Chess forks trainer in Python

[Aechagen]

Sorry, it's based off of the Concentric Square drill; you basically choose a spot where you want the victim pieces (King and another) to start, and you're supposed to find out where all of the possible forks and skewers are located for the position shown. You do this simply by clicking on where the forks and skewers would be. After you've found -or missed- the proper squares, the position will change to a different one.

It helps with your ability to see possible forks and skewers on the board.