Updated Contents: [~] rewrite the whole game system to improve performance & reduce bugs. [~] fix bug for multiple display with different orientations. [~] fix bug for new player may not update their high scores. [+] add endless game mode and corresponding high score rank. [+] add redo function to recover undo moves without penalty, and now combo will only be cleared when different move is taken after undo. [+] add game stats splash display with option to switch it off. [+] add switch to turn off unimportant in-game notifications. [+] add boss mode, you can play game safely when boss is near you. If you have any suggestions or issues, please comment at here or email us via info@idea4.fun!

Boss Mode

In boss mode, your game window will dock at the right bottom corner, when your cursor moved out of the game window, an advertisement look with a close button appears like this:
Only if you click the grey button with text 'Try 30 days for free!', the normal game content will appear again, like this:
If you click the 'X' button of the advertisement page, the game will be closed.

Endless Mode

When you try to start a new game, you can choose to start an endless game other than a classic one. The difference is, an endless game will only end when all the cards in the pile at bottom right corner are placed on the table. If you start a new game before the game is end, your score will not be recorded!!! You can get unlimited high score in an endless game!