The game uses a square board measuring 8 by 8 cells and 64 special chips, painted white and black on different sides. One player plays white, the other plays black. When making a move, a player places a chip on a cell of the board with "his" color. At the beginning of the game, 4 chips are placed in the center of the board: two black and two white. The first move is made by black. Then the players move in turns.
The game can be played with artificial intelligence, with another person on one device, or with an opponent online in multiplayer mode.
When making a move, a player places his piece on one of the squares of the board in such a way that between this placed piece and one of the pieces of his color already on the board there is a continuous row of the opponent's pieces, horizontal, vertical or diagonal, so that the continuous row of the opponent's pieces is "closed" by the player's pieces on both sides. All the opponent's pieces that are part of the "closed" row on this move are turned over to the other side and go to the player who made the move.
If as a result of one move more than one row of the opponent's pieces is "closed" at the same time, then all the pieces that are on those "closed" rows that go from the placed piece are turned over.
The game ends when all the pieces are placed on the board or when neither player can make a move. The player with the most pieces on the board wins. Reversi, Othello, board game, strategy game, rules, tactics, how to play, black and white, cognitive skills, online multiplayer, AI, turn-based, game guide, board game rules