> PUZZLE BROWSER :: 91 CIPHER TYPES
Each row is a cipher type. Each column is a difficulty level from 1 (easiest) to 7 (hardest). Filled boxes mean puzzles are available in the pool — click to claim one.
| type | 1 | 2 | 3 | 4 | 5 | 6 | 7 | solve | answer | rating |
|---|---|---|---|---|---|---|---|---|---|---|
| Aes | — | — | 3 | simulate | hex | |||||
| Atbash | 3 | — | — | mixed | word | |||||
| Base64 | 3 | 3 | — | decode | word | |||||
| Basel Problem | — | — | 3 | 3 | compute | 1 letter | ||||
| BB84 | 3 | 2 | 3 | reason | word | |||||
| Bezier | 3 | 3 | — | — | 3 | compute | numbers | |||
| Birthday Paradox | 1 | 3 | 3 | reason | 1 letter | |||||
| Bombe | — | 3 | 3 | reasoning | word | |||||
| Boolean Matrix | 3 | 2 | — | reason | binary | |||||
| Caesar | 1 | 3 | 3 | brute-force | word | |||||
| Chime | 3 | 3 | 3 | simulate | 1 letter | |||||
| Chinese Remainder | — | 1 | — | compute | 1 letter | |||||
| Collatz | — | — | 3 | compute | numbers | |||||
| Columnar | — | 3 | — | mixed | word | |||||
| Compression | — | — | — | 3 | analyze | word | ||||
| Crypto1 | — | 1 | — | reasoning | word | |||||
| Cylinder | 3 | 3 | 3 | reason | word | |||||
| Des | — | 2 | — | simulate | word | |||||
| Diffie Hellman | 3 | 3 | 3 | compute | numbers | |||||
| Dna Sequencing | 3 | 3 | 2 | analyze | word | |||||
| Eigenvector | — | — | 2 | 3 | 3 | — | compute | numbers | ||
| Elastic | 2 | 3 | 2 | simulate | lowercase decoded message | |||||
| Elliptic Curve | 3 | 3 | 3 | compute | numbers | |||||
| Elliptical | 3 | — | 3 | compute | lowercase decoded message | |||||
| Emv | — | — | 3 | simulate | hex | |||||
| Enigma | 3 | 3 | 2 | 3 | 3 | — | reason | lowercase decoded message, | ||
| Euclidean Algorithm | — | — | — | compute | 1 letter | |||||
| Eulerian Path | 3 | — | — | reason | 4-6 letters | |||||
| Eulers Formula | 2 | 3 | 3 | 3 | reason | 3-5 letters | ||||
| FFT | 2 | 3 | 3 | 2 | 3 | compute | numbers | |||
| Fhss | 3 | 2 | — | simulate | word | |||||
| Fingerprint | 3 | 2 | 3 | analyze | exact decimal match | |||||
| Flux | 3 | 3 | 3 | simulate | 1 letter | |||||
| Four Color | 3 | — | — | reasoning | color label (e.g., | |||||
| Gabor Wavelet | 2 | — | — | analyze | frequency in Hz | |||||
| Galton | 3 | 3 | 2 | simulate | numbers | |||||
| Game Of Life | 3 | 1 | 3 | — | simulate | 6 letters | ||||
| Goldbach | — | 3 | 3 | compute | prime sum (e.g., | |||||
| Gravitational Warp | 2 | — | 2 | compute | word | |||||
| Hamming | 3 | 3 | — | compute | word | |||||
| Handshake Lemma | 3 | 3 | 3 | reason | 1 letter | |||||
| Hash Prefix | 3 | 2 | — | — | compute | any string whose | ||||
| Heat Equation | 3 | 3 | 3 | simulate | word | |||||
| Hex | 3 | 2 | 3 | decode | word | |||||
| Hydraulic | 2 | 3 | — | simulate | word | |||||
| Iris | 3 | — | 3 | analyze | exact decimal Hamming | |||||
| Lattice | 3 | 2 | 3 | 3 | reason | numbers | ||||
| Ldpc | — | 3 | — | compute | word | |||||
| Lensing | 3 | 3 | 3 | 3 | 3 | — | 3 | compute | lowercase decoded message | |
| LIGO | 3 | 3 | — | analyze | word | |||||
| Logic Gate | 3 | — | 3 | reason | binary | |||||
| Logistic Map | 3 | — | 3 | — | simulate | 1 letter | ||||
| Luhn | 3 | — | 3 | compute | 1 letter | |||||
| LWE | 2 | 2 | 3 | reason | short lowercase string | |||||
| Mandelbrot | 3 | 2 | 3 | compute | 3-7 letters | |||||
| Merkle | 3 | 3 | — | reason | hex | |||||
| Mirror | 3 | 3 | 3 | compute | lowercase decoded message, | |||||
| Monty Hall | 3 | 3 | 3 | 2 | reason | 1 letter | ||||
| Newtons Cradle | — | 2 | 3 | simulate | numbers | |||||
| NURMS | 3 | 3 | 3 | compute | numbers | |||||
| Oracle | 3 | 3 | 3 | — | 3 | — | 2 | reason | numbers | |
| Pagerank | — | 1 | 3 | compute | word | |||||
| Parallax | 1 | 2 | — | compute | numbers | |||||
| Pem Certificate | — | — | — | reasoning | lowercase string matching | |||||
| Pgp | — | — | 3 | — | — | 3 | — | mixed | 1 letter | |
| Phone Tone | — | — | — | decode | word | |||||
| Pigeonhole | — | — | — | reason | 1 letter | |||||
| Plain Sight | — | — | 3 | mixed | word | |||||
| Plumb | 1 | 3 | 2 | simulate | word | |||||
| Prism Refraction | 3 | — | 3 | compute | lowercase decoded message | |||||
| Protein Folding | — | — | — | simulate | word | |||||
| Quantum | 3 | 1 | 1 | reason | lowercase decoded message | |||||
| Reed Solomon | — | — | — | compute | word | |||||
| Resonant Cascade | — | — | 3 | mixed | word | |||||
| Rsa | 3 | — | — | compute | word | |||||
| Runes | — | 3 | — | decode | word | |||||
| Scrollfall | 3 | 3 | 3 | simulate | lowercase decoded message | |||||
| Scytale | 3 | 1 | 2 | reason | lowercase decoded message, | |||||
| Shamir | 3 | 3 | 2 | reason | numbers | |||||
| Shannon Entropy | — | 3 | 3 | compute | float between 0 | |||||
| Spacetime Causality | — | — | — | 2 | simulate | word | ||||
| Spectral Glass | 3 | 3 | 3 | analyze | 1 letter | |||||
| Spore | 1 | 2 | 3 | simulate | lowercase decoded message | |||||
| Terrain | — | — | — | — | — | — | simulate | numbers | ||
| Tls Handshake | 2 | 3 | — | simulate | hex | |||||
| Tower Of Hanoi | — | 3 | 2 | — | reason | 1 letter | ||||
| Vigenere | 3 | 3 | 3 | 3 | brute-force | word | ||||
| Viterbi | — | — | 3 | compute | word | |||||
| Watershed | 3 | — | — | simulate | word | |||||
| Wave Superposition | 3 | — | — | compute | 1 letter | |||||
| Wireguard | — | 3 | — | simulate | hex | |||||
| XOR | 3 | 2 | 3 | — | decode | word |