The
Snake
hole will go live in approximately
13 hours
. Why not try and solve it ahead of time?
Recent Solutions
Achievements
Cheevos
Golfers
Solutions
All Holes
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
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
All Languages
><>
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
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
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
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
Tutorial
JOrE20
166
212ms
2 days ago
Snake
madex
359
175ms
2 days ago
Pernicious Numbers
snoozingnewt
62
160ms
3 days ago
Fizz Buzz
snoozingnewt
83
197ms
12 days ago
Catalan Numbers
snoozingnewt
92
173ms
12 days ago
brainfuck
edsrzf
265
265ms
27 Aug 2026
Thue–Morse Constant
HumanoidCPU
1,013
158ms
24 Aug 2026
Tutorial
quasar098
167
224ms
20 Aug 2026
Hexagonal Spiral
bitsandbeyond
437
182ms
14 Aug 2026
Yellowstone Permutation
HumanoidCPU
4,021
174ms
8 Aug 2026
Ulam Sequence
madex
217
186ms
31 Jul 2026
Ulam Sequence
dokutan
565
174ms
31 Jul 2026
Niven Numbers
dokutan
98
180ms
31 Jul 2026
√2
dokutan
614
175ms
31 Jul 2026
Farey Sequence
dokutan
521
179ms
31 Jul 2026
Odious Numbers (Long)
dokutan
115
176ms
31 Jul 2026
Evil Numbers (Long)
dokutan
115
171ms
31 Jul 2026
Number Spiral
JOrE20
310
173ms
31 Jul 2026
𝑒
dokutan
735
180ms
31 Jul 2026
φ
dokutan
1,013
174ms
31 Jul 2026
τ
dokutan
1,013
173ms
31 Jul 2026
π
dokutan
1,013
171ms
31 Jul 2026
λ
dokutan
1,013
172ms
31 Jul 2026
γ
dokutan
1,013
178ms
31 Jul 2026
Van Eck Sequence
dokutan
1,197
183ms
31 Jul 2026
Vampire Numbers
dokutan
676
182ms
31 Jul 2026
Trinomial Triangle
dokutan
2,077
177ms
31 Jul 2026
Tower of Hanoi
dokutan
3,587
178ms
31 Jul 2026
Taxicab Numbers
dokutan
4,170
173ms
31 Jul 2026
Smith Numbers
dokutan
1,109
176ms
31 Jul 2026
Recamán
dokutan
477
163ms
31 Jul 2026
Prime Numbers
dokutan
93
155ms
31 Jul 2026
Polyominoes
dokutan
3,574
155ms
31 Jul 2026
Pernicious Numbers
dokutan
103
147ms
31 Jul 2026
Pascal’s Triangle
dokutan
779
163ms
31 Jul 2026
Partition Numbers
dokutan
657
168ms
31 Jul 2026
Odious Numbers
dokutan
95
168ms
31 Jul 2026
Number Spiral
dokutan
310
150ms
31 Jul 2026
N Queens
dokutan
1,256
170ms
31 Jul 2026
Lucky Numbers
dokutan
2,765
169ms
31 Jul 2026
Look and Say
dokutan
1,289
164ms
31 Jul 2026
Leyland Numbers
dokutan
896
179ms
31 Jul 2026
Leap Years
dokutan
335
184ms
31 Jul 2026
Kolakoski Sequence
dokutan
2,010
177ms
31 Jul 2026
Kolakoski Constant
dokutan
1,013
177ms
31 Jul 2026
Kaprekar Numbers
dokutan
450
170ms
31 Jul 2026
Inventory Sequence
dokutan
1,085
190ms
31 Jul 2026
Happy Numbers (Long)
dokutan
333
172ms
31 Jul 2026
Happy Numbers
dokutan
111
179ms
31 Jul 2026
Gijswijt’s Sequence
dokutan
1,068
177ms
31 Jul 2026
Fibonacci
dokutan
137
184ms
31 Jul 2026
Evil Numbers
dokutan
94
171ms
31 Jul 2026
Emirp Numbers (Long)
dokutan
681
173ms
31 Jul 2026
Emirp Numbers
dokutan
129
189ms
31 Jul 2026
Divisors
dokutan
1,176
174ms
31 Jul 2026
Diamonds
dokutan
1,113
169ms
31 Jul 2026
Collatz
dokutan
1,259
189ms
31 Jul 2026
Catalan’s Constant
dokutan
1,013
172ms
31 Jul 2026
Catalan Numbers
dokutan
2,882
173ms
31 Jul 2026
Ascending Primes
dokutan
522
178ms
31 Jul 2026
Alphabetic Numbers
dokutan
1,958
182ms
31 Jul 2026
Abundant Numbers
dokutan
132
176ms
31 Jul 2026
ln 2
dokutan
605
171ms
31 Jul 2026
Prime Numbers (Long)
yzhs
91
567ms
18 Jul 2026
Prime Numbers
yzhs
89
173ms
18 Jul 2026
Arrows
edsrzf
191
230ms
13 Jun 2026
Arithmetic Numbers
edsrzf
122
2,103ms
8 Jun 2026
Abundant Numbers
edsrzf
70
203ms
8 Jun 2026
Abundant Numbers (Long)
edsrzf
71
209ms
8 Jun 2026
Odious Numbers (Long)
HumanoidCPU
168
181ms
17 May 2026
Evil Numbers (Long)
HumanoidCPU
169
174ms
17 May 2026
Ulam Sequence
HumanoidCPU
1,102
156ms
12 May 2026
Ulam Sequence
Shanethegamer
1,102
173ms
11 May 2026
Taxicab Numbers
edsrzf
106
212ms
30 Apr 2026
Dragon Curve
HumanoidCPU
10,282
170ms
23 Apr 2026
Dragon Curve
Shanethegamer
10,282
170ms
23 Apr 2026
Alphabetic Numbers
Shanethegamer
3,904
190ms
19 Apr 2026
Tutorial
targrik
100
213ms
13 Apr 2026
Inventory Sequence
edsrzf
82
245ms
27 Mar 2026
Gray Code Decoder
btjones0
126
188ms
25 Mar 2026
Fractions
madex
201
185ms
14 Mar 2026
Tower of Hanoi
scpchicken
106
182ms
13 Mar 2026
Alphabetic Numbers
HumanoidCPU
3,905
172ms
6 Mar 2026
Partition Numbers
aksyristos
351
186ms
20 Feb 2026
Tower of Hanoi
btjones0
97
182ms
16 Feb 2026
99 Bottles of Beer
Bozrem
468
178ms
9 Feb 2026
Catalan Numbers
GolfingSuccess
57
180ms
9 Feb 2026
Polygon Triangulations
jameswmccarty
4,325
173ms
8 Feb 2026
Smooth Numbers
GolfingSuccess
146
314ms
4 Feb 2026
Tutorial
FortuiteMan
167
210ms
3 Feb 2026
PalindromemordnilaP
edsrzf
120
180ms
31 Jan 2026
π
Andrey2001
1,013
173ms
25 Jan 2026
Tutorial
Mefred
167
211ms
15 Jan 2026
𝑒
JOrE20
1,013
182ms
5 Jan 2026
Happy Numbers (Long)
edsrzf
100
192ms
23 Dec 2025
Abundant Numbers (Long)
Florian-Mt
99
207ms
11 Dec 2025
Abundant Numbers
Florian-Mt
98
183ms
11 Dec 2025
Prime Numbers (Long)
Florian-Mt
86
550ms
11 Dec 2025
Prime Numbers
Florian-Mt
84
182ms
11 Dec 2025
Tutorial
kurkale6ka
113
246ms
11 Dec 2025