The
Snake
hole will go live in approximately
30 hours
. Why not try and solve it ahead of time?
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brainfuck
Calendar
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Catalan’s Constant
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Christmas Trees
Collatz
Connect Four
Continued Fractions
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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
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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
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
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
Tic-tac-toe
error256
🥉
94
113ms
21 mins ago
Tic-tac-toe
edsrzf
🥇
88
113ms
18 hours ago
Ten-pin Bowling
snoozingnewt
🥈
205
122ms
22 hours ago
Musical Chords
snoozingnewt
214
113ms
22 hours ago
Recamán
edsrzf
🥇
96
108ms
39 hours ago
Partition Numbers
Steffan153
🥇
103
113ms
43 hours ago
Recamán
Steffan153
🥇
96
102ms
44 hours ago
Snake
madex
322
133ms
44 hours ago
Partition Numbers
edsrzf
🥉
105
103ms
44 hours ago
Happy Numbers (Long)
Steffan153
🥇
111
100ms
45 hours ago
Arabic to Roman
Steffan153
🥇
144
111ms
45 hours ago
Trinomial Triangle
edsrzf
🥇
94
112ms
45 hours ago
Number Spiral
snoozingnewt
🥈
128
100ms
47 hours ago
Seven Segment
snoozingnewt
119
106ms
2 days ago
Set
snoozingnewt
153
129ms
2 days ago
γ
snoozingnewt
🥈
149
141ms
2 days ago
Pascal’s Triangle
snoozingnewt
🥈
85
104ms
2 days ago
Alphabetic Numbers
snoozingnewt
🥈
156
105ms
2 days ago
Arabic to Roman
edsrzf
🥇
144
119ms
2 days ago
Roman to Arabic
edsrzf
🥈
108
113ms
2 days ago
Leap Years
edsrzf
🥇
60
96ms
2 days ago
Trinomial Triangle
snoozingnewt
🥇
94
110ms
2 days ago
Morse Decoder
snoozingnewt
195
102ms
2 days ago
Zodiac Signs
snoozingnewt
🥉
169
106ms
2 days ago
Morse Encoder
snoozingnewt
🥈
175
103ms
2 days ago
Foo Fizz Buzz Bar
snoozingnewt
121
104ms
2 days ago
Connect Four
snoozingnewt
🥉
256
124ms
2 days ago
Van Eck Sequence
edsrzf
🥇
74
102ms
2 days ago
Pascal’s Triangle
edsrzf
💎
83
99ms
2 days ago
Happy Numbers (Long)
snoozingnewt
🥇
111
100ms
2 days ago
Game of Life
snoozingnewt
153
122ms
2 days ago
DFA Simulator
snoozingnewt
🥈
225
107ms
2 days ago
Christmas Trees
snoozingnewt
95
105ms
2 days ago
Catalan’s Constant
snoozingnewt
🥉
152
108ms
2 days ago
ISBN
snoozingnewt
107
99ms
2 days ago
Inventory Sequence
edsrzf
🥇
93
146ms
2 days ago
Ulam Sequence
snoozingnewt
🥉
107
112ms
2 days ago
Trinomial Triangle
Steffan153
🥉
111
114ms
2 days ago
Polyominoes
snoozingnewt
🥈
212
152ms
2 days ago
Proximity Grid
snoozingnewt
🥉
172
168ms
2 days ago
Maze
snoozingnewt
169
204ms
2 days ago
Levenshtein Distance
snoozingnewt
167
134ms
2 days ago
Kaprekar Numbers
snoozingnewt
144
343ms
2 days ago
Lucky Numbers
