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johnlspouge
Member since Aug-25-07 · Last seen Oct-22-14
For detailed instructions on downloading Toga, go to johnlspouge chessforum.

Being a control freak (just ask my kids!), I have moved my profile onto a page I can edit any way I want:

http://spouge.net/html.home/chess/i...

See you there!

>> Click here to see johnlspouge's game collections.

Chessgames.com Full Member

   johnlspouge has kibitzed 4547 times to chessgames   [more...]
   Oct-21-14 Kenneth Rogoff (replies)
 
johnlspouge: < <OhioChessFan> wrote: <jls: I would be interested to know which claims, specifically, you think "untestable". Most scientific claims about the past I know of <are> testable, by requiring consistency from different sources, like carbon dating, DNA sequence ...
 
   Oct-11-14 A S Hagen vs K Szabo, 2012 (replies)
 
johnlspouge: Sometimes, an algorithm helps. After assessing material, I check K safety. Here, the White K is stalemated, so I looked for checks. The threat 24.Bh3 25.Bxg2 then popped out.
 
   Oct-06-14 Keene vs Tarjan, 1975 (replies)
 
johnlspouge: <JG27Pyth>, as wonderfully witty as ever! IMHO, the author of the funniest post ever on this site: Glucksberg vs Najdorf, 1929
 
   Sep-23-14 Louis F Stumpers (replies)
 
johnlspouge: @<Karposian>: you seem to be particularly good at this type of problem. Do you use any unusual solution technique?
 
   Sep-11-14 R A Court vs J R Phillips, 1963 (replies)
 
johnlspouge: Stockfish confirms that 47.Rxe6 (+15) is stronger than 47.Bxe6+ (+4). The threat of discovered check is sometimes stronger than a check.
 
(replies) indicates a reply to the comment.

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 6 OF 9 ·  Later Kibitzing>
Feb-28-10  A.G. Argent: John, thanks for the info about Dave Z. I did not know. I just haven't poppped into the puzzle much lately and consequently am behind in such news. I do hope all is well with him. As for MOON, knowing your affinity for intelligent sci-fi films, I would take all bets that you'd really enjoy it. Just out last year and quickly developed a following. And check out a picture called SUNSHINE, also a pretty interesting science fiction film from just a couple years ago. Fell through the cracks, it did. Quite provocative, I thought. I know Netflix has it, that's how I came upon it, just through one of their recommendations. So thanks for getting back to me. Cheers.
Mar-01-10
Premium Chessgames Member
  agb2002: <johnlspouge: In heavy piece attacks like today, I usually view exhaustive enumeration as a waste of time, because the variations become tiresomely numerous and largely repetitive. On my own, I prefer to sample a few critical variations to establish whether the heavy pieces have enough resources to maintain the attack.>

We swapped roles yesterday, somehow: you attempted an almost exhaustive analysis and I stopped when I started suspecting that black might not have enough forces to deliver mate.

<For those who might doubt that I still have the chops to calculate, however, the foregoing should forestall any suggestions of remedial push-ups.>

If I had any doubts I would have never 'prescribed' you any push-ups.

<Give me 30, <Antonio> ;>} >

Done! (It's important to encourage good habits :)

Mar-02-10
Premium Chessgames Member
  agb2002: <johnlspouge: I enjoyed your response.>

Thank you, John.

<I should have known that there was something wrong with the Sunday puzzle when I saw an abbreviated analysis from <you> ;>) >

After some time reflecting on puzzle solving I concluded that the only valid assumption is that either White or Black moves. Other assumptions (insanely easy, etc.) often turn into red herrings, and they stink.

Actually, I try to solve for both sides, you know, the phrase starting with 'X threatens ...'.

Mar-31-10
Premium Chessgames Member
  agb2002: <johnlspouge: < <agb2002> wrote: [snip] The same game appeared twice in the database (#1084362 and #1084365). CG has deleted the game #1084365 and my original post, that one you refer to. >

Hi, <agb2002>. I posted about your original post. <CG> deleted my reply also.>

My opinion is that CG should simply apply the pertinent action and answer our posts, but not delete them.

<Let's see how many times we can refer to your original post, before they give up ;>) >

Now I've lost the count...

