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The last leg of FIDE Grand Prix 2014/15 is under way in Khanty-Mansiysk. To celebrate this great chess event, we have decided to offer substantial discounts on our annual subscription packages (up to 33% off of the regular prices), so hurry up - the offer will last only from May 14 to May 26:

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During that period CO 24/7 Editorial Board will be updating opening lines and articles on a daily basis, and we will be back with a brand new opening line on May 27 (Wednesday). Don't miss out on this opportunity to keep abreast of the latest and greatest in modern opening theory, as we have now covered more than 90% of the entire opening theory with unparalleled quality and depth.


 

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[May 22, 2015] NEW UPDATED OPENING LINE
Updated Opening Line by GM Bojan Vuckovic:
Gruenfeld Defense: Exchange Variation, Classical Main Line [Line 145]

[May 21, 2015] NEW UPDATED ARTICLE
Updated Opening Article by GM Boris Avrukh:
September 2014 Revisited: Scotch Game, Potter Var. (7... a5!?)

[May 20, 2015] NEW UPDATED OPENING LINE
Updated Opening Line by GM Bojan Vuckovic:
French Defense: Winawer Variation, Main Line [Line 345]

[May 19, 2015] NEW UPDATED OPENING LINE
Updated Opening Line by GM Bojan Vuckovic:
Sicilian Defense: Dragon Variation without 6. Be3 [Line 464]

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