The Towers of Hanoi is a puzzle where the goal is to move rings between three towesr where smaller rings always have to lie upon larger ones.
Defined on page 55
Used on Chap. 4: pages 54, 55, 60, 61, 67, 70; Chap. 15: page 365
Links:
towersofhanoi.info: towersofhanoi.info: includes intercative game