The
Snake
hole will go live in approximately
10 hours
. Why not try and solve it ahead of time?
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brainfuck
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Emirp Numbers (Long)
Emojify
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Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
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Fractions
Game of Life
Gijswijt’s Sequence
Gray Code Decoder
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Happy Numbers
Happy Numbers (Long)
Hexdump
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Intersection
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ISBN
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Kolakoski Constant
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Leap Years
Levenshtein Distance
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ln 2
Look and Say
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Medal Tally
Minesweeper
Morse Decoder
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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
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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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Semiprime Numbers
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Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
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ALGOL 68
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AWK
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brainfuck
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C#
C++
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Coconut
Common Lisp
Crystal
D
Dart
Elixir
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F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
Groovy
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Hexagony
iogii
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
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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
Bytes
Time
Submitted
Snake
madex
554
221ms
2 days ago
Thue–Morse Constant
HumanoidCPU
1,015
2ms
24 Aug 2026
Tutorial
quasar098
182
2ms
20 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,023
2ms
8 Aug 2026
Ulam Sequence
madex
242
375ms
31 Jul 2026
Ulam Sequence
HumanoidCPU
1,105
2ms
12 May 2026
Ulam Sequence
Shanethegamer
1,105
2ms
11 May 2026
Dragon Curve
HumanoidCPU
10,285
2ms
23 Apr 2026
Dragon Curve
Shanethegamer
10,285
2ms
23 Apr 2026
Alphabetic Numbers
Shanethegamer
3,907
2ms
19 Apr 2026
Tower of Hanoi
scpchicken
130
5ms
11 Apr 2026
Fizz Buzz
madex
158
3ms
14 Mar 2026
Alphabetic Numbers
HumanoidCPU
3,907
2ms
6 Mar 2026
Tutorial
FortuiteMan
182
3ms
3 Feb 2026
π
Andrey2001
1,015
1ms
25 Jan 2026
Tutorial
Mefred
119
3ms
23 Jan 2026
𝑒
JOrE20
1,015
1ms
5 Jan 2026
Tutorial
HumanoidCPU
93
3ms
1 Jan 2026
12 Days of Christmas
retro-pigeon
2,381
2ms
25 Dec 2025
Tutorial
prestosilver
182
3ms
19 Dec 2025
Highly Composite Numbers
kurkale6ka
404
2ms
15 Dec 2025
Smooth Numbers
GolfingSuccess
148
1,876ms
14 Dec 2025
Prime Numbers
kurkale6ka
83
1ms
12 Dec 2025
Trinomial Triangle
kurkale6ka
2,079
2ms
12 Dec 2025
Look and Say
kurkale6ka
1,291
2ms
12 Dec 2025
Tower of Hanoi
KatieLG
4,099
2ms
30 Nov 2025
Taxicab Numbers
HumanoidCPU
4,172
2ms
27 Nov 2025
Taxicab Numbers
Shanethegamer
