HomeCiphers › Homophonic Substitution

Homophonic Substitution

Common letters get several symbols each, so counting them tells a code-breaker nothing.

Rail Fence

Press Run it to start the machine.
0 / 0
Result

How it works

The story

Crack these

← Bifid All the ciphers Code Words →

Take it off the screen

Print this page and you get a worksheet: how the cipher works, where it came from, and the puzzles to crack, with the machine and the menus left off.

Print this page as a worksheet Try the challenges

Read more elsewhere

Longer, harder and written for grown-ups. Worth a look when this page runs out.

Substitution ciphers