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# Chapter 13. Backtracking

Abstract

We are like explorers in a maze, and may encounter difficulties on the path forward.

The power of backtracking allows us to start over, keep trying, and eventually find the exit leading to light.

## Chapter contents

- 13.1 Backtracking Algorithm
- 13.2 Permutations Problem
- 13.3 Subset-Sum Problem
- 13.4 N-Queens Problem
- 13.5 Summary
- 13.6 Exercises

##### Feel free to drop your insights, questions or suggestions