Caissa 4 published Issue by Mario Ziegler - 2017-11-172017-11-170 We are happy to announce the publishing of the fourth edition of Caissa. In this 2nd edition of 2017 we present 13 authors with different articles about the research of board games. In this issue one focus is about the German chess master Oskar Codel, whom we dedicate 3 articles. In addition we present articles from the ancient strategy game “Latrunculi” to connections between chess and theater, ending with the grim topic of chess in the Buchenwald concentration camp. A list of the topics and authors, as well as three extracts are to be found at Caissa 2/2017. With many thanks to our authors and associates, we wish our readers a good time with the second edition of Caissa.