I had my DNA tested through Ancestry.com. My closest match shares 2041cm.

Is it safe to say this is probably a half-sibling?

Are other ways of confirming this relationship?

  • dnapainter.com/tools/sharedcmv4/2041 suggests half-sibling likely but age difference between you and your match may help rule out other possibilities suggested there. A full sibling is not ruled out either.
    – PolyGeo
    Mar 21 at 21:24