UDLR Sliding puzzles

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!