Blocks is a classic and addictive puzzle game. Slide the orange block off the board by sliding the other blocks out of its way. The horizontal blocks only move left and right, while the vertical blocks slide up and down. Solving the puzzles can be very tricky, but don't worry, the first ones are easy and will get you going quickly.
Once you complete all the puzzles in a difficulty level, the next level will be unlocked. There are 100 puzzles in four difficulty levels, which should keep you occupied for quite a while.