Starts a new game (and abandons the current, if any.)

Pause or continue the current game.

Note that the interaction results are hidden in a paused game.

Show the high score tables.

Start the tutorial of the game. This is a user friendly way to learn the game rules.

In this mode, the solution is displayed at the start of the game. This is useful to understand the game principles.

This closes the window and quits KBlackBox.