Riversi is an ancient game. The Riversi rules are fairly simple but lead to a great many combinations and strategic decisions. You have to place your piece on the free game field cell so that it reverses (changes the color of) at least one opponent piece. The game is finished when neither of the players has any possible moves. The winner is the person who has the most pieces of his or her own color at the end of the game. The game is interesting enough, so loose no chance to play it now!