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|Aug-16-12|| ||LIFE Master AJ: 35...RxB/e3! and 36...Rg2+; with a fork of the K+Q. (White cannot escape.)|
|Aug-16-12|| ||DavidD: This week's puzzle-positions show the complexity of chess decision making.|
In today's position, the classic thinking issue is: examine every check and capture in the position. While ...R2xe3 won't work, ...R8xe3 does. Clearly when White was visualizing this position a few moves before, he saw the first candidate but missed the second.
Yesterday's puzzle was an example of: Who is the stronger chess thinker--the one who sees the mate in 6 (he saw "further") or the one who sees the mate in 3 (he saw "better")? Both Rg8+ and Qg8+ won, however, some found the first candidate simplier to visualize and calculate, some the second candidate.
Tuesday's puzzle also had two candidate moves, but the issue was different. While Rxg6+ won, it lead to a messy position that required lots of calculation. (However, most strong players would consider Rxg6+ first as it is the most forcing move, and if it did win, no need to calculate anything else.) The game move, e5, was a much more efficient win. The move was also of a completely different tactical theme--line blocking of the Black Queen's defense of the f6-square. Anyone who concluded that Rxg6+ won should also examine why they didn't see e5. They may not be seeing interference tactical themes in their move selection process.
The choosing of a chess move is a complex process. Whether we use a structured approach or a messy approach, all of the puzzles this week illustrate ideas we should add to our chess decision making.
|Aug-16-12|| ||Tigercock: Got it in about 10 sec.|
|Aug-16-12|| ||chrisowen: Hi everyone a rook chim ore affect he reprimand just rooke3 |
leave knight oh drome g4 aim it her d1s good set he trap for
height rook glesson bargain rookxe3 provides have thorn
the disciple thorax side after d1, mage e3 gets rid jack queen is
out hunger spat give knight it a nearly late surge
force fork knight gulf extract our cropper d1 method for
e3 retains the crown for length picket fence off he
marches nutmeg e3 ko rook g2 box a kit sidestep
see white defence call it of the wild dongle it fancy anger
coins 35...r8xe3 36.fxe3 rg2+ king has lip h1 or dervish queen
fall time theory it ok dread rumble it her d1 muster kip e3
and dolce vita nab rook g2 patrol cheerio ja!
|Aug-16-12|| ||Everyone: Hi <chrisowen>
2 ask I wanted you always
your mother a dyslexis robot was?
|Aug-16-12|| ||The Last Straw: Got it in 1 min.|
|Aug-16-12|| ||RMKvdS: <chrisowen>'s posts are hard toe decipher, yet looking at the moves he describes, this guy knows his chess. As a matter of fact, I believe this guy would destroy me at the board. He has this mystic aura around him..... He makes CG a more fun place to waste some time!|
|Aug-16-12|| ||LoveThatJoker: <DavidD> Excellent post!|
|Aug-16-12|| ||TheBish: Uhlmann vs L Espig, 1978|
Black to play (35...?) "Medium"
I believe I've seen this before, but not too tough in any event.
35...R8xe3! 36. fxe3
Otherwise Black just wins on material.
36...Rg2+! 37. Kh1
Or 37. Kxg2 Nxe3+ forks king and queen, as does 37. Kf1 Nxe3+.
37...Nf2+ 38. Kxg2 Nxd1 and the rest is easy.
|Aug-16-12|| ||Whitehat1963: Brilliant finish! Had me completely in the dark, even though I was looking the whole time for a knight fork. Couldn't find it.|
|Aug-16-12|| ||PaulLovric: a beautiful finish|
|Aug-16-12|| ||Abdel Irada: <DavidD> has made an observation from which we could all learn something to our benefit. |
Human diversity being what it is, it comes as no surprise that we all think and see the board differently. But chess strength derives in no small part from the ability to synthesize as many different "board views" as possible, improving our chances of seeing all the potential in a given position.
This is part of what makes CG.com valuable. By first finding our own solutions to puzzles, or alternative lines in other games that we may examine, and then comparing notes with other players, we can add other perspectives to our own, yielding the proverbial whole that is greater than the sum of its parts.
Concurrently, we must learn the art of mutual respect. If there are multiple paths to victory, none of them is "wrong," although some may be faster or more efficient than others; all of them are worth noting and adding to our decision-making process.
|Aug-16-12|| ||chrisowen: <Everyone> Having a good time are we? I'm putting you on my ignore list, for that!|
|Aug-16-12|| ||sevenseaman: <Abdel Irada> Thanks for that note on <David2009>. He is a much respected and loved poster for most of us here, may be all. Insightful! I have received valuable help from him unstintingly.|
|Aug-16-12|| ||Patriot: <LTJ> I agree--That was a nice post by <DavidD>!|
|Aug-16-12|| ||QueenMe: Missed this one completely. After examining why, it's apparant that I didn't consider the possibility of sacrificing BOTH rooks to set up the knight fork.|
|Aug-16-12|| ||vvv: <chrisowen: <Everyone> Having a good time are we? I'm putting you on my ignore list, for that!>|
Did <chrisowen> just use almost-normal English sentence structure?
|Aug-16-12|| ||sevenseaman: I liked <DavidD>'s post though I may have confused the handle with the other David.|
|Aug-16-12|| ||LoveThatJoker: <Patriot> Thank you! He definitely got it spot on!|
|Aug-17-12|| ||Overgod: Yep, eventually found the double rook sac, (took me all in all about 40 minutes)...|
Usually I am good with this stuff. I can solve insane difficulty puzzles in a mere 2 or 3 minutes. But this one: I don't know, perhaps it's just lack of familiarity. If you simply glance at the board for about 2 or 3 minutes, I think most people would love playing white. The rook is trapped and the Knight skewered, and the white queen seems to be in a lovely spot.
But lo and behold, white is lost by force. Quite a difficult puzzle I think. Certainly a 4 star puzzle (rather than just 3).
|Aug-17-12|| ||Overgod: Actually, what I meant was: Should be a 3 star puzzle, rather than 2.5 stars.|
I would grade it difficult, rather than medium...
|Aug-17-12|| ||Abdel Irada: <"...the white queen seems to be in a lovely spot.">|
It is in a lovely spot ... from Black's point of view. Of the available squares, only on d1 is it subject to all three possible forks.
|Aug-18-12|| ||Overgod: Yep, that is correct, which is why i emphasized the word "seems".|
It seems to be in a lovely spot, because from white's point of view, only on that square, does it attack both rook, knight and also attacks the back rank rook indirectly...
But, alas for white, appearances can be very deceiving.
I can assure you, in 9 out of 10 blitz/bullet games, even between strong players, (not GMs), white would win this position.
|Aug-18-12|| ||Abdel Irada: Not if they've solved this puzzle. ;-)
(Although, human memory being what it is....)
|Apr-29-13|| ||Everett: For those who haven't played this game through, it will be a treat to do so. Black's 16th, 21st, and 32nd are each worth a look.|
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