Headline Puzzles

Slidable Alphabet from two 13-link chains when there is a headline with a shift of 13.

Directions: Paste 13 link chains into boxes. Enter two letters that connect the chains under a 13-shift. Click button.

Chain 1:

Chain 2:

Under a shift of 13, the letter from chain 1 goes to the letter from chain 2.

Slidable Alphabet:

(See SO 2012 Cryptogram.)