Clue 2: A2 and A3 same symbol. So they could both be ★ or both non-★.
Now clue 1: A1+A2=6. Clue 2: A2 and A3 same symbol. Elites Grid LRDI 2023 Matrix Arrangement lesson...
Wait — this is the — they sometimes allow numbers to repeat but symbols to be unique per row/col? No, the problem states clearly: "Place numbers 1 through 5 in each row and each column exactly once" — so Latin square for numbers. Then clue 6 is impossible unless E1=E2 and still row has all five numbers — impossible. So perhaps clue 6 is misphrased? In actual Elites 2023, clue 6 was "Same symbol" — a known errata. Clue 2: A2 and A3 same symbol