The
Snake
hole will go live in approximately
4 days
. Why not try and solve it ahead of time?
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brainfuck
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Collatz
Connect Four
Continued Fractions
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Diamonds
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Emirp Numbers
Emirp Numbers (Long)
Emojify
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Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
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
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
Bytes
Time
Submitted
Ulam Sequence
albanian-laundromat
💎
101
1,519ms
7 hours ago
Snake
madex
249
120ms
21 hours ago
𝑒
snoozingnewt
128
213ms
23 hours ago
Trinomial Triangle
snoozingnewt
🥉
110
108ms
23 hours ago
Sudoku
snoozingnewt
🥈
546
182ms
23 hours ago
Rijndael S-box
snoozingnewt
💎
206
117ms
23 hours ago
QR Decoder
snoozingnewt
284
123ms
23 hours ago
PalindromemordnilaP
snoozingnewt
126
131ms
23 hours ago
Ordinal Numbers
snoozingnewt
107
106ms
23 hours ago
Kolakoski Constant
snoozingnewt
🥉
173
341ms
23 hours ago
Kaprekar Numbers
snoozingnewt
117
834ms
23 hours ago
Catalan Numbers
snoozingnewt
💎
190
119ms
23 hours ago
τ
snoozingnewt
206
130ms
23 hours ago
π
snoozingnewt
206
132ms
23 hours ago
N Queens
snoozingnewt
190
117ms
23 hours ago
ISBN
snoozingnewt
139
124ms
23 hours ago
Emirp Numbers (Long)
snoozingnewt
130
673ms
23 hours ago
λ
snoozingnewt
667
179ms
32 hours ago
γ
snoozingnewt
667
171ms
32 hours ago
Vampire Numbers
snoozingnewt
165
705ms
32 hours ago
United States
snoozingnewt
🥉
191
139ms
32 hours ago
Topological Sort
snoozingnewt
🥈
193
1,707ms
32 hours ago
Tongue-twisters
snoozingnewt
369
94ms
32 hours ago
Ten-pin Bowling
snoozingnewt
211
115ms
32 hours ago
Sudoku (Fill-in)
snoozingnewt
🥉
287
282ms
32 hours ago
SI Units
snoozingnewt
🥈
574
269ms
32 hours ago
Rule 110
snoozingnewt
144
122ms
32 hours ago
Repeating Decimals
snoozingnewt
💎
238
134ms
32 hours ago
Proximity Grid
snoozingnewt
232
124ms
32 hours ago
Poker
snoozingnewt
🥉
362
158ms
32 hours ago
Pascal’s Triangle
snoozingnewt
84
107ms
32 hours ago
Number Spiral
snoozingnewt
🥉
133
104ms
32 hours ago
Musical Chords
snoozingnewt
254
150ms
32 hours ago
Multitap Input
snoozingnewt
🥈
159
130ms
32 hours ago
Morse Encoder
snoozingnewt
232
109ms
32 hours ago
Morse Decoder
snoozingnewt
222
138ms
32 hours ago
Minesweeper
snoozingnewt
🥉
193
140ms
32 hours ago
Medal Tally
snoozingnewt
198
137ms
32 hours ago
Mahjong
snoozingnewt
🥈
364
149ms
32 hours ago
Lucky Tickets
snoozingnewt
203
121ms
32 hours ago
Jacobi Symbol
snoozingnewt
185
116ms
32 hours ago
Intersection
snoozingnewt
155
114ms
32 hours ago
Hexdump
snoozingnewt
309
688ms
32 hours ago
Gijswijt’s Sequence
snoozingnewt
151
129ms
32 hours ago
Game of Life
snoozingnewt
