4 Bg6 11.e5 Qd7 12.e6 Qd6 13.Nh4 Bh7 14.Bd3 O-O-O 15.Ng6 Bxg6 16.Bxg6 h5 17.g3 h4 18.Bf4 Qb6 19.Qc2 Nb5 20.Na4 Qa7 21.Bxc7 Nxc7 22.Rac1 b5 23.Nc5 Kb8 24.Nd7+ Kc8 25.d6 exd6 26.Qxc7+ Qxc7 27.Rxc7+ Kxc7 28.Rc1+ Kb7 29.Be4+

It is too awesome move, that I wanted to share with you guys, hope you like it as much as I do

Sep-02-11  jacopovit: Also 27.Rxf5 is winning
Sep-02-11  dzechiel: <naruto00122> As a premium member, you should enable your personal forum. I went to your personal page to congratulate you on your pretty combination, but your forum has not been enabled.

This goes for other premium members who have not taken the time to enable their personal forums. Do it, this is where users prefer to leave you personal notes.

Sep-02-11  LIFE Master AJ: <<Sep-02-11 Patriot: <LIFE Master AJ> Thanks for the advice! Does the book contain very easy tactics similar to Bain's "Chess Tactics for Students", which I've gone through several times? I've done about 85,000 tactics on the "Chess Tactics Server" and gained a lot of rating points but seem to be at a rating ceiling for that site. This made me think there may be a better approach to studying tactics. I may have to find that book and apply your tips.

I also have Lazlo Polgar's huge chess book (hard cover), with thousands of mate in one's, two's, etc. After solving about 400 problems in about 1 hour, I got bored and it's been on the shelf ever since.>>

Varies. From easy all the way to VERY hard! AND - if you Fritz them - you will probably even find a few improvements along the way. Enjoy! (I am sure it will make you a better player.)

Sep-02-11  LIFE Master AJ: Started on this today (annotate) ... will finish Tuesday or Wednesday. (5:19 PM)

About to depart for the tournament, I hope the rain is not extremely severe.

Sep-02-11
Premium Chessgames Member
  FSR: <naruto00122> Very nice! And, for me at least, surprisingly hard to visualize.
Sep-02-11
Premium Chessgames Member
  FSR: Nice game! Where did Black go wrong?
Sep-02-11  abuzic: Both <27.Re6!> and <27.Bxf5!> lead to same position after:

27.Re6 Nf6 28.Bxf5;

27.Bxf5 Nf6 28.Re6;

then: 28...Kg7 29.Qg3 Rg8 30.Qxg6+ Kf8 31.Rxf6+ exf6 32.Qxf6+ Qf7 33.Qxd6+ Kg7 34.Rf3 Qxf5 35.Rxf5 Rc6 36.Rg5+ Kh8 37.Rh5+ Kg7 38.Qe7+ Kg6 39.Qh7+ Kf6 40.Rf5#

In fact <27.?> is mate in 14 moves with 2 solutions: 27.Re6 and 27.Bxf5

Sep-02-11  sevenseaman: Wonderful <naruto00122>. Your 'awesome' move is the B sac at <21. Bxc7>. You couldn't have done it without seeing the whole combination that inspires the sac. The air felt charged with a possibility of flux at c7. Perhaps the only break you needed from Black was <22...b5>.

May be <29. Be4+> could have been a pleasant surprise to you. I am happy that I saw <25. d6>. However this is a stage where the sequence of moves has already crystallized in one's head.

Excellent! You'll rightly cherish this show.

Sep-02-11  abuzic: Black went wrong with
- <23...Qc7> this was the time for 23...f5, before white plays Q to h3.

- <24...f6> 24...g5 or 24...Ne5 are much better.

After 26.Qh3 white has very strong position threatening to win the N, pinning the c R, may play Qh6 and has mating threats.

and black blundered with <26...f5>: now this is late, 26...Nf8 prevents direct threats.

After 26...f5 white mates in 14 moves starting with either 27.Re5 or 27.Bxf5.

Sep-02-11  sevenseaman: <al wazir> your analysis of the line after <27. Re6 Nf6> is very interesting.
Sep-02-11  abuzic: <27.Re6 Nf6 28.Bxf5> or <27.Bxf5 Nf6 28.Re6>

28...gxf5 29.Rxf5 (29.Qxf5 Rf8 gets rid of mating threats) Rf8 30.Rg5+ Kf7 31.Rxf6+ Ke8 32.Rxf8+ Kxf8 33.Qf5+ Ke8 34.Rg8#.(also 30.Qh6 Rfd8 31.Rg5+ Kf7 32.Rxf6+ exf6 [32...Ke8 33.Rf8+ Kd7 34.Qe6#] 33.Rg7+ Ke8 or Kf8 34.Qh8#.

Sep-02-11  ColeTrane: its way better to take w/the bishop than the rook. A very similar postiion came up recently in a blackmar-deimer gambit game of mine. Save the stronger pieces, usually, works best
Sep-02-11  abuzic: <abuzic: Black went wrong with ........ After 26...f5 white mates in 14 moves starting "with either <27.Re5> or 27.Bxf5.">

Must correct: "with either 27.Re6 or 27.Bxf5."

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