Here is a chart using My Results-Ancestry Tools-Family Inheritance: Advanced from 23andme. This displays the places on my chromosomes where my two 1st cousins and a 3rd cousin match me. Note that there are significant parts of the chromosomes with no match.
First cousins should share 12.5% and a third cousin should share 3.125% of their genomes. I share 17.9%, 15.9%, and 3.05% respectively. I am related on both my paternal and maternal lines with the first 1st cousin and the 3rd cousin. The second 1st cousin is related only through my maternal line.