I have the lower problem rows sorted, but am struggling with the upper. I can't make any sense of 1D (though I have all the other downs, so I know which way the letter has to move: which ought to help but it doesn't). My understanding of the upper affliction means that a particular letter ought to be added, but that rather mars the "real words" aspect. Luckily I'm old enough to be (just) familiar with the instruction!