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H Runde 
Photograph copyright © 2007 Raymond Boger.  
Hans Arild Runde
Number of games in database: 19
Years covered: 1997 to 2008
Last FIDE rating: 1988
Highest rating achieved in database: 2054
Overall record: +7 -5 =7 (55.3%)*
   * Overall winning percentage = (wins+draws/2) / total games
      Based on games in the database; may be incomplete.

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B29 Sicilian, Nimzovich-Rubinstein (2 games)

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HANS ARILD RUNDE
(born Jul-07-1972, 42 years old) Norway

[what is this?]
Contributor to Chessgames.com as User: frogbert. Fan of Magnus Carlsen since 2001. From April 2008 to August 2011, Runde maintained an unofficial version of live FIDE ratings of leading grandmasters at http://chess.liverating.org/.

On January 1, 2010, Henrik Carlsen wrote "We would also like to thank the many chess enthusiasts contributing to chess as spectators and commentators, ..., chess blogs (with significant contributions from for instance Hans Arild Runde ...)". (Source: http://blog.magnuschess.com/1262373...)


 page 1 of 1; 19 games  PGN Download 
Game  ResultMoves Year Event/LocaleOpening
1. H Runde vs A Groenn  ½-½55 1997 ASKOs KM , gr. AB06 Robatsch
2. O Hole vs H Runde  ½-½41 2000 ASKOs HTA04 Reti Opening
3. H Runde vs T Gabrielsen  0-146 2001 ASKOs PinseB03 Alekhine's Defense
4. C F Ekeberg vs H Runde  ½-½66 2001 Teams East 00/01, 1. divA11 English, Caro-Kann Defensive System
5. H Runde vs K Stokke  1-051 2002 Troll MastersB27 Sicilian
6. Carlsen vs H Runde 1-032 2002 Astlandserien 01/02 div. 1, ASKO II - AskerB29 Sicilian, Nimzovich-Rubinstein
7. E Hagesaether vs H Runde  ½-½56 2002 NOR Ch RorosA08 King's Indian Attack
8. H Runde vs S Johannessen 0-126 2002 Teams East 01/02, 1.div.B47 Sicilian, Taimanov (Bastrikov) Variation
9. H Runde vs B Thanke  1-043 2002 Teams East 01/02, 1.div.B86 Sicilian, Fischer-Sozin Attack
10. B Thanke vs H Runde 0-138 2003 NOR Team Champ , OpenB29 Sicilian, Nimzovich-Rubinstein
11. H Runde vs M Jensen 1-024 2003 ASKOs KM , gr. AB14 Caro-Kann, Panov-Botvinnik Attack
12. H Runde vs B Egede-Nissen  ½-½69 2005 Teams East 04/05, 2.divB01 Scandinavian
13. G Henriksen vs H Runde 0-146 2005 NOR Team Champ , OpenE13 Queen's Indian, 4.Nc3, Main line
14. H Runde vs N A Mellem  1-042 2005 ASKOs KM , gr. AB41 Sicilian, Kan
15. H Borchgrevink vs H Runde  ½-½52 2006 NOR Team ChampE12 Queen's Indian
16. O Hole vs H Runde  ½-½34 2006 ASKOs KM , Gr AD43 Queen's Gambit Declined Semi-Slav
17. K Trygstad vs H Runde  1-060 2006 Teams East 05/06, 1. divB43 Sicilian, Kan, 5.Nc3
18. J Aulin-Jansson vs H Runde 1-050 2007 NOR Team ChampE15 Queen's Indian
19. H Runde vs O Moen 1-038 2008 Norwegian Club ChampionshipC78 Ruy Lopez
 page 1 of 1; 19 games  PGN Download 
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Runde wins | Runde loses  
 

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 214 OF 242 ·  Later Kibitzing>
Feb-14-12  frogbert: just so that i don't forget, i'll briefly give my 33. Rc1 main-line without a single variation:

33. Rc1 g5! 34. Rxc4 gxf4 35. Bxf4


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35... Re2+ 36. Kxd3 Rxa2 37. b6 Rb2 38. Bc7 Ke6! 39. c6 Kd5! 40. b7


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this looks grim for black, but...

40... Rb3+! 41. Rc3 Rxc3+ 42. Kxc3 Kxc6 43. b8:Q Rxb8 44. Bxb8


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white has only one pawn left, but at least the bishop has the right colour. but is it enough?

44... Kd5 45. Kd3 a4! 46. Ke3 Ke6 47. Kf4 Kf6 - again, just in time!


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now it's clear that white needs a zugzwang to win.