Mar-31-10
Premium Chessgames Member
  agb2002: <johnlspouge: Hi, Antonio. I hope you and your family are well.>

Hi, John. Thank you, I hope the same for you.

<I recently found a beautiful book, "Concrete Mathematics" by Graham, Knuth, and Patashnik. You would probably like it: it has some unusual and very beautiful material. >

Yes, I was fond of this book the first time I saw it, a number of years ago (I own two copies: one at home, the other at the office of an engineering company for which I perform FEM calculations).

The use I give to it is mainly recreational (from time to time I like to play discrete math to flex some problem solving skills or for curiosity), I rarely use it for professional reference.

In any case, it is an excellent recommendation to keep the neurons alive!

Apr-03-10
Premium Chessgames Member
  johnlspouge: Here is another game against the Jester:

1.e2-e4 g7-g6 2.d2-d4 Bf8-g7 3.Ng1-f3 d7-d6 4.c2-c4 Bc8-g4 5.Bc1-e3 c7-c5 6.Nb1-c3 Bg4xf3 7.g2xf3 Qd8-a5 8.Qd1-d2 c5xd4 9.Be3xd4 Bg7xd4 10.Qd2xd4 Ng8-f6 11.Bf1-e2 Nb8-c6 12.Qd4-d2 Qa5-c5 13.Ra1-d1 Nc6-e5 14.b2-b3 Ke8-c8 15.Nc3-d5 Nf6xd5 16.c4xd5 Kc8-b8 17.Rd1-c1 Qc5-a3 18.Ke1-g1 f7-f519.f3-f4 Ne5-d7 20.e4xf5 g6xf521.Be2-d3 Rd8-f8 22.Rf1-e1 Nd7-c5 23.Bd3-b1 Rh8-g8+ 24.Kg1-h1 Rf8-f7 25.Re1-e3 a7-a5 26.Rc1-e1 Rg8-g7 27.Re3-g3 Rg7-g4 28.h2-h3 Rg4-h4 29.Kh1-h2 b7-b6 30.Rg3-g8+ Kb8-c7

The position is a Tuesday-Wednesday level puzzle.


click for larger view

The solution appears at the bottom of the post.

31.Bb1xf5 Kc7-b7 32.Kh2-g3 Rh4-h6 33.Bf5-b1 Kb7-c7 34.f4-f5 Rh6-f6 35.Re1-e3 Nc5-d7 36.Re3-c3+ Kc7-b7 37.Qd2-e2 Qa3-c5 38.Rc3xc5 d6xc539.d5-d6 Rf6xd6 40.Bb1-e4+ Kb7-c7 41.Qe2-a6 Rf7-f8 42.Qa6-b7+ Kc7-d8 43.Rg8xf8+ Nd7xf8 44.Qb7-b8+ Kd8-d7 45.Qb8xf8 Rd6-f6 46.Qf8-b8 h7-h547.Kg3-h4 Rf6-d6 48.Qb8-b7+ Kd7-e8 49.Qb7-b8+ Ke8-d7 50.Kh4xh5 a5-a451.Qb8-b7+ Kd7-e8 52.Be4-d5 c5-c453.Qb7-c8+ Rd6-d8 54.Qc8-c6+ Rd8-d7 55.Bd5-e6 a4-a356.Qc6xd7+ Ke8-f8 57.Kh5-g6 c4-c358.Qd7-d8+ 1/0

<SOLUTION>

31.Bxf5 Rxf5 [else, drop a P, as in the game]

32.Rxe7+ Nd7 33.Qc2+ Qc5 34.Rxd7+ [Qxf5? Qxf2+ 35.Kh1 Rxh3#]

35.Kxd7 Qxf5+ and mate follows.

Apr-27-10  mariocavadarossi: User: johnlspouge goodevening john. I enjoy your comments esp in the insane puzzles. Thanks to you I can follow these puzzles and understand some hidden beauties in these.Do you happen to remember the insane puzzle back in 10th of may 2009?
Apr-29-10
Premium Chessgames Member
  johnlspouge: < <mariocavadarossi> wrote: [snip] Do you happen to remember the insane puzzle back in 10th of may 2009? >

I have the game as

W Wittmann vs A Rodriguez, 1980

but the players as J Ragan vs. P Benko, who played one game in the database

J Ragan vs Benko, 1974

I think I made a mistake in my personal copy of the puzzles. Perhaps <CG> had a duplicate game. I understand why you are asking: <dzechiel> has no kibitz recorded on that day either, so I suspect <CG> wiped the game for the puzzle on May 10, 2009, from its database.

