This book is the 2nd edition of the last volume of the famous quadropaedia on mathematical games. The last volume is focused on one-player games. One chapter is devoted to detailed discussion of the Solitaire game, involving various aspects like problem decomposition algebraic evaluation, etc. In the next chapter authors discuss and give hints to a variety of well-known puzzles like Hungarian cube, Lloyd's 15, Hanoi towers and dozens others. The last chapter is devoted to the game of Life, starting by simple examples of interesting configurations and ending with discussing the power of cellular automata. This excellently written book is not just a comprehensive monograph on recreational mathematics. It presents various mathematical concepts in a natural (and sometimes funny) way that can be understandable also to a reader without strong mathematical background.