4,172
2ms
26 Nov 2025
Fibonacci
Zach1031
82
2ms
21 Nov 2025
Kolakoski Sequence
HumanoidCPU
2,012
2ms
12 Nov 2025
Tower of Hanoi
HumanoidCPU
3,589
2ms
6 Nov 2025
Tower of Hanoi
Shanethegamer
3,589
2ms
30 Oct 2025
Tutorial
snoozingnewt
93
2ms
18 Oct 2025
Tutorial
Babafaba
182
3ms
15 Oct 2025
Tutorial
retrohun
182
3ms
19 Sep 2025
Fizz Buzz
snoozingnewt
425
2ms
15 Sep 2025
Fibonacci
GolfingSuccess
57
2ms
31 Aug 2025
Tutorial
Vexxter9
182
3ms
21 Aug 2025
Highly Composite Numbers
HumanoidCPU
404
2ms
18 Aug 2025
Hilbert Curve
HumanoidCPU
5,130
2ms
18 Aug 2025
Abundant Numbers (Long)
HumanoidCPU
976
1ms
18 Aug 2025
Polyominoes
HumanoidCPU
3,576
2ms
18 Aug 2025
Recamán
HumanoidCPU
909
1ms
18 Aug 2025
Pascal’s Triangle
HumanoidCPU
781
2ms
18 Aug 2025
Kaprekar Numbers
HumanoidCPU
452
1ms
18 Aug 2025
Happy Numbers
HumanoidCPU
119
2ms
18 Aug 2025
Happy Numbers (Long)
HumanoidCPU
564
1ms
18 Aug 2025
Emirp Numbers (Long)
HumanoidCPU
1,168
2ms
18 Aug 2025
Catalan Numbers
HumanoidCPU
2,884
2ms
18 Aug 2025
Tongue-twisters
HumanoidCPU
535
2ms
18 Aug 2025
Van Eck Sequence
HumanoidCPU
2,567
2ms
17 Aug 2025
Abundant Numbers
HumanoidCPU
175
1ms
16 Aug 2025
Evil Numbers
GolfingSuccess
75
2ms
15 Aug 2025
Odious Numbers
GolfingSuccess
75
2ms
15 Aug 2025
Niven Numbers
GolfingSuccess
61
2ms
15 Aug 2025
Look and Say
HumanoidCPU
1,291
1ms
15 Aug 2025
Farey Sequence
HumanoidCPU
4,366
2ms
15 Aug 2025
Diamonds
HumanoidCPU
1,115
2ms
15 Aug 2025
Niven Numbers
HumanoidCPU
103
2ms
14 Aug 2025
Lucky Numbers
HumanoidCPU
4,832
2ms
14 Aug 2025
Inventory Sequence
HumanoidCPU
2,635
2ms
14 Aug 2025
Gijswijt’s Sequence
HumanoidCPU
2,012
2ms
14 Aug 2025
Smith Numbers
HumanoidCPU
1,836
2ms
14 Aug 2025
Arithmetic Numbers
HumanoidCPU
37,654
2ms
14 Aug 2025
Odious Numbers (Long)
HumanoidCPU
1,957
2ms
14 Aug 2025
Evil Numbers (Long)
HumanoidCPU
1,962
1ms
14 Aug 2025
N Queens
HumanoidCPU
1,258
2ms
14 Aug 2025
Pernicious Numbers (Long)
HumanoidCPU
20,674
2ms
14 Aug 2025
Divisors
HumanoidCPU
1,178
2ms
14 Aug 2025
Foo Fizz Buzz Bar
HumanoidCPU
5,731
2ms
14 Aug 2025
Prime Numbers (Long)
HumanoidCPU
5,960
2ms
14 Aug 2025
24 Game
HumanoidCPU
12,444
2ms
14 Aug 2025
Niven Numbers (Long)
HumanoidCPU
7,450
2ms
14 Aug 2025
Odious Numbers
HumanoidCPU
85
1ms
11 Aug 2025
Evil Numbers
HumanoidCPU
82
2ms
10 Aug 2025
Trinomial Triangle
HumanoidCPU
2,079
2ms
6 Aug 2025
Rijndael S-box
HumanoidCPU
780
2ms
4 Aug 2025
Prime Numbers
HumanoidCPU
83
2ms
2 Aug 2025
Sierpiński Triangle
HumanoidCPU
566
2ms
2 Aug 2025
Sphenic Numbers
HumanoidCPU
8,872
2ms
29 Jul 2025
π
Ralac07
1,015
2ms
28 Jul 2025
Semiprime Numbers
HumanoidCPU
12,801
2ms
28 Jul 2025
Tutorial
Bpc-CPU
182
3ms
12 Jul 2025
𝑒
BREMAUCY
1,015
2ms
7 Jul 2025
Fibonacci
HumanoidCPU
146
2ms
1 Jul 2025
Mandelbrot
HumanoidCPU
10,016
2ms
30 Jun 2025
Number Spiral
HumanoidCPU
312
1ms
27 Jun 2025
𝑒
gigaprofisi
1,015
2ms
20 Jun 2025
Collatz
HumanoidCPU
3,238
2ms
20 Jun 2025
Ascending Primes
HumanoidCPU
524
1ms
13 Jun 2025
Christmas Trees
HumanoidCPU
557
2ms
5 Jun 2025
Pernicious Numbers
HumanoidCPU
112
1ms
5 Jun 2025
Leap Years
HumanoidCPU
742
1ms
5 Jun 2025
Catalan’s Constant
HumanoidCPU
1,015
1ms
5 Jun 2025
Kolakoski Constant
HumanoidCPU
1,015
2ms
5 Jun 2025
λ
HumanoidCPU
1,015
2ms
5 Jun 2025
τ
HumanoidCPU
1,015
2ms
5 Jun 2025
π
HumanoidCPU
1,015
2ms
5 Jun 2025
φ
HumanoidCPU
1,015
2ms
5 Jun 2025
γ
HumanoidCPU
1,015
2ms
5 Jun 2025