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 issueThere 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. ContentsJeroen Bosch - The SOS FilesLubos Kavalek - Closed Sicilian: Vinohrady VariationNigel Povah - The Deferred Staunton GambitJeroen Bosch - Zviagintsev’s Sicilian SurpriseIgor Glek - English Opening: Chebanenko’s 3...h6Adrian Mikhalchishin - The Romanishin GambitDorian Rogozenko - A Spanish Surprise from RomanishinTibor Karolyi - The Nadanian AttackStefan Löffler - Sacrificing a Tempo in the SlavJeroen Bosch - SOS in the Ruy Lopez ExchangeAdrian Mikhalchishin - Nimzo-Indian Vitolinsh GambitMark van der Werf - Bishop First: 1.d4 d5 2.Bf4Jeroen Bosch - Surprise in the NajdorfIan Rogers - Thinking Sideways: 1.d4 c6 2.c4 b5Jeroen Bosch - Rubinstein’s Anti-Meran VariationSergey Tiviakov - English Four Knights – 4.d4 e4!?Hikaru Nakamura - Attacking the Sicilian Centre