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

>> More Surprises!

Carsten Hansen, ChessCafe:
'The variations can be exceedingly difficult if you are not prepared.'

IM Watson, The Week In Chess:
'The most entertaining of books about openings that I know of (...) I recommend SOS because it is so much fun, to be sure, but also for its practical utility.'

Joe Petrolito, Australian Chess:
'These suggestions are very attractive to club players.'

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

The Washington Post:
'A refreshing book, full of rare, uncommon but sound ideas that can spice up the opening repertoire of any tournament player.'

IM Jeremy Silman:
'You’ll be glad you joined Bosch’s bandwagon.'

GM Glenn Flear:
'Tricky opening ideas, not much to learn, surprise value and lots of fun.'

Bob Long, Chessco:
'For throwing your opponent off balance, it is hard to beat this series.'

Rochade:
'A sparkling star in the grey sky of theory.'