4...Bb4 check !?
at Gogol-Mogol restaurant in Odessa,
analysing a new [to me] system of the Sicilian Defence after watching the #GrandChessTour games!
#UnderstandingTheSicilian
June 2017: very glad with the news that my new chess book, Understanding the Sicilian, is released! http://www.gambitbooks.com/books/Understanding_the_Sicilian.html