1. I don’t agree in step number 7 because at that moment you don’t know if the diagonal (A5-E1) or the column (C1-C5) are the ones that contain letters.

    • If the letters were in the column, that would mean there would be no numbers in that column, which could not fulfill the clue in D4.

    • The clue in B2 says that no letter or number is in the name of its cell. For all 5 letters to be in column C, this rule will be violated as C will be in a cell which has ‘C’ in its name.

    • D4 clue requires each row and column to have exactly one number — that should be clarified in the solution, as it leads to the diagonal being the only option for the five letters.

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