Sliding Blocks of Huarong Wooden Puzzle

The characters on the blocks are from one of the most legendary battles in Chinese history, the Battle of the Red Cliffs. The biggest block represents the fearsome Chinese warlord Cao as he flees through Huarong Pass after his defeat. The other blocks represent the battling Chinese soldiers and the board is the battlefield. Help Cao escape through the Huarong Pass by sliding him across the board and out through the step at the bottom – it can’t be done in less than 84 moves!