🧠 Top 10 Backtracking Problems (with Levels)

🔢 No. 🧩 Problem Name 🎯 Level 🧾 Description
1️⃣ Subsets (Power Set) Easy Generate all subsets of an array.
2️⃣ Permutations of Array Easy-Medium All possible orderings of elements.
3️⃣ Combination Sum Medium Choose elements to get a given sum (multiple use allowed).
4️⃣ Combination Sum II Medium Like above, but no duplicate combinations (each element once).
5️⃣ Palindrome Partitioning Medium Break a string into all palindromic parts.
6️⃣ N-Queens Problem Medium-Hard Place N queens safely on N×N board.
7️⃣ Rat in a Maze Medium Find all paths in a maze from start to end.
8️⃣ Word Search (Matrix) Medium Search a word in a grid (using backtracking).
9️⃣ Sudoku Solver Hard Fill sudoku board using valid numbers.
🔟 Knight’s Tour Very Hard Move knight so it visits every cell once.