777 Tamond Apin

"This is a classic math puzzle for those who like to play with numbers. Number Puzzle - Classic Number Game - Number Riddle allows you to enjoy the magic of numbers and requires your concentration and coordination of your hands, eyes and brain.

How to play number puzzle?
Given a framed wooden block figure, one of the tiles is missing. All you have to do is tap and slide the number blocks. Your goal is to sort the numbers in ascending order. How many steps can you complete the number puzzle? "