public void Winner()
        {
            var board = new Player[100];

            board[22] = board[33] = board[44] = board[55] = Player.Own;
            var offset = new DirectionOffset(10);
            var table  = new AdjacentInfoTable(board, offset);

            table.PlaceChessPiece(66, Player.Own);

            Assert.Equal(Player.Own, table.Winner);

            table.TakeBack(66, Player.Own);
            Assert.Equal(Player.Empty, table.Winner);
        }