Apr-30-10  mariocavadarossi: <User: johnlspouge; Thank you John!
May-31-10
Premium Chessgames Member
  agb2002: <johnlspouge: < <agb2002> wrote : [snip] "Wir müssen wissen. Wir werden wissen."

Hi, <Antonio>. I thank you for enlightening me.>

And thanks to you for exactly the same!

<Quite in character, Hilbert's epitaph carries to infinite extremes the saying, "If only I knew then, what I know now." :)

>

I'm not sure. "We must know, we will know" seems to give the impression of determination, instead of sadness.

I think Gödel's results made him suffer a lot: the shock was surely proportional to his knowledge and Hilbert was the last man who mastered virtually every branch of mathematics...

Jun-24-10
Premium Chessgames Member
  johnlspouge: Hi, <JohnBoy>. I could not reply last night because my connection to <CG> was sporadic. This is the only way to reply to your kibitz, because you do not have an active forum.

http://home.fnal.gov/~annis/chess/ suggests that Toga should work for Macs. Give it a try, and let me know the result.

Jul-22-10
Premium Chessgames Member
  agb2002: <johnlspouge: ...

I am going to take a sabbatical from chess puzzles for a while.>

I took a 26-year sabbatical when I was 18 without noticing that chess was always much better than coffee.

Hope yours won't last that long...

Anyway, take care, enjoy your time and see you here or in a given parallel hyperspace!

Jul-24-10  CHESSTTCAMPS: Welcome back, John!
Jul-27-10  CHESSTTCAMPS: <Hi, Phil.

Congratulations on finding the correct candidate yesterday. I can assure you that the POTD is much less stressful if you don't feel you <have> to post :)

All the best,
John>

Thanks. I found the right candidate on Sunday, but I butchered the rest of the solution. Nonetheless, I enjoy *trying* to work through the tough problems more than I worry about being wrong, so stress doesn't come into it too much.

Regards,
Phil

Sep-05-10
Premium Chessgames Member
  Once: <john> Loved your KISS pandas today. After reading through the depressing world vs Pogonina stuff, it was just what I needed to cheer me up.
Sep-15-10  CHESSTTCAMPS: Hi John,

It's great to hear from you and see your posts again on the POTD page.

<Having noted your post during the working day, I was about to exclaim: "Cripes, Phil, don't you go to work?!?">

I paid my dues and then some when I was in IT Consulting, but I can't rule out doing it again sometime.

<Having read your bio (again), I am reminded, however, that you are employed in a manner constructive to society at large, at a job whose hours are even more flexible hours than mine. I assure you, few could dare make that claim.>

I'd like to think it's constructive to promote the games of chess and table tennis (although that's only part of what I do), but it's a hard sell with all the attention that parents and kids give to soccer and other mainstream sports.

Of course maybe it's constructive to *not* be on the job market in today's economy!

<I enjoyed interacting with you today, even indirectly. It's a pleasure, as always, to share a hive mind with sharp guys like <agb2002>, <TheaN>, and you, to name just a few :)>

Thanks and likewise. Although I will be staying off the site myself next week, I look forward to staying in contact.

Sep-15-10
Premium Chessgames Member
  agb2002: <johnlspouge: < <agb2002> wrote: [snip] 42.cxb6 leaves White with two passed pawns supported with both rooks and the bishop. >

Hola, <Antonio>.>

Hello John. I'm glad to know of you.

<For what it's worth, I would have played 42.cxb6 as well, for the same reasons. Toga supports 42.cxd6+, however (about 2.5 P vs. 1.5 P), probably because the threats against the Black K become thick and quite immediate after White plays Bg2-h3.>

A decision theory problem. You have to drive to go to the office and have two paths: one is long and relatively placid, the other is considerably shorter but may encounter traffic jams so that it will take longer than using the long path. What should you do, assuming that it is not practical to wake up always early enough as to take the long path without arriving late? (To become an independent professional is not an answer).

