Implemented simple (and limited) tournament mode. This mode disables AI tools, so they cannot be used accidentally. Mode can be set in settings. Better interface for the mode will be created later.
dialog_interrupt
Cancel for interrupting ongoing processing (without OK alternative)
Go is usually played in a 19 by 19 board, but smaller boards are better for learning the game. 9 by 9 is the best board to start with. Diagram shows 9x9 board with first three stones played.
In an even game white gets 6.5 extra points to compensate black's right to start the game. If black player is less skilled than white, a handicap can be used to make the game interesting. Black player may get 2 to 9 handicap stones at the start of the game. In a handicap game white gets 0.5 extra points (komi).