CO24-7_logo_black_background[April 22-30, 2016] Special Springtime Offer

Springtime has come, everybody’s playing, so it’s time for our Special Spring Deal: get full 14-month access to CHOPIN Encyclopedia for the price of our annual subscription (99 EUR/109 USD) and treat yourself to the only complete up-to-date opening reference guide, whose depth and quality of the regularly updated content stand high above all other commercially available opening encyclopedias.

Hurry up! The offer is valid until April 30, 2016.


[Apr 24, 2016] Updated Opening Line by GM Bojan Vučković:
Four Knights Game, Spanish Variation without 4… Nd4 (incl. Double Ruy Lopez)

[Line 374 : 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 without 4… Nd4]

Just a couple of hours after GM Vučković had published his update of Line 374, Mr. Albert Schenning from Belgium sent us a mail with a promising idea for White, beginning with 12. Qh5!? After a collaborative effort between our dear user and the CO 24/7 Editorial Board, we have finally reached a conclusion that GM Vučković’s initial evaluation that the position is approximately equal still stands, but that after Mr. Schenning’s improvement Black has to tread very carefully, as there is a long and winding road still ahead of him.

[Diagram: Black to Move] Mr. Schenning has just shown his hand, and it’s obviously a very strong one. Can you survive the attack and steer the Black’s ship into a safe haven?

Click here to see the line in our viewer…


[Apr 24, 2016] Updated Opening Article by GM Dragan Paunović:
June 2015 Revisited: Nimzo-Indian Defense, Kmoch Variation with 4… c5

The Altibox Norway Chess super tournament is under way in Stavanger, and the top-tier field practically guarantees that each game is theoretically important. P. Eljanov – P. Harikrishna, Stavanger 2016 doesn’t seem to promise equality to players of Black, so our earlier suggestion, based on the last year’s game A. Grischuk – V. Topalov, Stavanger 2015 from the same event, still remains Black’s best option in this line.

[Diagram: Black to Move] White is getting ready to treat his opponent to a slow grind, and Black is seemingly left without sensible moves. However, there is a brilliant strategic idea that should neutralize White’s positional pressure and give Black quite decent counterplay. So, are you ready to put your positional skills to the test?

Click here to see the article in our viewer…


[Apr 17, 2016] New Opening Survey by GM Aleksandar Kovačević:
French Defense in the USA: Winawer Variation, 10. Nh3!?

Fabiano Caruana, Hikaru Nakamura and Wesley So will be notably absent from the upcoming Altibox Norway Chess supertournament in Stavanger, but they will surely more than make up for it with their uncompromising play at the ongoing US Chess Championships held in Saint Louis, the new chess Mecca. The three pre-tournament favorites scored a combined 5.5/6 in the first two rounds against a highly respectable field, and our opening survey is based on Caruana’s second round win against Sam Shankland.

[Diagram: White to Move] H. Bowers – W. Meijer, corr. 2004. White has a dangerous attack, but Black is currently a piece up and seems pretty unfazed about the threat to his knight on g6. What’s the best course of action for White?

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[Apr 10, 2016] Updated Opening Article by GM Boris Avrukh:
February 2014 Revisited: Dutch Defense, Leningrad Variation with 7… c6 8. b4!?

After its heydays in the late 80’s, the Leningrad Dutch is back (if sparingly) among the elite: apart from the two high-profile clashes in 2014 (B. Gelfand – F. Caruana, Zürich 2014 and P. Lékó – R. Ponomariov, Dortmund 2014), several world-class players (most notably Tomashevsky, Radjabov and P. H. Nielsen) opted for 8. b4 as their weapon of choice against this tricky variation over the past 2-3 years.

[Diagram: White to Move] Black’s hoping to compensate for his opponent’s pressure on the c6 pawn by launching a counterattack on c4, but his efforts fall short after White’s unflinching reaction – his 18th move makes a particularly neat impression.

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[Apr 03, 2016] Updated Opening Article by GM Aleksandar Kovačević:
March 2014 Revisited: Sicilian Defense, Najdorf Variation: English Attack (10… Nb4!?)

When we originally published GM Kovačević’s opening survey two years ago, the key game for this line was (and still is) V. Láznička – R. Wojtaszek, Yerevan 2014. In the meantime, lots of (admittedly – mostly engine) games have been played, most notably S. Karjakin – D. Khismatullin, Kazan 2014, but the verdict remains pretty much the same: players of Black who enjoy the intricacies of the Najdorf Variation will certainly like their chances in this double-edged line.

[Diagram: Black to Move] Black’s compensation for the exchange is obvious, but he can make White’s life even more difficult…

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