In the case of yesterday's puzzle I preferred the longer path because I could not spend much time on it and had the impression that it could be a technical win (and a win is a win) instead of a direct attack against the black king which could eventually vanish due to some tactical trickery (with the subsequent series of pressups -far more practical than banging the head, flagellation, etc.-, you know).

Sep-15-10
Premium Chessgames Member
  Patriot: <<johnlspouge>: Everything is just fine, thank you. Nowadays, I lurk on <CG> just long enough to decide which move to analyze in depth. Today I would have looked at 28.Qh5+, and I was surprised nobody else considered it worth mentioning.

I very much enjoy "seeing" everyone: there is of course a lot of spirit in the kibitzing.

Keep well, <Patriot>.>

I was really surprised as well. I seldomly analyze anything deep...usually just deep enough that I'm certain it is a forced win/draw or just best (depending on the needs of the position), but I try to scan forcing candidates and compare them before going into anything deep. I just couldn't understand how everyone seemed to dismiss 28.Qh5+ so easily--and these were some of the best analyzers on the site. Instead they went straight for the game line and this seemed artificial somehow.

I enjoy spirit in the kibitzing as long as it is productive.

It's great to see you again and hopefully we'll be seeing more of your analysis and thoughts soon. Take care!

Sep-17-10
Premium Chessgames Member
  johnlspouge: Here is another game against the Jester:

1.e2-e4 c7-c5
2.Ng1-f3 a7-a6
3.d2-d4 c5xd4
4.Nf3xd4 Ng8-f6
5.Nb1-c3 e7-e5
6.Nd4-f3 Qd8-c7
7.a2-a3 b7-b5
8.Bc1-g5 Bc8-b7

The chessgames.com board is seen from the Black (my) perspective, thanks to <Domdaniel>'s link to the FEN Reverser http://www.zbestvalue.com/ChessFENR....


click for larger view

I have botched the opening, down about -1.1 P, but the position is lively, with some menace for both Ks.

9.Bg5xf6 g7xf6
10.Qd1-d2 h7-h5
11.Nc3-d5 Bb7xd5
12.Qd2xd5 Nb8-c6
13.c2-c4 b5-b4
14.c4-c5


click for larger view

Things are about to become exciting...

14...Qc7-a5
15.Ra1-d1 b4xa3+
16.Rd1-d2 Ke8-c8
17.b2-b4 Nc6xb4
18.Qd5-a8+ Kc8-c7
19.Qa8-a7+ Kc7-c6


click for larger view

I played for this position, the K position apparently requiring some courage. Contrary to immediate appearances, however, the Black K is safe, while the White Q is in danger! White has a lost position.

20.Bf1-c4 Bf8xc5
21.Bc4-d5+ Nb4xd5
22.e4xd5+ Kc6-d6
23.Qa7-b7 Rd8-b8
24.Qb7xb8+ Rh8xb8

The rest is just winning a won game against a computer. I miss a few mates, but Toga's evaluation never drops below 8 Ps ahead...

25.Ke1-g1 a3-a2
26.Rd2-d1 Qa5-b5
27.Rf1-e1 Qb5-b2
28.Re1-f1 Qb2-e2
29.Nf3-d2 Bc5-d4
30.h2-h3 a2-a1D
31.Rd1xa1 Bd4xa1
32.Rf1xa1 Qe2xd2
33.Ra1xa6+ Kd6xd5
34.Ra6xf6 Rb8-b1+
35.Kg1-h2 Qd2-f4+
36.Rf6xf4 e5xf4
37.g2-g4 h5xg4
38.h3xg4 Kd5-e4
39.f2-f3+ Ke4xf3
40.g4-g5 Rb1-b5
41.Kh2-h3 Rb5xg5
42.Kh3-h2 Kf3-f2
43.Kh2-h3 f7-f5
44.Kh3-h4 Rg5-g4+
45.Kh4-h5 Kf2-g2
46.Kh5-h6 f4-f3
47.Kh6-h7 f3-f2
48.Kh7-h6 f2-f1T
49.Kh6-h5 Rf1-h1+
0-1

Oct-06-10
Premium Chessgames Member
  agb2002: <johnlspouge: < <agb2002> wrote: Pattern recognition immediately suggests 45.Qxc8+: [snip]

If it helps, I find 45.Qe3 more elegant than 45.Qxc8+ (although this is best) because of the way it uses the geometry of the board. [snip] >

I also found 45.Qxc8+ rapidly by pattern recognition, but 45.Qe3 shows some real thought...

