source: https://leetcode.com/problems/knight-dialer/ 935. Knight Dialer Table of Contents935. Knight DialerDescriptionExample 1Example 2Example 3ConstraintsSolution Description The chess knight has a unique movement, it may move two squares vertically and one square horizontally, or two squares horizontally and one square vertically (with both forming the shape of an L). The possible movements of chess knight are shown ...