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Member since Mar-29-07 · Last seen Dec-22-14
<Name: Arno Middelkoop
Sex: Male
Birthdate: 29 May 1988 (25 y.o.)
KNSB (Koninklijke Nederlandse Schaakbond) rating as of July 2013: 1805>

My name is Arno Middelkoop and I live in the Netherlands. I'm currently 25, and I've been playing this wonderful game from the age of seven.

In that year, 1995, I joined the local chessclub here in Zoetermeer, Botwinnik. I enjoyed playing with fellow novice yooth players, and I intended to become a better player than most of them and did that. Even so, in the six years to come I probably only reached an official rating ~1500, not being active in any external competition.

As of May 2013, my KNSB rating is 1805. In the past years my chess progression has been stagnant (from 1793 to just >1800 in two years), and definitely not as solid as I hoped it to be.

Besides chess I'm following a university course: Biomedical Sciences at the University of Leiden. As BSc I am now doing my final internship for MSc in epidemiology, doing research in orthopeadics.

Besides both chess and education I'm a Japanese RPG, Anime and Manga fan, although it has been less and less occupying the last years: I enjoy the franchise more than actually being an addict.

I (still) have a general addiction for World of Warcraft, playing MoP now and my rogue Qoko (Europian Frostmane) is still ahead of the curve raiding wise.

Where you find me here: I am almost always occupied on the daily puzzle, as well as screening and sometimes posting on the GotD. However, aside liking to comment on less common games, I started to lurk the recent tournaments a bit more, refreshing my grandmaster chess knowledge.

[Update: TheaN on 08-07-2013]

   TheaN has kibitzed 1927 times to chessgames   [more...]
   Dec-20-14 S Del Rio Angelis vs B Olape, 2004 (replies)
TheaN: Just for the record, for people that don't want to read through all my analysis, <28....Ke7=> is a draw by repetition. All of white's tries go astray, of which <29.Re1 Qxa4!> is the most prominent. I still see people talk about a win after 29.Re1, but it is not.
   Dec-19-14 Z Rahman vs Yudasin, 2004 (replies)
TheaN: After some more thought the silicon monster gives black a small edge after <30....Rbe8?! 31.Qf2! Bc3! 32.Kg2!!> as Bxb4 meets Qb2+ and white will win at least a piece back. Now <32....Nf6 33.h3!> again controlling g4 <33....Bxb4 34.Qb2 Bc5 35.Qxf6+ Kg8 36.d4
   Dec-18-14 Nijboer vs A Zhigalko, 2004 (replies)
TheaN: Funny thing: not being able to visualize the mate directly quite some solvers (including myself) chose the superior <31.h5 Rxf7 32.hxg6+ Kg8 33.Rh8+!>. This mates in 7: <33....Kxh8 34.gxf7 Nd2+ 35.Rxd2 Qf5+ 36.Qxf5 Bxg5 36.Qxg5 Ra6 37.f8=Q+ Kh7 38.Qgxg7#>. However, ...
   Dec-17-14 Jobava vs G Arzumanian, 1999 (replies)
TheaN: For what it is worth, I did see the entire combination up till mate at the 37th move in the Nh4+ line. This is <exactly> the reason I went with the Nf4+ line because in the wrong variation it mates on move 35. This comes back to the recent question "once you see a forced mate, ...
   Dec-16-14 T Farley vs W Teerapabpaisit, 2004 (replies)
TheaN: Tuesday 16 December 2014 <39.?> For a split second I missed black was a bishop down, but it is also the moment you see the white bishop and the solution to the puzzle. When capturing on a2, black forgot his king safety, after <39.Bxg7+ Rxg7 40.Qd8+ Qxd8 (Rg8 41.Rxg8#) ...
   Dec-15-14 P Vavra vs V Slezka, 1994 (replies)
TheaN: Monday 15 December 2014 <29....?> We should poll how many solvers first went for Qxb2+ and quickly noticed that wasn't actually going anywhere. After that's clear, <29....Rxd1+ with 30....Qxb2#> is obvious.
   Dec-14-14 M Apicella vs Lautier, 2001 (replies)
TheaN: Hm, I incorrectly stated in my first line that Bd5+ is mate after Kf5. In that position however, even if I would play Bd5+ black can correct the mistake by playing Bf7+ or mate white as the king is now alone on the 6th rank. I missed the Qb5 defense. I can understand Rd5 is
   Dec-13-14 E J Diemer vs K Locher, 1948 (replies)
TheaN: Apparantly I commented on this game in 2008... some older comments surprise me, but this one completely flabbergasted me as I didn't not recognize the position in the slightest. As for today's puzzle, I actually couldn't make Qh6+ work and would have gone with Rhf1. Best move, not the
   Dec-12-14 Hort vs Chandler, 1982 (replies)
TheaN: <gofer> the line with 24.Rg1 is insufficient, especially because of 24....f6 25.Bh6 g5! not working.
   Dec-11-14 M Oleksienko vs M Golubev, 2007 (replies)
TheaN: Interesting to see the discussion going about which endgame for black is stronger. I do believe that with the fewer pieces on the board that have a significant difference in activity (after the main line with white Rc3 and black Ra8) it seems easier to win. White will have to move his
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