Othello

Othello is a kind of black-white chess game for two players. In this app, the other player is phone AI.
Othello is played on 8 x 8 squared board.

Start:
+ When new game begins, each player places two discs (Black chess vs White chess) on the board.
+ The discs should be placed on the board's four central squares.

Move:
+ A player places a disc in a vacant square so that in at least one direction (vertically, horizontally, or diagonally) his newly-placed disc,
acting in conjunction with a pre-existing disc of his own color, brackets in an unbroken line one or more discs of his opponent's color.
The disc or discs thus bracketed are then turned over or “flipped” to become the same color as the newly-placed disc.
If a newly-placed disc produces bracketing in several directions at once, then all the bracketed discs in all such directions are flipped.
+ Take turns to play a piece
+ A player without a move simply passes, and the other player keeps playing pieces until the first player can make a move again.
+ The objective is to have more of your colour face upwards at the end of the game.
+ The game is over when neither player has a legal move or when the board is full.

Level:
+ Select difficulty between 1 to 8.

Chess Move hint:
+ Click bottom hint button

Top info area:
+ Top bar shows black chess and white chess numbers
+ Top center is game level
+ Click empty ground to set title background color

Score board:
+ The time left before the deadline

Setting:
+ Move first choose: black or white
+ Game theme, change chess board color, operate button color, game background color.