< Earlier Kibitzing · PAGE 2 OF 3 ·
|Jul-13-10|| ||ashvalkyrie: +, Camelot is "a silly place anyways"|
|Jul-13-10|| ||wordfunph: 37.Nh5 and black has no other move to prevent 38.Qg7#, if 37...gxh5 then 38.Rg1+ Kh8 39.Qg7#|
|Jul-13-10|| ||Patriot: Apparently I tossed Nh5 out too fast and went in circles looking at any forcing or threatening move I could find. Finally I returned to Nh5, seeing ...gxh5 Rg1#.|
I'll have to be more careful next time with those quiescence errors!
|Jul-13-10|| ||randomsac: After Nh5 black can't respond to Qg7# without capturing the with gxh5. That of course opens the g file for Rg1#.|
|Jul-13-10|| ||felixd: It's a lot easier than yesterday...|
|Jul-13-10|| ||YoungEd: It's a long time since I've been able to say this, but...Score one for the YoungEd Express!|
|Jul-13-10|| ||chessgolfer: After struggling with yesterday's puzzle (major brain block) today's solution jumped at me. Nh5 and there is no where to go. gxh5 followed by Rg1# or some inconsequential move followed by Qg7#|
This could have been yesterday's puzzle.
|Jul-13-10|| ||kramputz: < Once: upon a time...> ......Verbal diarrhea .....|
|Jul-13-10|| ||johnlspouge: Tuesday (Easy)
R Vera vs J Becerra-Rivero, 1996 (37.?)
White to play and win.
Material: N+P for B. The Black Kg8 is stalemated, and White has a forcing sequence.
Candidates (37.): Nh5
37.Nh5 (threatening 38.Qg7#)
|Jul-13-10|| ||chrisowen: Aorta blocking red path heart attack suffers in 37.Nh5. Pumping the horse around little like red rum sets up combination inn mixing usage rook g1 with queen check. White is in good spirits after 30.g4 Nf6 it tops off a nice Cuba Libre. In time going back rankled a 30..Bd5?|
|Jul-13-10|| ||Marmot PFL: Much too easy|
|Jul-13-10|| ||YouRang: Almost a no-brainer today. One always starts by looking at the opposing king position, where we see our queen sitting on f6, waiting for some assistance from the troops.|
There are exactly two troops:
Troop #1 is a knight that happens to be ready to attack the mating g7 square via <37.Nh5>. It can (and must) be captured of course by <37...gxh5>, but this opens the g-file.
Troop #2 is a rook that happens to be ready to attack an open file, such as the newly opened g-file, again with mate in view: <38.Rg1#>.
Game over - quite easy.
|Jul-13-10|| ||kevin86: Two Mondays this week?
37 h5-threatens mate,which can only be stopped by-gxh5 38 g1#
|Jul-13-10|| ||SufferingBruin: <Once> http://www.youtube.com/watch?v=Tylv...|
|Jul-13-10|| ||SufferingBruin: Adding, 31. Nf5+ is the move that blew me away. I tend to play too carefully anyway so moving a piece where it can be captured by not one but two pawns is... well, it gives one pause. :)|
|Jul-13-10|| ||JG27Pyth: Everyone thought this was a piece of cake but me apparently... seemed like a good Tuesday to me. Got it, but not instantly.|
|Jul-13-10|| ||TheaN: Tuesday 13 July 2010
Material: White up, + vs
Candidates: Qg7†, <[Nh5]>
It's rather surprising how White can be up a pawn here. There is no compensation for Black whatsoever, and the kill from White is imminent. First I looked at the most aggressive move otb, Qg7†, when I spotted the key move.
<37.Nh5> and Black can only postpone mate on g7. The capture:
<37....gxh5 38.Rg1‡ 1-0> is of course out of the question, not withstanding that Qd4 and Qd1† are more appealing. The first may postpone the longest but is a desperate measure, considering after 37....Qd4 38.Qxd4, the Knight is still immune. In fact, after 38....f6 39.Qc4† Kh8 40.Qc7 it's over. Time to check.
|Jul-13-10|| ||Once: <SufferingBruin> Thanks for the link & glad you enjoyed it today's ramble.|
I certainly agree that 31. Nf5+ is an excellent move. Here is the position just before white played it:
click for larger view
How can we spot 31. Nf5+ from here?
I think a lot has to do with the questions we ask ourselves when we analyse a position.
If we ask the question: "What move should I play here?", our minds will often give us a list of safe-looking moves. We will usually subconsciously filter out any moves which instinctively look wrong or unsafe.
But suppose we did manage to list 31. Nf5+ in our first scan. What question do we ask then? Most folk ask the question "does this work?" And that is okay as questions go, but it is all too easy to take fright at the fact that f5 is twice defended.
Instead of "what should I play?" and "does move X work?", we probably ought to substitute three more powerful questions:
"What do I want to achieve?"
"Which moves achieve what I want?"
And for each of the moves in our candidate list - "How can I make move X work?"
From the diagram, white would really like to shift the black king out of the way so that he can play Qxf6. That answers our first question, at least as an initial hypothesis.
Then our second question leads us to the seemingly impossible 31. Nf5+ as the only move which shifts the Kg7.
Finally our third question makes us persist with 31. Nf5+ instead of giving it a cursory once-over and reject it. There are three variations to consider - king moves is followed by Qxf6; exf5 allows Qxf6 (as in the game) and gxf5 gives us Qg5+ and Qxf6.
It's all about asking the right questions!
<kramputz> You are entitled to your opinion of course. Not everyone will like the stuff I write. So feel free to use the ignore button. I won't be in the least bit offended.
That's it for me for a while. I'm off to catch a ferry for ten days of holiday in France. Have fun, folks, and I'll catch up again around 23 July.
|Jul-13-10|| ||ZUGZWANG67: Only one candidate: 37.Nh5.
37...gxh5 38.Rg1+ mate.
Otherwise nothing can prevent 38.Qg7+ mate.
|Jul-13-10|| ||Ferro: Nh5! 2 minutes|
|Jul-13-10|| ||patzer2: For today's Tuesday puzzle solution, 37. Nh5! is a sham deflection sacrifice which creates a decisive mate threat.|
As <ZUGZWANG67> observes, the futile 37...Qd5 38. Qxd4 is about all that keeps this from being a mate-in-two.
|Jul-13-10|| ||jfshade: Thanks <twice> <once>:|
First for the dramatization, and second for the insight on 31. Nf5+. I found the puzzle easy to solve, but when I played through the game, my reaction to 31. Nf5+ was similar to <Suffering Bruin>'s: how do I "see" a move like that during a game?
Have a great holiday!
|Jul-13-10|| ||lost in space: aaaahhhhh,
a Tuesday. Love it. Sometime even more than a Monday.
37. Nh5! and Black has no defence.
37...gxh5 38. Rg1#
and after all other moves: 38. Qg7#
Nice, easy and sweet
|Jul-13-10|| ||Patriot: <Once>
Thanks again for an interesting storyline and also your insight about asking the right questions.
To see a move like 31.Nf5+, I use the "check, capture, and threat" method for considering candidate moves. But for a move like that to remain on my candidate list I do a "safety test" to determine if the move is safe. If the piece can be captured without a following "check, capture, or threat" then the move is likely unsafe and time shouldn't be wasted analyzing it. As you pointed out, the critical variations stemming from 31...gxf5 and 31...exf5 suggest it is safe and therefore worth considering.
For those that don't think they can spot moves like 31.Nf5+ during a game: All it takes is a good thought process to correct this.
|Jul-13-10|| ||DarthStapler: Got it|
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