snoozingnewt
🥉
120
124ms
2 days ago
Chess Move Validation
snoozingnewt
🥉
137
128ms
2 days ago
12 Days of Christmas
error256
💎
170
98ms
3 days ago
Collatz
edsrzf
🥉
96
103ms
3 days ago
Hexdump
edsrzf
💎
214
107ms
3 days ago
United States
snoozingnewt
🥈
169
107ms
3 days ago
Sudoku
snoozingnewt
🥈
420
130ms
3 days ago
Poker
snoozingnewt
🥈
293
128ms
3 days ago
Hexdump
snoozingnewt
🥈
218
108ms
3 days ago
Emojify
snoozingnewt
132
111ms
3 days ago
Arrows
snoozingnewt
🥉
142
151ms
3 days ago
99 Bottles of Beer
snoozingnewt
🥈
265
111ms
3 days ago
Cubes
snoozingnewt
🥈
252
100ms
4 days ago
Calendar
snoozingnewt
🥉
249
109ms
4 days ago
12 Days of Christmas
snoozingnewt
🥈
249
104ms
4 days ago
Nim
snoozingnewt
🥉
126
101ms
4 days ago
N Queens
snoozingnewt
🥈
156
105ms
4 days ago
Emirp Numbers (Long)
snoozingnewt
🥇
130
451ms
4 days ago
Kolakoski Constant
snoozingnewt
🥈
149
111ms
4 days ago
Reversi
snoozingnewt
💎
138
139ms
4 days ago
QR Decoder
snoozingnewt
💎
167
102ms
4 days ago
φ
snoozingnewt
🥉
97
109ms
4 days ago
Tongue-twisters
snoozingnewt
🥈
191
99ms
4 days ago
Star Wars Opening Crawl
snoozingnewt
💎
339
122ms
4 days ago
Star Wars GPT
snoozingnewt
💎
193
113ms
4 days ago
Spelling Numbers
snoozingnewt
💎
325
131ms
4 days ago
Sierpiński Triangle
snoozingnewt
🥈
99
101ms
4 days ago
SI Units
snoozingnewt
💎
366
221ms
4 days ago
Rule 110
snoozingnewt
🥉
117
100ms
4 days ago
Ordinal Numbers
snoozingnewt
🥉
120
106ms
4 days ago
Multitap Input
snoozingnewt
🥉
132
109ms
4 days ago
Intersection
snoozingnewt
159
101ms
4 days ago
Hilbert Curve
snoozingnewt
💎
231
97ms
4 days ago
Day of Week
snoozingnewt
164
124ms
4 days ago
CSS Colors
snoozingnewt
💎
366
104ms
4 days ago
Fractions
snoozingnewt
138
109ms
4 days ago
Forsyth–Edwards Notation
Steffan153
🥇
126
172ms
6 days ago
Fibonacci
bpharaldsson
79
124ms
8 days ago
brainfuck
snoozingnewt
🥈
271
118ms
11 days ago
Game of Life
Steffan153
🥇
131
152ms
12 days ago
Arrows
christos-cantina-security
442
180ms
14 days ago
Fibonacci
christos-cantina-security
78
109ms
14 days ago
Pernicious Numbers
albanian-laundromat
🥇
67
110ms
14 days ago
Pernicious Numbers
CornerMercury
118
153ms
14 days ago
Pernicious Numbers
JOrE20
71
151ms
14 days ago
Fizz Buzz
JOrE20
139
160ms
15 days ago
Odious Numbers
albanian-laundromat
🥇
62
142ms
16 days ago
Tutorial
HumanoidCPU
64
201ms
16 days ago
Pangram Grep
error256
🥇
69
148ms
18 days ago
Zodiac Signs
edsrzf
💎
146
154ms
19 days ago
Chess Move Validation
Steffan153
💎
109
153ms
23 days ago
Chess Move Validation
edsrzf
🥈
112
151ms
23 days ago
Hexdump
halfminami
246
149ms
24 days ago
Game of Life
halfminami
150
169ms
24 days ago
99 Bottles of Beer
albanian-laundromat
317
151ms
25 days ago
Fizz Buzz
albanian-laundromat
172
117ms
1 Sep 2026
Evil Numbers
albanian-laundromat
🥇
63
126ms
1 Sep 2026