Results from Ancestry show that I share 2183 centimorgans with a complete stranger who is my age.
- 1450-2050 centimorgans = grandpa, uncle, half-brother
- 2400-2800 centimorgans = brother
I wonder if the fact that we share so many centimorgans (somewhere between the two above categories) makes it less likely that he is my uncle and more likely that he is my half-brother. Or how should I interpret an amount of centimorgans which is between the two ranges?
If I understand correctly, the figure below leaves little room for interpretation that we are half-siblings — but I’m no expert and don’t want to get too far ahead of myself.