The highly acclaimed SOS series provides intermediate chess players with perfectly playable, easily digestible opening ideas: deviations from main line opening theory in a very early stage of the game (usually before move six).

Anyone with a  rudimentary knowledge of the chess opening will be able to apply these SOS-ideas in an actual game.

a quick look at the SOS's in this issue

There is no need to study large quantities of stuffy theory, but there is an almost immediate return on the investment of a limited amount of time. Readers of SOS will baffle their opponents, gain crucial time, and stand a good chance to get an advantage in the game.
 
Contents
Jeroen Bosch - The SOS Files
Lubos Kavalek - Closed Sicilian: Vinohrady Variation
Nigel Povah - The Deferred Staunton Gambit
Jeroen Bosch - Zviagintsev’s Sicilian Surprise
Igor Glek - English Opening: Chebanenko’s 3...h6
Adrian Mikhalchishin - The Romanishin Gambit
Dorian Rogozenko - A Spanish Surprise from Romanishin
Tibor Karolyi - The Nadanian Attack
Stefan Löffler - Sacrificing a Tempo in the Slav
Jeroen Bosch - SOS in the Ruy Lopez Exchange
Adrian Mikhalchishin - Nimzo-Indian Vitolinsh Gambit
Mark van der Werf - Bishop First: 1.d4 d5 2.Bf4
Jeroen Bosch - Surprise in the Najdorf
Ian Rogers - Thinking Sideways: 1.d4 c6 2.c4 b5
Jeroen Bosch - Rubinstein’s Anti-Meran Variation
Sergey Tiviakov - English Four Knights – 4.d4 e4!?
Hikaru Nakamura - Attacking the Sicilian Centre

US National Master Randy Bauer:
"An excellent series worth purchasing for most players wishing to play the opening well without a huge investment in theoretical research."

Lubosh Kavalek in the Washingtom Post:
“Unusual and almost supernatural opening ideas.”

Grandmaster Glenn Flear:
“Tricky opening ideas, not much to learn, surprise value and lots of fun.”

Nigel Short in the Daily Telegraph:
"A refreshing change from the usual dreary technical works.”

Jens Madsen at Chessville:
“Most players, from intermediate level and up, should be able to find at least a couple of fun ideas in SOS to incorporate in their armory.”

Chess Today:
“No matter what opening you play, you will find something exciting here.”

Heinz Brunthaler in Rochade Europa:
“SOS is a sparkling star in the grey sky of theory.”