48. Be5+ Kg6 49. Bb2 Kh5!


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unfortunately this is the <only> way to force black's king away from the defence of the f-pawn, and if white takes on f5 his king is too far away from black's a-pawn and the bishop can't both guard h2 and stop the passer. hence we must try something else:

50. Kg3 Kg6 51. Kh4 Kh6 52. Bc1+ Kg6 53. h3!? Kf6 54. Kh5 Ke5!


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is white making progress?

55. Kg5 Ke4! 56. h4 (Kh6?? loses to f4) 56... Ke5 (or h6+) 57. h5 Ke4 58. h6 Ke5 59. Bb2+ Ke4


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i think this is a nice final diagram: black doesn't need to protect h7 or capture white's pawn, simply because his own passers are faster and overpowers the bishop if white loses his cool.

what's the moral, if any? maybe power to the pawns. :o)

Feb-14-12  frogbert: <however, it looks like black can defend "passively" here, with 42... Kc5 improving his king. if white does nothing, then black counter-attacks via the g- or e-file, for instance 43. Rg7?! (or 43. h4 Rg8) 43... Rfe8 44. h4 Re2+ 45. Kb1 Re1+ 46. Kc2 and draws (46. Bb2? loses to Kc6, Rb8 etc.)>

it should be "46. Bc1? loses" of course.

Feb-14-12  frogbert: btw, black can actually give up his f-pawn in the following position, even if he doesn't have to:


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assuming white tries 50. Bf6!? instead of the natural and perfectly good 50... Kg6 even 50... a3!? works for black: 51. Kxf5 a2 52. Kf4 Kg6 53. Bb2


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the point is simply that 53... Kh6 (or Kh5) 54. Kg4 Kg6 55. h4 Kh6 56. Bd4 Kg6 57. h5+ Kh6 runs into a cute stalemate:


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oops! :o)

Feb-14-12  frogbert: there are some funny lines with under-promotion in the 33. Kc3 variation. in the position after 42. Rxh7 in the "main line" where i showed the slightly "passive" but seemingly sufficient defence with 42... Kc5 there were options:


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the more counter-attacking approach with 42... Rfe8!? is also interesting. as a first illustration, let's consider 43. Bc7?! Re2+ 44. Kc3 (Kc1? Rg8! winning for black) 44... Rdd2!


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here, 45. b8:Q?? is mate in two, after 45... Rc2+ 46. Kd4 Re4 mate - and <all> black pieces left (including the king and the a5 pawn) participated in delivering mate. and 45. b8:N+ Kb5 46. a4+ Kxa4 47. Kxc4 is slightly better for black.

white has better than 43. Bc7?! though:

43. Rf7 a4! and here

a) 44. Kc3! Kc5 45. Rxf5+ Kc6 46. Rf7 Kb5 47. Rc7 Rd3+ 48. Kc2 Rdd8 49. Bg3 a3 and white struggles with making progress:


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b) 44. Bc7!? is funny, due to 44... Rd3! 45. b8:N+ [but we need to look at 45. b8:Q too: 45... Re2+ 46. Kc1 Re1+ 47. Kb2


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now, unless the existence of the accurate 47... a3+! black would've been in trouble, since after 47... Re2? 48. Ka1! the queen comes to the rescue on b1, breaking the perpetual (and winning a rook for the b-queen). 47... a3+ 48. Kc2 is still a perp, though.]

back to the "real" line:

47... Kd5 48. Rxf5+ Ke4 49. Rf2 Re6! controlling the knight. black should again draw:


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Feb-14-12  frogbert: i need someone to proofread for me...


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<very beautiful! just-in-time defence :o) and after 39. Bc7 Re8 40. Bf4 Re2 it's a draw by repetition.>

that's supposed to read <39. Bd2> - 39. Bc7? or 39. b8:Q? would force black to mate on c2 ...

Feb-15-12  frogbert: <Curious to see your miracle save.>

is the miracle confirmed, shams? :o)

Feb-15-12
Premium Chessgames Member
  Shams: <is the miracle confirmed, shams?>

Well, I haven't had time to go through all of it, but it looks great and really is an instructive game. I will return to it again. Don't be offended, but I'm not wrong in assuming you've had some help here, am I? If it's all you then it is very impressive indeed.

I only ask because I'm curious about using engines for endgame analysis; I've done very little of it. Even a couple years ago I could still be heard saying that engines weren't much help in endgames, but that surely stopped being true a long time ago, if it ever was.

Feb-15-12  frogbert: <I'm not wrong in assuming you've had some help here, am I?>

certainly not, of course i had to use engine assistance - and good amounts of it too.

