| 36. Valid Sudoku | | | Solve | Medium | | |
| 48. Rotate Image | | | Solve | Medium | | |
| 54. Spiral Matrix | | | Solve | Medium | | |
| 59. Spiral Matrix II | | | Solve | Medium | | |
| 63. Unique Paths II | | | Solve | Medium | | |
| 64. Minimum Path Sum | | | Solve | Medium | | |
| 73. Set Matrix Zeroes | | | Solve | Medium | | |
| 74. Search a 2D Matrix | | | Solve | Medium | | |
| 79. Word Search | | | Solve | Medium | | |
| 130. Surrounded Regions | | | Solve | Medium | | |
| 200. Number of Islands | | | Solve | Medium | | |
| 221. Maximal Square | | | Solve | Medium | | |
| 240. Search a 2D Matrix II | | | Solve | Medium | | |
| 286. Walls and Gates | | | Solve | Medium | | |
| 289. Game of Life | | | Solve | Medium | | |
| 304. Range Sum Query 2D - Immutable | | | Solve | Medium | | |
| 308. Range Sum Query 2D - Mutable | | | Solve | Medium | | |
| 311. Sparse Matrix Multiplication | | | Solve | Medium | | |
| 348. Design Tic-Tac-Toe | | | Solve | Medium | | |
| 361. Bomb Enemy | | | Solve | Medium | | |
| 378. Kth Smallest Element in a Sorted Matrix | | | Solve | Medium | | |
| 417. Pacific Atlantic Water Flow | | | Solve | Medium | | |
| 419. Battleships in a Board | | | Solve | Medium | | |
| 427. Construct Quad Tree | | | Solve | Medium | | |
| 490. The Maze | | | Solve | Medium | | |
| 498. Diagonal Traverse | | | Solve | Medium | | |
| 505. The Maze II | | | Solve | Medium | | |
| 529. Minesweeper | | | Solve | Medium | | |
| 531. Lonely Pixel I | | | Solve | Medium | | |
| 533. Lonely Pixel II | | | Solve | Medium | | |
| 542. 01 Matrix | | | Solve | Medium | | |
| 562. Longest Line of Consecutive One in Matrix | | | Solve | Medium | | |
| 695. Max Area of Island | | | Solve | Medium | | |
| 723. Candy Crush | | | Solve | Medium | | |
| 750. Number Of Corner Rectangles | | | Solve | Medium | | |
| 794. Valid Tic-Tac-Toe State | | | Solve | Medium | | |
| 807. Max Increase to Keep City Skyline | | | Solve | Medium | | |
| 835. Image Overlap | | | Solve | Medium | | |
| 840. Magic Squares In Grid | | | Solve | Medium | | |
| 861. Score After Flipping Matrix | | | Solve | Medium | | |
| 885. Spiral Matrix III | | | Solve | Medium | | |
| 909. Snakes and Ladders | | | Solve | Medium | | |
| 931. Minimum Falling Path Sum | | | Solve | Medium | | |
| 934. Shortest Bridge | | | Solve | Medium | | |
| 959. Regions Cut By Slashes | | | Solve | Medium | | |
| 994. Rotting Oranges | | | Solve | Medium | | |
| 1020. Number of Enclaves | | | Solve | Medium | | |
| 1034. Coloring A Border | | | Solve | Medium | | |
| 1072. Flip Columns For Maximum Number of Equal Rows | | | Solve | Medium | - | |
| 1091. Shortest Path in Binary Matrix | | | Solve | Medium | | |
