Protect It: Surround the Thief description

Surround the thief trying to steal diamonds!
The thief approach as short as possible, so keep him away.

This game has various skins.
mouse & cheese, bear & honey, vampire & sun, bird & insect, and so on.
Enjoy changing skins and themes to customise!

If it is difficult to solve the puzzle, you can take hint.
Sometimes, there are 3 thieves in the stage.
You will clear the stage at least 1 thief.
Can you surround all of the thieves?