פרק 7 - פתרון רב-קו
الفصل 7 - حل متعدد الخطوط
Chapter 7 – Multi-line solution

The title of the last chapter is a gimmick to the name of the national ticketing system in Israel, called Rav-Kav, which means Multi-line. I used this phrase in the Hebrew title, even though the translator used different one when I typed the whole English title.