Langrock: French Defense - The Solid Rubinstein Variation - Second EditionA Complete Black Repertoire against 1. e4 Built around the Super solid Rubinstein! The solid Rubinstein Variation of the French Defense despite its having been played by world champions and elite grandmasters has never been subjected to detailed study. The author, German International Master Hannes Langrock, has produced a book with complete coverage of this line, along with solid recommendations for Black should White deviate on the second or third