Brings you a wide variety of unusual opening ideas. They may seem outrageous at fi rst sight, but have proven to be perfectly playable.

An SOS deviates very early from the regular lines in a mainstream opening, usually even before move six! That is why it is so easy to actually bring the variation on the board.

You will baffle your opponent without having studied large quantities of stuffy theory.

Please have a quick look at the SOS's in this issue

Contents
1 Jeroen Bosch The SOS Files 8
2 Dorian Rogozenco The Blumenfeld Gambit 22
3 Jeroen Bosch The Lewis Gambit 29
4 Dimitri Reinderman The Retreat Variation 34
5 Adrian Mikhalchishin Steinitz’s Anti-French 41
6 Arthur Kogan Slav: the Bellon-Murey Variation 44
7 Jeroen Bosch Slav: a Marshall Gambit of Sorts 54
8 Alexander Finkel Queen’s Fianchetto in the Alekhine 60
9 Igor Lysyj Grünfeld Indian: Kruppa Variation 66
10 Igor Khenkin SOS in a Flexible Caro-Kann 73
11 Sergey Tiviakov Queen’s Indian: Double Fianchetto 79
12 Adrian Mikhalchishin Sicilian: Romanishin Variation 89
13 Jeroen Bosch Modern Provocation 93
14 David Navara Tricky Line vs the Slav 100
15 Alexander Finkel Taking Chances in the Volga 116
16 Or Cohen Petroff for Beginners 123
17 Jeroen Bosch Winning Ugly in the Tarrasch 135

Readers of this series can ignore large areas of the ever expanding chess opening theory.

They can concentrate on these surprising ideas, because SOS variations deviate very early from the regular lines in mainstream openings.

Ideal for players who don’t have enough time to keep abreast with main line theory.