How to Solve Cryptograms

1. Start with the Easiest Wins: Word Length

Single-Letter Words

In English, there are only two one-letter words: A and I.

If your puzzle contains a one-letter word, you’ve immediately narrowed it to one of those two.

Two-Letter Words

Two-letter words are powerful clues. The most common are:

OF, TO, IN, IT, IS, AS, AT, BE, WE, HE, SO, ON, AN

Short words appear frequently in English, so cracking even one unlocks multiple letters.

2. Use Frequency Analysis

English has predictable letter patterns. The most common letters are:

E, T, A, O, I, N, S, H, R

If one cipher letter appears more often than any other, test it as E first.

Why?

E is the most common letter in English.

It frequently appears at the end of words.

It often forms double letters (EE).

Frequency analysis is the same basic principle used to crack historical ciphers for centuries.

3. Look for Patterns

Patterns reveal structure.

Double Letters

Common double letters include:

EE  LL  SS  OO  TT

If you see a pair like “QQ” or “ZZ” in the cipher, consider whether it might represent one of these.

4. Apostrophes Are Gold

Apostrophes narrow options dramatically. Examples:

• IT’S

• DON’T

• CAN’T

• I’M

• WE’RE

• THEY’RE

If you see a pattern like: X’Y

It is often: I’M  I’D  I’LL

Longer contractions are even easier to recognize once a few letters are solved.

5. Analyze Word Endings

English has common suffixes:

• ING

• ED

• ER

• EST

• TION

• LY

• MENT

If you identify -ING, you immediately gain three letters at once.

6. Respect the Rule: One Letter = One Letter

Never assign:

• Two plaintext letters to one cipher letter

• One plaintext letter to two cipher letters

Each mapping must remain consistent throughout the entire puzzle.

If a guess breaks consistency, erase and revise.

8. Guess — But Verify

Cryptograms are solved through educated guessing.

Process:

- Make a reasonable guess.

- Fill in every instance of that letter.

- Look for newly forming words.

- Confirm or reject.

Wrong guesses are part of the process. Erase confidently.

9. Work From the Outside In

Often easier:

• Solve short, common words first.

• Use them to unlock longer words.

• Then confirm structure.

Long unfamiliar words are harder without context.

10. Track Your Progress Carefully

Use:

• Pencil (so you can erase)

• A substitution chart (A → ?, B → ?, etc.)

• Or a digital tool that updates letters globally

Staying organized prevents contradiction errors.

Advanced Tips (For Faster Solving)

Identify Repeating Word Patterns

If a five-letter word appears twice, it’s likely important.

Watch for Common Letter Pairings

TH  HE  ER  RE  ON  AN

Avoid Tunnel Vision

If stuck:

• Re-check earlier guesses.

• Remove assumptions.

• Try a different high-frequency letter.