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Member since Mar-29-07 · Last seen Jul-09-20
<Name: Arno Middelkoop
Sex: Male
Birthdate: 29 May 1988 (27 y.o.)
KNSB (Koninklijke Nederlandse Schaakbond) rating as of November 2015: 1793>

My name is Arno Middelkoop and I live in the Netherlands. I'm currently 27, 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 November 2015, my KNSB rating is 1793. In the last two years my chess progression has been stagnant, now I'm trying to improve openings and getting a solid tactical vision. I started playing on under the name Qoko, yet I'm still somewhat rusty in Blitz (only ~1550).

Me outsidei of chess: I'm a graduated Biomedical Scientist at the University of Leiden, with a speciality in epidemiology, still looking for a PhD. 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 yet I have been playing much less the last year.

Where you find me here: I am almost always occupied on the daily puzzle, although I do not post as often lately.

[Update: TheaN on dec-2015]

   TheaN has kibitzed 2641 times to chessgames   [more...]
   Jul-09-20 Showalter vs Taubenhaus, 1889 (replies)
TheaN: <cuendillar: Steinitz' comment about this being sounder if white gives knight odds seems a bit strange. An Englishman: Good Evening: <cuendillar's> comments might have a basis in truth. In many critical variations, White plays Nc3 for no other reason than to develop the QR. ...
   Jul-08-20 L McLaren vs A Ismail, 2017 (replies)
TheaN: <17.Rxg7+ Kh8 (Kxg7 18.Qg5+ Kh8 19.Bxf6#)>, however I'm also in the <18.Bxf6?! #5> crowd (Rg8+! #3), not realizing it's unavoidable mate in five, just complete disaster. The combined threats of 19.Rg6#, 19.Rg8+ Kxg8 20.Qg5# and 19.Qh6 make it so that Black has no ...
   Jul-07-20 Huebner vs Adorjan, 1980 (replies)
TheaN: This is a rather unique take on a CG puzzle, but more on Monday terms if we look at the forcing nature: <66.Kxh4> IS White's only move; everything else throws the game either by a rook or the pawn endgame. That last requires the slightest of calculation, but White's out of the ...
   Jul-07-20 Denker vs D MacMurray, 1932
TheaN: A day late but not much less of an instant solve. <14.Rd8+ Nxd8 15.Qe8#>. It's always ever slightly easier with forcing moves.
   Jun-30-20 H Pfleger vs G Mazzoni, 1966 (replies)
TheaN: The main question here is 21.Rxg7? or <21.Bxh6>. It's rather obvious the former doesn't work well because White's queen isn't going first. After 21....Kxg7 White can choose between two evils but they come down to the same, most consistent would be 22.Bxh6+ Kh8! -+ and Black will
   Jun-29-20 R Kiuttu vs A Giri, 2005 (replies)
TheaN: In all honesty <17....Rxg7> is the obvious move because Black levels material and nothing's threatened on account of 18.Qxb6?? Bxg2# and 18.Qxe2? Rxg2 -+ starting a deadly windmill as in the game. The biggest issue I had with 18.Rg1. One of White's worst in hindsight but it ...
   Jun-25-20 Acs vs J Konnyu, 2017 (replies)
TheaN: Bit of a broken Thursday. Black erred clearly with 26....Qe7. I was keen to play 26.Rxf6?! though which looks flashy but doesn't work after 26....Qxf6 27.Rf1 Qe7 ⩱, as 28.Bb4? Qxe3+ -+ doesn't work now. However, after 26.e4 it's just sub +1. Given, Black has to play a very ...
   Jun-24-20 S Krasnov vs Murey, 1966 (replies)
TheaN: Hm I'm not too happy with my line in the Re2 line. <31....Ng3+> is relatively obvious considering the knight's the only piece not playing an active part in the combination. <32.hxg3> I mean, this is one of two evils, but 32.Kg1 Nxe4+ (better than 32....Ne2+) 33.Rg2 (else ...
   Jun-23-20 I Rabinovich vs Goglidze, 1939 (replies)
TheaN: <23.Qh6 #2> as <23....Qe5/Qf6 24.BxQ gxh6 (else Qxg7#) 25.Nxh6#>. Pretty sure I've seen this before. Doesn't make it less flashy; it's kind of a brilliant way to attack a mating square head on, literally.
   Jun-22-20 E Pettersson vs Stahlberg, 1935 (replies)
TheaN: Black simplifies this to a point where White has no game left after <34....Rb1+ 35.Kxb1 (Ka2 Nxc3+ 36.Ka3 Rb3#; Ka3 Rb3+ 36.Ka2 Nxc3+ 37.Ka1 Rb1#) Nxc3+ 36.Kb2 Nxe2 -+>. I do concur with <Cibator> that this might not have been necessary at all. Best move indeed (-8) but ...
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