Fill
in the matrix so that every row, every column, and every 3x3 box, contains the
letters C H R I S T M A S &
E. This also means that no repetition of
letters is
allowed in each column, row, or 3X3 box.
I hope that posterity will judge me kindly,
not only as to the things which I have explained, but also to those which
I have intentionally omitted so as to leave to others the pleasure of
discovery.