182
106ms
32 hours ago
Factorial Factorisation
snoozingnewt
154
118ms
32 hours ago
Divisors
snoozingnewt
66
100ms
32 hours ago
Day of Week
snoozingnewt
🥈
128
701ms
32 hours ago
CSS Colors
snoozingnewt
🥈
768
140ms
32 hours ago
Continued Fractions
snoozingnewt
🥉
170
120ms
32 hours ago
Connect Four
snoozingnewt
🥈
284
174ms
32 hours ago
Collatz
snoozingnewt
72
98ms
32 hours ago
Card Number Validation
snoozingnewt
113
126ms
32 hours ago
Calendar
snoozingnewt
💎
281
136ms
32 hours ago
Billiards
snoozingnewt
🥉
215
126ms
32 hours ago
Arrows
snoozingnewt
164
156ms
32 hours ago
Alphabetic Numbers
snoozingnewt
138
896ms
32 hours ago
99 Bottles of Beer
snoozingnewt
276
97ms
32 hours ago
12 Days of Christmas
snoozingnewt
495
111ms
32 hours ago
Ulam Sequence
snoozingnewt
🥈
107
131ms
33 hours ago
Chess Move Validation
snoozingnewt
💎
155
121ms
33 hours ago
Nim
snoozingnewt
💎
130
103ms
33 hours ago
Leyland Numbers
snoozingnewt
🥈
128
674ms
33 hours ago
Happy Numbers (Long)
snoozingnewt
103
88ms
33 hours ago
Diamonds
snoozingnewt
123
98ms
33 hours ago
Arabic to Roman
snoozingnewt
🥉
191
120ms
33 hours ago
Mandelbrot
snoozingnewt
🥉
175
111ms
33 hours ago
24 Game
snoozingnewt
💎
317
1,030ms
33 hours ago
Leap Years
albanian-laundromat
48
87ms
38 hours ago
Alphabetic Numbers
prestosilver
🥉
137
726ms
4 days ago
Tower of Hanoi
albanian-laundromat
60
89ms
4 days ago
Tutorial
zzh1996
83
122ms
9 days ago
Pangram Grep
christos-cantina-security
123
90ms
11 days ago
Levenshtein Distance
christos-cantina-security
399
109ms
11 days ago
Arrows
christos-cantina-security
468
742ms
11 days ago
Fibonacci
christos-cantina-security
55
90ms
11 days ago
Pernicious Numbers
albanian-laundromat
🥇
38
102ms
11 days ago
Diamonds
zzh1996
🥇
98
108ms
11 days ago
Alphabetic Numbers
zzh1996
🥇
132
743ms
11 days ago
√2
zzh1996
🥉
176
223ms
11 days ago
φ
zzh1996
174
167ms
11 days ago
Kolakoski Constant
zzh1996
💎
162
418ms
11 days ago
Fractions
zzh1996
🥇
128
117ms
11 days ago
12 Days of Christmas
zzh1996
💎
459
98ms
11 days ago
Pernicious Numbers
CornerMercury
🥇
38
102ms
11 days ago
Divisors
albanian-laundromat
67
97ms
14 days ago
Musical Chords
madex
240
148ms
20 days ago
Connect Four
albanian-laundromat
🥉
323
261ms
22 days ago
Seven Segment
bitsandbeyond
🥈
154
158ms
22 days ago
Chess Move Validation
albanian-laundromat
🥈
172
153ms
24 days ago
Prime Numbers (Long)
Florian-Mt
75
244ms
26 Aug 2026
Prime Numbers
Florian-Mt
73
89ms
26 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,011
80ms
24 Aug 2026
brainfuck
HumanoidCPU
330
116ms
22 Aug 2026
Pernicious Numbers (Long)
HumanoidCPU
260
135ms
22 Aug 2026
Levenshtein Distance
HumanoidCPU
217
124ms
22 Aug 2026
Fractions
HumanoidCPU
132
123ms
22 Aug 2026
Pernicious Numbers (Long)
dokutan
68
107ms
21 Aug 2026
Prime Numbers (Long)
dokutan
57
577ms
21 Aug 2026
Prime Numbers
dokutan
55
94ms
21 Aug 2026