The
Snake
hole will go live in approximately
18 hours
. Why not try and solve it ahead of time?
Recent Solutions
Achievements
Cheevos
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All Holes
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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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
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
Intersection
JOrE20
93
61ms
2 days ago
Pernicious Numbers
snoozingnewt
44
64ms
3 days ago
Snake
JOrE20
184
65ms
3 days ago
Day of Week
JOrE20
72
69ms
4 days ago
Arrows
JOrE20
81
81ms
4 days ago
Pascal’s Triangle
JOrE20
59
62ms
4 days ago
Connect Four
JOrE20
123
68ms
7 days ago
π
JOrE20
66
66ms
7 days ago
√2
JOrE20
57
66ms
7 days ago
𝑒
JOrE20
56
67ms
7 days ago
ln 2
JOrE20
59
73ms
7 days ago
Quine
JOrE20
64
68ms
8 days ago
Tower of Hanoi
JOrE20
60
68ms
12 days ago
Thue–Morse Constant
JOrE20
65
66ms
12 days ago
Jacobi Symbol
JOrE20
100
67ms
12 days ago
Ascending Primes
JOrE20
68
1,100ms
14 days ago
Scrambled Sort
JOrE20
74
66ms
15 days ago
Collatz
JOrE20
68
77ms
15 days ago
Musical Chords
JOrE20
104
71ms
23 days ago
PalindromemordnilaP
JOrE20
70
68ms
24 days ago
Roman to Arabic
JOrE20
77
73ms
24 days ago
Yellowstone Permutation
JOrE20
91
1,261ms
24 days ago
Gray Code Decoder
JOrE20
62
173ms
24 days ago
Gray Code Encoder
JOrE20
59
70ms
24 days ago
Continued Fractions
JOrE20
89
65ms
25 days ago
Pernicious Numbers (Long)
JOrE20
59
69ms
25 days ago
Fibonacci
JOrE20
44
72ms
25 days ago
Set
JOrE20
99
75ms
26 days ago
Tongue-twisters
JOrE20
165
62ms
26 days ago
brainfuck
JOrE20
134
81ms
26 days ago
Prime Numbers (Long)
JOrE20
53
236ms
26 days ago
Prime Numbers
JOrE20
48
69ms
26 days ago
Farey Sequence
JOrE20
67
70ms
26 days ago
Leyland Numbers
JOrE20
69
69ms
1 Sep 2026
Chess Move Validation
dokutan
163
81ms
30 Aug 2026
φ
JOrE20
59
269ms
27 Aug 2026
Foo Fizz Buzz Bar
JOrE20
74
64ms
27 Aug 2026
Fizz Buzz
JOrE20
61
65ms
27 Aug 2026
Odious Numbers
JOrE20
48
65ms
27 Aug 2026
Evil Numbers
JOrE20
48
64ms
27 Aug 2026
Evil Numbers (Long)
JOrE20
50
67ms
27 Aug 2026
Odious Numbers (Long)
JOrE20
49
66ms
27 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,012
66ms
24 Aug 2026
Divisors
JOrE20
61
65ms
24 Aug 2026
Lucky Numbers
JOrE20
61
68ms
21 Aug 2026
Tutorial
quasar098
62
86ms
21 Aug 2026
Kolakoski Sequence
JOrE20
68
85ms
18 Aug 2026
Ulam Sequence
dokutan
121
161ms
14 Aug 2026
Flags
dokutan
859
236ms
14 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,020
68ms
8 Aug 2026
Tutorial
JOrE20
59
93ms
5 Aug 2026
Connect Four
dokutan
191
100ms
31 Jul 2026
Nim
dokutan
95
69ms
27 Jul 2026
φ
albanian-laundromat
74
117ms
27 Jul 2026
Alphabetic Numbers
dokutan
175
67ms
4 Jul 2026
Sphenic Numbers
GolfingSuccess
66
4,399ms
1 Jul 2026
Ulam Sequence
HumanoidCPU
1,102
66ms
12 May 2026
Ulam Sequence
Shanethegamer
1,102
70ms
11 May 2026
φ
dokutan
61
129ms
29 Apr 2026
τ
dokutan
67
68ms
29 Apr 2026
π
dokutan
67
74ms
29 Apr 2026
λ
dokutan
130
115ms
29 Apr 2026
γ
dokutan
90
109ms
29 Apr 2026
Kolakoski Constant
dokutan
81
141ms
29 Apr 2026
Dragon Curve
dokutan
710
66ms
29 Apr 2026
Catalan’s Constant
dokutan
83
77ms
29 Apr 2026
Number Spiral
dokutan
135
65ms
28 Apr 2026
Gray Code Decoder
dokutan
72
76ms
28 Apr 2026
Dragon Curve
HumanoidCPU
10,282
73ms
23 Apr 2026
Dragon Curve
Shanethegamer
10,282
83ms
23 Apr 2026
Ordinal Numbers
dokutan
77
72ms
19 Apr 2026
Alphabetic Numbers
Shanethegamer
3,904
71ms
19 Apr 2026
Tower of Hanoi
scpchicken
95
75ms
19 Apr 2026
Levenshtein Distance
GolfingSuccess
96
70ms
11 Apr 2026
Reversi
dokutan
166
91ms
28 Mar 2026
Poker
dokutan
176
110ms
28 Mar 2026
Niven Numbers (Long)
dokutan
59
71ms
28 Mar 2026
Multitap Input
dokutan
113
71ms
28 Mar 2026
Morse Encoder
dokutan
115
76ms
28 Mar 2026
Maze
dokutan
106
103ms
28 Mar 2026
Lucky Tickets
dokutan
85
72ms
28 Mar 2026
Lucky Numbers
dokutan
61
73ms
28 Mar 2026
Happy Numbers (Long)
dokutan
74
332ms
28 Mar 2026
Forsyth–Edwards Notation
dokutan
102
70ms
28 Mar 2026
Continued Fractions
dokutan
96
69ms
28 Mar 2026
Card Number Validation
dokutan
84
73ms
28 Mar 2026
ASCII Table
dokutan
86
70ms
28 Mar 2026
Arrows
dokutan
86
94ms
28 Mar 2026
99 Bottles of Beer
dokutan
146
73ms
28 Mar 2026
Fizz Buzz
madex
124
67ms
14 Mar 2026
Trinomial Triangle
dokutan
65
66ms
14 Mar 2026
Game of Life
dokutan
107
68ms
14 Mar 2026
Fractions
dokutan
70
70ms
14 Mar 2026
Diamonds
dokutan
81
66ms
14 Mar 2026
Pernicious Numbers
GolfingSuccess
48
71ms
13 Mar 2026
Pascal’s Triangle
dokutan
60
70ms
12 Mar 2026
Arithmetic Numbers
dokutan
72
3,019ms
12 Mar 2026
Abundant Numbers
dokutan
65
70ms
12 Mar 2026
Number Spiral
snoozingnewt
82
68ms
6 Mar 2026
Farey Sequence
snoozingnewt
68
69ms
6 Mar 2026