seed viability

just by looking at this photo is it possible and can anyone on here tell the viability or these seeds like which ones look most likely and which ones look least likely to grow they are from different seed stock i have to me the middle 4 look less likely as they are smaller darker and shiny with hardly any markings

They all look like they will grow to me, if they crack in between two fingers then they are bad and will not germinate, those all look good, I do like the four in the middle and the large end one, but I have popped worse looking seeds LOL.
MD

After trying to get 100s of old seeds to sprout and ending up with only 3 doing so, I found there's really nothing about how they look (other than obvious things like cracked, smashed, etc.) that's predictive. Darker didn't mean anything. Size didn't mean anything. Those all look viable to me.