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