The
Snake
hole will go live in approximately
20 hours
. Why not try and solve it ahead of time?
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brainfuck
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Catalan’s Constant
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Collatz
Connect Four
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CSS Colors
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Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Gray Code Decoder
Gray Code Encoder
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Nim
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars GPT
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
Ulam Sequence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Binary Lambda Calculus
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
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Rectangle Fill
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Snake
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Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
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><>
ALGOL 68
ArkScript
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
Erlang
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
Groovy
Haskell
Hexagony
iogii
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
Scheme
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Experimental Language
05AB1E
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
ZuzuScript
Hole
All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Chess Move Validation
Christmas Trees
Collatz
Connect Four
Continued Fractions
CSS Colors
Cubes
Day of Week
DFA Simulator
Diamonds
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
Forsyth–Edwards Notation
Fractions
Game of Life
Gijswijt’s Sequence
Gray Code Decoder
Gray Code Encoder
Happy Numbers
Happy Numbers (Long)
Hexdump
Hilbert Curve
Intersection
Inventory Sequence
ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
Lucky Numbers
Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Nim
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
PalindromemordnilaP
Pangram Grep
Partition Numbers
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
Polyominoes
Prime Numbers
Prime Numbers (Long)
Proximity Grid
QR Decoder
Quine
Recamán
Repeating Decimals
Reverse Polish Notation
Reversi
Rijndael S-box
Rock-paper-scissors-Spock-lizard
Roman to Arabic
ROT13
Rule 110
Scrambled Sort
Set
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars GPT
Star Wars Opening Crawl
Sudoku
Sudoku (Fill-in)
Taxicab Numbers
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
Ulam Sequence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Binary Lambda Calculus
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
Hole
Golfer
Chars
Time
Submitted
Chess Move Validation
JOrE20
💎
790
5ms
42 hours ago
Abundant Numbers
JOrE20
460
1ms
3 days ago
Abundant Numbers
Edjyzod
628
1ms
3 days ago
Zeckendorf Representation
JOrE20
🥈
10,740
11ms
3 days ago
Time Distance
JOrE20
🥈
72,266
23ms
5 days ago
Reversi
JOrE20
🥈
20,516
15ms
6 days ago
Repeating Decimals
JOrE20
🥈
69,939
25ms
6 days ago
Mahjong
JOrE20
🥈
25,181
9ms
6 days ago
Minesweeper
JOrE20
🥈
10,214
38ms
6 days ago
DFA Simulator
JOrE20
🥈
55,419
57ms
6 days ago
Scrambled Sort
JOrE20
🥈
24,992
12ms
6 days ago
Set
JOrE20
🥈
28,762
31ms
6 days ago
Star Wars GPT
JOrE20
🥈
70,178
190ms
6 days ago
Topological Sort
JOrE20
🥈
22,308
15ms
6 days ago
γ
JOrE20
2,496
2ms
8 days ago
Thue–Morse Constant
JOrE20
2,490
2ms
8 days ago
Continued Fractions
JOrE20
🥈
6,894
3ms
8 days ago
Nim
JOrE20
🥈
42,363
3ms
8 days ago
Gray Code Decoder
JOrE20
🥈
17,354
44ms
8 days ago
Gray Code Encoder
JOrE20
🥈
32,970
74ms
8 days ago
Fibonacci
JOrE20
390
