BlockSlide is a sliding block puzzle consisting of 20 puzzles of varying levels of difficulty. The first few puzzles can be solved in minutes, whereas the later puzzles may take hours or even days to solve. The objective of each puzzle is to slide the blocks into the goal configuration. This typically involves moving the largest block to a particular location. Blockslide records the lowest number of moves achieved for solving each puzzle. This program includes support for both color and grayscale systems. Operating system: Palm OS 3.5 or higher