The sibling comment pointed it out; MAMMA is revealed with one yellow A and one grey A, meaning it has told you there's only one A. If the answer was AORTA, then both As in MAMMA would be yellow.
reply> If the answer was AORTA, then both As in MAMMA would be yellow
replyWhy would the last A be yellow and not green? It's the correct letter in the correct location. MAMMA should be gray, yellow, gray, gray, green.
Oops, yes. In that case, if the answer was AGAIN, both As in MAMMA would be yellow (as opposed to one yellow one grey)
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