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Member since Mar-29-07 · Last seen Sep-21-23
34yo Dutch male chess player with a KNSB rating of <1820> (per June 2022).

Nickname disclaimer: I've occasionally seen people abbreviate my nickname to Thea, but it's not from 'Thea N', it's from 'The aN', 'An' being an otherwise useless abbreviation to my first name. I go by a different nick nowadays, just use TheaN in full or call me Arno :>.

Where you find me here: I am almost always occupied on the daily puzzle, at least during the weekdays. Weekends tend to be above my level, though I occasionally get full weeks done.

Other interests are biology (sciences, teaching), gaming (WoW, DOOM, GTA, among others) and the occasional binge watch (few animes and RL shows like Stranger Things, assorti of stuff really).

[Update: TheaN in jun-2022]
[Disclaimer: for sake of privacy I've edited my profile a bit.]

   TheaN has kibitzed 3517 times to chessgames   [more...]
   Sep-21-23 P Johner vs F D Rosebault, 1910 (replies)
TheaN: And to clarify, yes, I did look a fair amount at the text line, but somehow couldn't make the lines with h4+ and Re5 work. Given the main issue for White here is Black's counterattack, if we can pick up a piece, threaten another and defuse the attack, I'd say it's just as practical ...
   Sep-20-23 J Mason vs F Perrin, 1873 (replies)
TheaN: Saw the game line in full so no need to repeat it, and in case of 20....Ke6 21.Qxd5+ Ke7 22.Qd6#. These kind of mating nets are not that difficult, simply because an enemy king surrounded by four to five pieces is bound to get stuck somewhere. King's limited mobility and the fact that
   Sep-19-23 A Needleman vs A Cordero, 2003
TheaN: <PawnSac: as mentioned.. Bg5 is a move, but ..Qa8 Rd8+ Qx Bx Kx gives up the R + B for Q, when it is better to play Rd8+ directly then Bg5+ so that if f6 or Be7 white continues Bx+ and only gives the R for Q. > Yeah and that's the point, that's not true: 44.Bg5 Qa8 (else ...
   Sep-18-23 L De Veauce vs J N Sugden, 1971 (replies)
TheaN: Spotted the game line almost instantly and that's a swift #4. Ng6+ wins apparently but nowhere near as clean.
   Sep-14-23 Z Izoria vs T Luciani, 2005 (replies)
TheaN: Not yet seeing a lot of company for <16.Bxf7+ Kxf7 17.Ng5+ Kf6 18.Qf3+>. In patterns like this you rarely need the knight to finish it off, here 18....Kxg5 19.Bd2+ #2 mates shortly and after <19....Ke5> at least Qg3+ wins the queen. Otb I'd probably taken my time and found
   Sep-13-23 A Muzychuk vs M Herbold, 2017 (replies)
TheaN: <22.Rxg7+> is obvious once you see the fork. 22....Kh8 23.Qh4 +- doesn't help Black at all as now the queen's already in a better position. I stopped after <22....Kxg7 23.Ne6+ +->, though I guess the game line is a little bit more involved than I thought as I only spotted ...
   Sep-12-23 Yakovich vs Azmaiparashvili, 1994 (replies)
TheaN: Given it's Tuesday I had to check twice this is an actual mate in three. It is. Bit of an odd choice in that regard, but I like the involved patterns.
   Sep-11-23 D Saduakassova vs A Geller, 2019 (replies)
TheaN: <29.Rxg7+ Kxg7 (Kh8 30.Nf7#) 30.Nf3+ +-> and that's that, sure seeing more is fine and White has to be wary after Qxe6 Rc6 for Bxh2+ but that's about it.
   Sep-07-23 D Paravyan vs Vachier-Lagrave, 2021 (replies)
TheaN: Bit obvious isn't it? Octopus knights on d4 and b6, White can take out Black's and get a couple of pawns to boot. Black can return the favor but will simply be a few pawns down. Had <29.Rxd4 expo 30.Rxd4 with 31.Rxb4 +-> with the idea of a6 a7 and I don't think Black has a ...
   Sep-06-23 I Videnova-Kuljasevic vs M Lubbe, 2008 (replies)
TheaN: <MissScarlett: <33. Rxa7+ Kxa7 34. Rd2> also works.> It does, but regardless of followup I'd argue that Bc5+ is much stronger. The rook's already well placed, d7 gets revealed and it comes with tempo, so three birds one stone pretty much. Analysis shows, Rd2 is +3 which ...
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