Straddling Code
This page defines a Straddling Cipher. First we put some numbers in the top row, followed by the common letters arranged randomly in the second row, and so on [Theory]:
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
E | T | A | O | N | R | I | S | |||
2 | B | C | D | F | G | H | J | K | L | M |
6 | P | Q | / | U | V | W | X | Y | Z | . |