UDLR is a collection of sliding puzzles.

Currently it includes the following games:
- Number puzzle (Upgraded version of 15 puzzle)
- Classic mode
- Snake mode
- Spiral mode
- Picture puzzle
- Klotski
- Rush Hour
- 2048

How to play:
- Number puzzle and Picture puzzle:
Tap or slide a tile to move it, and any other tile that between the blank tile and the touched tile will be moved together

- Klotski and Rush Hour:
Slide a tile to move it

- 2048:
Move all tiles by sliding in different directions

Enjoy the games!