Letter
Pairs Help Tool
The
table shows the number of occurrences in the ciphertext of each possible pair
of letters. The number of each square indicates how many times the letter heading
the column is followed by the letter at the start of the row. The
most common letter pairs (digraphs) in the ciphertext may represent the most common
digraphs in English, which are TH, ER, ON, AN, RE, HE, IN, ED, ND, HA.
Clicking
on the Asymmetry button will help you identify which digraph represents
HE.