This is what the letter strings would look like if you added KRYPTOS, SANBORN and SCHEIDT back into K4 of Kryptos when it was split by double letters.
I’m mostly looking at the number of Z’s, X’s and Q’s to gauge relative similarity to plaintext frequencies. We can count by hand or run through a program but it should be pretty visible that these are not plaintext frequencies.
Tagged: double letters, k4, kryptos, subtractive, superencipherment