<I'm curious about using engines for endgame analysis>

well, they can't be trusted blindly - and in particular if don't have etbs installed. but paired with some decent understanding i think they provide invaluable help. sometimes you need to check that the engine doesn't flag a "virtual" advantage (like winning a piece but ending up in a theoretically drawn position), other times it must be herded a little because you, the human, actually understand better the <idea> behind a manouver that it already tried in a slightly different (but conceptually similar) position - that obviously isn't present in its cache. buy you "cached" the idea!

also, as carlsen often demonstrates, end games are full of tactics and related nuances that i will surely miss most of, even when analysing a position with all the time in the world available. of course, you will learn a lot from the latter too, but it's not that useful if what you really want to learn is the "ultimate truth" about a position.

in this case my goal was indeed to figure out <if> there was a theoretical save for black, against beste play. in a practical game on our level nobody would've played even close to perfect here, but even so the defence would've probably been to tough for me; while i understand that in order to defend one has to

1) get the king into the action on the queen-side

2) create counter-play via the open file(s) (opening new ones if necessary)

the various tactical (implementational) elements of doing that demand a lot. as i said initially, my "instinct" was to play Kf7 and/or put the f-rook in the e-file. both have tactical refutations - it simply doesn't work... :o)

Feb-15-12  frogbert: <an instructive game>

well, if you count the end game that never was played, it indeed was. ;o)

but by all means; <white's exchange sacrifice> that was the starting point here is indeed brilliant, when followed up correctly. from the black side of it, i think the crucial importance of breaking up the e- and/or g-file to create counterplay is the main take-away. and even at initial cost of 2-3 pawns in some lines.

Feb-15-12  frogbert: <a1) 46. Re1 (with the idea of supporting the b7-b8 advance from b1) is met with 46... Rg2+! 47. b8:Q+ Rxb8 48. Bxb8 c3!>

man, how hard is it to punch in these lines correctly?!

46... Rg2+ <47. Kc1 Kb3> 48. b8:Q+ Rxb8 49. Bxb8 c3 etc.

countering a check with a check is sometimes a legal move, but here it wasn't ...

Feb-18-12  achieve: <frogbert> Apologies for not answering your response at Dom's a few weeks ago, also regarding the solitaire chess, but I had some issues to deal with at that moment and later found that you had already answered through Buro. He ain't all that bad at solving puzzles.

Good to see you active on many fronts and offer some deep analysis.

I even went to the lengths of trying to compose my own 8-men problem, then exhausted threw the pieces back in the box!

But a belated thanks for introducing that addictive and interesting game.

Feb-19-12  frogbert: no worries, achieve. apparently it can be rather addictive: when my father (rated 1400 in norway, at least equivalent to ca 1600 fide) visited last month, he solved all 60 puzzles in the box before he left. :o)
Feb-20-12  frogbert: shams, the past kibitzing info you get for a certain user covers a specific numbers of recent post, but limited to max 10 different forums. hence, if i spread all my kibitzes over 4-5 forums over a long enough period of time (to produce the necessary number of posts - i haven't bothered to figure out the exact number although it wouldn't be very hard), then only 4-5 forums will show up.

if you're really curious about the number, you can post bogus posts in your own chessforum (and clean up afterwards) until your chess forum is the only thing that shows up in your list. then count the posts. or you could simply ask on the cg.com forum. :o)

Feb-24-12  frogbert: i've created a new cg.com "tool" that makes it easier to "edit" posts, i.e. to copy and change a post, deleting the original and posting again, when you realized that you forgot something, made a silly spelling mistake, etc.

see my profile and chessgames.com chessforum for more details.

enjoy. :o)

Feb-24-12
Premium Chessgames Member
  Bureaucrat: Your new tool is cool. It also makes your "broken link converter" somewhat redundant :-).

Only one thing: At first I thought the links to the posts were displayed <below> the posts, but then I realized that they were on top of the posts... That somehow wasn't intuitive to me. I don't have any great ideas on how to improve the design, though. Perhaps if the grey line on top of the posts included the date and the link:

Feb-24-12 chessgames.com chessforum

I think the text about copying links could be removed.

No real need to change anything, though, as those are minor issues. I will definitely be using the new tool :-).

Feb-24-12
Premium Chessgames Member
  Bureaucrat: There ya go... the link I posted was converted to a "CG link". To see the message the way I wrote it, use the unparser :-D
Feb-24-12  frogbert: <It also makes your "broken link converter" somewhat redundant >

certainly. i just haven't come to removing it yet, and i also need to see if the new one works properly first. :o)

<At first I thought the links to the posts were displayed <below> the posts, but then I realized that they were on top of the posts... That somehow wasn't intuitive to me. I don't have any great ideas on how to improve the design, though.>

i guess you simply need to rtfm - i actually pointed out <where> the link was in the description on the cg.com forum. ;o)

<I think the text about copying links could be removed.>

yeah, probably. just wanted to make that feature abundantly clear for "new users". :o)

seemingly you had few problems figuring out how to use it, but then you're probably among the sharper knives around here, too. but it should be really simple, i think.

