Tengo Game

We invented this little online puzzle game called Tengo. Simple but surprisingly challenging.
Well actually it can drive you mad! Unless you become good at it...

The game is played on a square of 16 tiles. You will be given sixteen numbers to place on the tiles. Put the numbers in rows, in a way that each row adds up 10.
The rows can be horizontal, vertical and diagonal.There are three tiles that can be used as parking spaces. Notice that you don’t have to use all numbers.

Now good luck, and enjoy the game.