1ms
11 days ago
Pernicious Numbers
JOrE20
297
1ms
11 days ago
Dragon Curve
JOrE20
19,244
7ms
11 days ago
Apéry’s Constant
JOrE20
2,498
2ms
11 days ago
Odious Numbers
JOrE20
230
1ms
11 days ago
Evil Numbers
JOrE20
226
1ms
11 days ago
Alphabetic Numbers
JOrE20
🥈
9,915
3ms
11 days ago
Ascending Primes
JOrE20
🥉
1,430
2ms
11 days ago
Hilbert Curve
JOrE20
🥈
14,837
4ms
11 days ago
ln 2
JOrE20
🥉
2,535
2ms
11 days ago
Kolakoski Constant
JOrE20
2,532
2ms
11 days ago
λ
JOrE20
2,502
2ms
11 days ago
√2
JOrE20
2,555
2ms
11 days ago
Catalan’s Constant
JOrE20
2,538
2ms
11 days ago
𝑒
JOrE20
2,534
2ms
11 days ago
φ
JOrE20
2,455
2ms
11 days ago
τ
JOrE20
2,522
2ms
11 days ago
π
JOrE20
2,515
2ms
11 days ago
brainfuck
christos-cantina-security
2,113
8ms
14 days ago
Fibonacci
christos-cantina-security
6,201
2ms
14 days ago
Alphabetic Numbers
HumanoidCPU
11,549
4ms
15 days ago
Thue–Morse Constant
canissimia
132
292ms
20 days ago
Tutorial
retrohun
185
2ms
21 days ago
Cubes
HumanoidCPU
8,457
4ms
26 days ago
N Queens
HumanoidCPU
4,582
3ms
26 days ago
Polyominoes
HumanoidCPU
6,421
4ms
26 days ago
Fizz Buzz
HumanoidCPU
1,545
2ms
26 days ago
Factorial Factorisation
HumanoidCPU
2,913
2ms
26 days ago
Diamonds
HumanoidCPU
1,863
2ms
26 days ago
𝑒
HumanoidCPU
2,926
2ms
26 days ago
Number Spiral
HumanoidCPU
1,032
2ms
26 days ago
Emirp Numbers (Long)
HumanoidCPU
3,416
2ms
26 days ago
ASCII Table
HumanoidCPU
1,491
2ms
26 days ago
Sierpiński Triangle
HumanoidCPU
1,143
2ms
26 days ago
π
HumanoidCPU
2,951
2ms
26 days ago
τ
HumanoidCPU
2,928
2ms
26 days ago
Rule 110
HumanoidCPU
29,769
12ms
26 days ago
Tower of Hanoi
HumanoidCPU
10,097
3ms
26 days ago
Happy Numbers (Long)
HumanoidCPU
1,635
2ms
26 days ago
Christmas Trees
HumanoidCPU
769
2ms
26 days ago
99 Bottles of Beer
HumanoidCPU
49,691
10ms
26 days ago
12 Days of Christmas
HumanoidCPU
11,663
3ms
26 days ago
Foo Fizz Buzz Bar
HumanoidCPU
19,138
5ms
26 days ago
Partition Numbers
HumanoidCPU
2,021
2ms
26 days ago
Kolakoski Sequence
HumanoidCPU
4,033
3ms
26 days ago
Ascending Primes
HumanoidCPU
1,512
2ms
26 days ago
Catalan’s Constant
HumanoidCPU
2,887
2ms
26 days ago
Odious Numbers (Long)
HumanoidCPU
5,568
3ms
26 days ago
Evil Numbers (Long)
HumanoidCPU
5,568
3ms
26 days ago
Collatz
HumanoidCPU
8,761
3ms
26 days ago
Mandelbrot
HumanoidCPU
25,500
8ms
26 days ago
Abundant Numbers
HumanoidCPU
508
2ms
26 days ago
Hilbert Curve
HumanoidCPU
16,498
4ms
26 days ago
λ
HumanoidCPU
2,975
2ms
26 days ago
Inventory Sequence
HumanoidCPU
7,353
3ms
26 days ago
Kaprekar Numbers
HumanoidCPU
1,341
2ms
26 days ago
Pernicious Numbers
HumanoidCPU
308
1ms
26 days ago
Prime Numbers
HumanoidCPU
221
2ms
26 days ago
Emirp Numbers
JOrE20
431
2ms
26 days ago
Van Eck Sequence
HumanoidCPU
7,148
3ms
26 days ago
γ
HumanoidCPU
2,995
2ms
26 days ago
Trinomial Triangle
HumanoidCPU
7,326
3ms
26 days ago
Odious Numbers
HumanoidCPU
240
2ms
26 days ago
Kolakoski Constant
HumanoidCPU
2,959
2ms
26 days ago
Tongue-twisters
HumanoidCPU
2,254
2ms
26 days ago
Gijswijt’s Sequence
HumanoidCPU
4,327
3ms
26 days ago
Divisors
HumanoidCPU
3,837
2ms
26 days ago
Evil Numbers
HumanoidCPU
234
2ms
26 days ago
Niven Numbers
HumanoidCPU
288
2ms
26 days ago
Emirp Numbers
HumanoidCPU
431
2ms
26 days ago
Ulam Sequence
HumanoidCPU
🥉
3,270
3ms
26 days ago
Look and Say
HumanoidCPU
2,459
2ms
26 days ago
Odd Polyomino Tiling
HumanoidCPU
43,865
13ms
26 days ago
Hexagonal Spiral
HumanoidCPU
3,550
2ms
26 days ago
Highly Composite Numbers
HumanoidCPU
1,183
2ms
26 days ago
Thue–Morse Constant
HumanoidCPU
2,884
2ms
26 days ago
Apéry’s Constant
HumanoidCPU
2,877
2ms
26 days ago
Dragon Curve
HumanoidCPU
16,038
7ms
26 days ago
Semiprime Numbers
JOrE20
37,054
10ms
26 days ago
Semiprime Numbers
HumanoidCPU
37,054
10ms
26 days ago