Feb-24-12  frogbert: i added a couple of borders and moved the date, but i'm not sure the latter makes a big difference. the borders possibly help a little to make it clear(er) to which post the link belongs. anyway. instead of spending more time on this, i really need to force myself to complete the f.a.q. for the other presumedly more widely appealing "tool". ;o)

however, before that - "real" work. :o)

Feb-24-12
Premium Chessgames Member
  Bureaucrat: <i added a couple of borders and moved the date, but i'm not sure the latter makes a big difference.>

The new design looks good!

<i guess you simply need to rtfm - i actually pointed out <where> the link was in the description on the cg.com forum. ;o)>

Yes, I did notice, eventually. My method:

1) Try it out
2) Figure it out
3) Read your explanations

Unlike my dad, who always reads the manual <before> trying anything at all, I like to push buttons first and read later.

Feb-24-12  frogbert: i guess i'm somewhere inbetween. i like finding out how things work on my own, but i also enjoy reading manuals :o)
Feb-26-12
Premium Chessgames Member
  nimh: Here are five easiest three-movers from chesstempo.com that do not end in mate and have at least 25 solving attempts.


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1. Rxe8 Rxe8 2. Qxe8+ Qxe8 3. Rxe8+ *


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1... Rxc2 2. Rxc2 Rxc2 3. Qxc2 Qxe3 *


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1. Rxd8 Rxd8 2. Rxd8 Qxd8 3. Qxf7+ *


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1. Rd8+ Kb7 2. Nd6+ Kc6 3. Nxf7 Nxf7 *


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1... Rxd5 2. Rxd5 Qxd5 3. Qxd5 Rxd5 *

And five hardest puzzles, also 3 moves long:


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1. Qd1 Bf6 2. Rxh5 Qxh5 3. Nxc8 *


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1... Be2+ 2. Kg2 Qd3 3. Rh2 Qxd2 *


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1. Raxf6+ Kh5 2. Ra6 Rxg2+ 3. Kxg2 *


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1. Be5 Qh6 2. d6 Rd4 3. Bxd4 *


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1. Ra3 Bxe5 2. Rxc4 Re8 3. Rxd3 *

Where's the difference? Has it something to do with the amount of material, or the symmetry? Hardly, the average material is 50.05 for easiest and 44.85 for hardest puzzles. Neither is symmetry the cause, as the average amount of material in symmetry is bigger for more difficult problems; 3.6 - 4.2. The difference between two best moves is in all puzzles large and almost identical on average for both sets; 4.33 - 4.23.

Remarkably, both Stockfish and Rybka were able to spot the best moves and winning advantage in less than 1 second for all puzzles. For engines the difficulty is virtually nonexistent.

So, what factors make some puzzles more difficult than the other ones? What do you see?

Feb-26-12  frogbert: is that a rhetorical question, nimh?

to me, and for a human, it's rather clear why the easy ones are easy - they all had one single, simple theme where the execution was essentially "taking many times on the same square" and collect/win material. except the last one, where you force the king into a fork and win material.

neither of the hard ones had any "bang-bang-bang" sequence of straight-forward moves, imo.

however, if you're asking how we can use an engine (or our own specially crafted heuristic) to differentiate between these scenarios, i have no experience or knowledge to offer at the moment. but i guess you might have?

Feb-27-12
Premium Chessgames Member
  nimh: I want to find out which specific move features make it harder for humans to find them. There's nothing rhetorical here. Also it's not about anything related to engines.

You mentioned two factors

1) repeated captures on the same square
2) the occurrence of one simple theme

Very good, can you name any more of them, frogbert? anyone?

Here are three puzzles, all 17 moves long, yet easier than the five most difficult three-movers posted above.


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click for larger view


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Why?

Mar-10-12  Blunderdome:


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Black to play. According to Nalimov, only one move holds the draw. Anyone want to venture a guess?

Mar-11-12  frogbert: finally a live rating update from me again:

<if> all the 4 team games i played against fide-rated players in the 2011-2012 season will be sent to fide for rating, then my fide rating of may 2012 will be 2054. (if only the two games from the national league will be rated, it'll be 2045. ;o)

since patzers like me are rated with a k of 15, my actual *live* fide rating is 2053,95 before rounding. :o)

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