The winner of Zurich Chess Challenge (ZCC) 2015 and 2016 is also on top in 2017, now named Kortchnoi Zurich Chess Challenge (KZCC).
Hikaru Nakamura took his third Zurich Chess Challenge in a row. Additionally, he claimed
victory in all three formats: the "opening blitz" (4 min plus 2 sec increment) which did not count for the overall classement but was used for the seedings and colours, won on better tie-break above Gelfand, the so-called "new classical"
(45 min plus 30 sec increment), supposed to be Elo rated as a rapid, won outright, and the "final blitz" (10 min plus 5 sec increment), called "semi-blitz" by the spectators, won on better tie-break above Nepomniachtchi. GM Nakamura thus won
the overall combined point standings as claer first (with the 'new classical games' counting double, 2 points for a win and 1 point for a draw). Hopefully, we did not mess up things..
Note: The closed Zurich Chess Challenge Tournament 2017
is not rated at all !! See for instance GM Anand’s FIDE chess profile (player card): https://ratings.fide.com/hist.phtml?event=5000017 (no games in April 2017). This seems
bizarre - and was not communicated by the organisers, and thus not mentioned by most of the media.
In the 2017 KZCC Master Open, five players shared 1st place after seven rounds: GM Eltaj
Safarli (winner on tie-break), GM Alexander Motylev, GM Aleksandr Rakhmanov, GM Ferenc Berkes and GM Gadir Guseinov. This additional Open (swiss system, classical chess, with 90 min plus 30 sec increment, Elo rated by FIDE) during the traditional ZCC, was
held for the first time, and using a 'Korchnoi Memorial' claim.
Zurich Chess Challenge started in 2012.
The first edition as a match, since 2013 as invitational round robin event with special point scoring, at the beginning classical and rapid chess were combined, then no longer classcial chess, only rapid and blitz. Zurich CC is played in
week-end type of rapid and blitz exhibition held from a Thuersday evening or Friday to Monday. The KZCC 2017 exceptionally took place in the Kongresshaus, Zurich, all others in the Hotel Savoy, Zurich.
Zurich shows an exhibition type of tournament, similar at the former Amber
chess tournament ambience, which explains some laxness and a comparatively brief duration of the whole event.