Is real thought good or bad? :) >

Interestingly, even pattern recognition requires real thought: exactly when you decide that the pattern you have found is applicable or not :)

Oct-08-10
Premium Chessgames Member
  agb2002: <johnlspouge: < <agb2002> wrote: [snip] As mentioned in his 'Secrets of practical chess', this is John Nunn's approach and I agree. The essentials of a speech are the speaker's ideas, not whether he/she insists on using technical words like 'supercalifragilisticexpialidocious'. [snip] >

I agree with your floccinaucinihilipilification of technical jargon.>

And Mary Poppins surely does also :)

<< Probably you have noticed that I abandoned the typical approaches (candidate moves, forcing moves, direct pattern recognition, etc.) and use a deductive approach instead, which by the way is the only reasonable method to solve positions like K Berg vs G Jacoby, 2007 [snip] >

The solution is a capture, the second staple (after "check") of the <CG> school of Forcing Moves, so some might object that deduction is not the "only reasonable method" to solve the position.>

I would say that the capture is the second part of the solution (identified by some scan analysis as in my post to that puzzle), while the preparation of that blow is the first part, and here is where the deductive rumination takes place.

<I am continuing, I confess, the intent of my previous post, to wave a rojo flag in front of a bull ;>) >

Er, I've been always on the bull side, just to annoy my family, who like bullfighting.

<I was curious about the "deduction" that led you specifically to 25.Rxe6, rather than the tempting 25.Rf6+. Perhaps it can be explained by temporal economy: the ultimate target of the attack is Pe6, so why waste time by interpolating 25.Rf6+ before 26.Rxe6+, thereby permitting the Black K greater latitude?>

I did consider 25.Rf6+ but forgot it quickly because I wanted to play either Qxf5+ or Rxf5+ to hunt down the black king. Since the pawn on e6 and the rook on g6 were creating difficulties the move Rxe6 became more or less obvious. The rest was mechanical calculation.

<< However (oh yes, there is always a 'however', sorry), this approach tends to be very energy demanding, or at least that's my impression. >

Probably, [initial analysis to determine the distinguishing features of a position] is more demanding of mental discipline than energy.>

If you divide the previous analysis in two parts, say, static scan (material count, pawn structure weaknesses, safety of kings and pieces, etc.) and dynamic scan (quick try of more or less evident moves to uncover the tactical possibilities so that one can start a better guided, deeper analysis), the former might require some mental discipline (not too much, though) but the latter can be energy demanding in complex positions.

<In the long run, an initial analysis minimizes mental energy, otherwise you and I would not adhere to it.

(Here, I am assuming you are as lazy as I am :)
>

I prefer to use the words "according to the principle of least action" instead of "lazyness" and its relatives :)

Although I believe that lazyness is the most unforgivable sin, I work very hard to become, if I don't die too soon, a pretty lazy codger (even mathematicians have to accept one or two contradictions... ;-).

Dec-03-10
Premium Chessgames Member
  lost in space: Hi John, nice meet you again. Major Tom is the reason why my handle is lost in space.

My music taste is meanwhile very much in the direction guitar blues; listening just right now Kenny Wayne Shepherd "Live in Chicago". The best what is around currently.

LIS

Dec-20-10
Premium Chessgames Member
  dzechiel: John - send me an e-mail. The link to your personal chess page in your profile is broken, and when I sent you an e-mail, it bounced. Dave
Jan-19-11
Premium Chessgames Member
  morfishine: Do you think downloading a chess engine to my computer will slow it down? The wife and I have one PC, and she's quite busy with her business. Sounds like I need to get a second PC. I definitely need an upgraded engine. My computer is an old K2150 which has done quite well (although slow) picking most of the moves, but like last night, after I left it on 8-hrs for that one move, it gave 61...Nb6. When I started testing 61....Nc5 it produced 62...Ra2, so it knows to put the rook on the second rank. Thanks for all of your help and input.
Feb-08-11
Premium Chessgames Member
  morfishine: I haven't forgotten you and the assistance you offered in the latter stages of the recent POGO game. I am heading up a forum that focuses on short-term "improvements", move-order changes, subtleties, etc. Drop by my forum anytime.

Morfishine

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