1 | The Word Break Problem | Expert |

2 | Print All The Permutations Of a String | Expert |

3 | Knight’s Tour Problem | Expert |

4 | Search a Word In a Matrix | Expert |

5 | N Queens Problem — Better Solution | Expert |

6 | N Queens Problem | Expert |

7 | Rat In A Maze Puzzle | Expert |

8 | SUDOKU Solver | Expert |

9 | Introduction To Backtracking Programming | Easy |