Yes, the backtracking algorithm course by great learning is totally free of cost, and it covers all the basics of backtracking. This course on "Backtracking Algorithm" will cause you to understand how backtracking occurs and, therefore, the essential criteria for backtracking, post which you'll have an entire understanding of its algorithm with every constraint. Then finally, we'll implement the algorithm using Java and play with the input array. We'll also attempt to add some new constraints within the implementation and check out to vary the input. During this course, you'll first understand recursion, how it works internally, the three steps involved, what's meant by activation record, why one requires the bottom condition, etc. Then we mention one among the classic backtracking problems, i.e., Rat during a Maze. This backtracking algorithm is totally free so start learning today.