Yes, from the OCD school of solving this was a bear. I solved on paper and saw nothing. "I must have something wrong", said I, and proceeded to go to Crosshare and hit Reveal. Well THAT didn't help, and of course once done it could not be undone. I assume from the discussion that if you went to Crosshare and filled the puzzle out the program would tell you that you were done but had some mistakes and when you went to check it would leave only the "matching" letters alone. CLEVER idea but the cleverness was lost on us "solve on paper first" folks (or maybe just me). Here is where MY deviousness paid off. Because of ROTTEN TRICK I thought, "maybe it is a ROT code. Of course that hope was deflated when the letters in the machine solve did not match the pattern in the paper solve. BUT, some letters were the same in both....I wonder. After I got SUPERCAL I knew what it had to be. Clever and particularly devious puzzle Ben, Congrats.