Reversi: Online Board Game

Let's remember the good old days of childhood through the classic board game of Reversi! In this game, an 8x8 grid board and 64 two-sided pieces will be used. Each of the pieces has a side in black color and the other in white. Your goal is to finish the game with more pieces flipped to the side of your representing color rather than that of the computer. When the game begins, either black or white is randomly assigned to each player, and 2 pieces of each side are placed in the middle of the 4th and 5th rows on the board. Black always moves first and the players will take turns to place pieces onto the board. 
A player must capture at least one opponent piece, or the player has to skip the turn. To capture the opponent's pieces, a player should place a piece onto the board such that it aligns horizontally, vertically, or diagonally with other pieces of his own without any spaces in between, while at least one of the opponent's pieces is completely surrounded by them on the line. All pieces of the opponent that are trapped by the player's pieces as a result of the move will be turned over and become the player's pieces. The scoreboard on the left of the screen shows each side's current number of pieces. During a player's turn, he must finish his moves within the given time limit, as indicated by the timer on the screen, or he will lose. The game ends when both players are not able to make any more moves, and the player with the most pieces flipped to his side wins.