Recent Solutions
Achievements
Cheevos
Golfers
Solutions
All Holes
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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
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
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)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
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
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
ALGOL 68
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
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
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
ALGOL 68
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Hole
All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
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
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
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)
Ten-pin Bowling
Tic-tac-toe
Time Distance
Tongue-twisters
Topological Sort
Tower of Hanoi
Transpose Sentence
Trinomial Triangle
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
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Prime Numbers (Long)
wurtylex
125
121ms
15 hours ago
United States
JOrE20
🥉
1,018
112ms
16 hours ago
Ascending Primes
emgordon154
💎
129
4,908ms
17 hours ago
Prime Numbers (Long)
klixel
113
221ms
3 days ago
Prime Numbers (Long)
Andriamanitra
130
489ms
3 days ago
Prime Numbers
pardouin
🥇
61
96ms
4 days ago
Hexdump
snoozingnewt
🥈
237
101ms
4 days ago
Transpose Sentence
snoozingnewt
🥈
103
104ms
4 days ago
Transpose Sentence
emgordon154
🥈
103
100ms
4 days ago
Tutorial
pardouin
64
122ms
4 days ago
Prime Numbers (Long)
jkelly467
90
514ms
4 days ago
Prime Numbers (Long)
pardouin
78
443ms
4 days ago
Multitap Input
snoozingnewt
🥉
143
99ms
5 days ago
Prime Numbers (Long)
Yewzir
5,968
104ms
5 days ago
Prime Numbers (Long)
tomh1012
166
1,139ms
5 days ago
Tutorial
FortuiteMan
234
190ms
6 days ago
Prime Numbers (Long)
error256
78
451ms
6 days ago
Fibonacci
error256
🥇
60
106ms
6 days ago
Tutorial
error256
64
163ms
6 days ago
Prime Numbers (Long)
FortuiteMan
95
604ms
6 days ago
Prime Numbers (Long)
Matter1024
119
400ms
6 days ago
Prime Numbers (Long)
voytxt
5,970
113ms
6 days ago
Prime Numbers (Long)
blaztoma
93
123ms
6 days ago
Prime Numbers (Long)
Andrey2001
217
117ms
6 days ago
Prime Numbers (Long)
prestosilver
147
107ms
6 days ago
Prime Numbers (Long)
kmathis22
177
471ms
6 days ago
Prime Numbers (Long)
rucin93
5,974
115ms
7 days ago
Multitap Input
emgordon154
💎
126
91ms
7 days ago
Prime Numbers (Long)
msbranicky
5,990
113ms
7 days ago
Prime Numbers (Long)
scpchicken
499
105ms
7 days ago
Prime Numbers (Long)
AstroOrbis
230
453ms
7 days ago
Prime Numbers (Long)
CornerMercury
80
459ms
7 days ago
Prime Numbers (Long)
albanian-laundromat
144
567ms
7 days ago
Proximity Grid
emgordon154
🥈
201
347ms
7 days ago
Repeating Decimals
emgordon154
🥉
318
116ms
7 days ago
π
JOrE20
1,025
101ms
7 days ago
Multitap Input
dokutan
473
118ms
7 days ago
Multitap Input
blaztoma
153
97ms
8 days ago
Polyominoes
albanian-laundromat
🥉
469
117ms
9 days ago
Rijndael S-box
blaztoma
🥈
261
120ms
10 days ago
Prime Numbers
Andrey2001
93
102ms
10 days ago
Fibonacci
Andrey2001
67
99ms
11 days ago
Diamonds
JOrE20
702
106ms
12 days ago
Hexdump
edsrzf
💎
221
109ms
13 days ago
Sudoku
blaztoma
🥈
509
143ms
13 days ago
Cubes
blaztoma
💎
265
108ms
14 days ago
π
Andrey2001
1,025
102ms
14 days ago
Intersection
blaztoma
162
99ms
17 days ago
Polyominoes
blaztoma
🥈
315
109ms
17 days ago
N Queens
edsrzf
💎
159
108ms
18 days ago
Multitap Input
edsrzf
🥈
129
105ms
20 days ago
Jacobi Symbol
blaztoma
🥈
196
96ms
21 days ago
Smith Numbers
blaztoma
🥉
179
150ms
21 days ago
United States
dokutan
1,051
122ms
23 days ago
ROT13
dokutan
1,102
127ms
23 days ago
Rock-paper-scissors-Spock-lizard
dokutan
🥉
650
129ms
23 days ago
Lucky Tickets
dokutan
4,057
135ms
23 days ago
Emojify
dokutan
470
125ms
23 days ago
CSS Colors
dokutan
3,747
137ms
23 days ago
Sudoku
snoozingnewt
💎
499
136ms
24 days ago
Tutorial
albanian-laundromat
75
121ms
24 days ago
Tutorial
Mefred
234
150ms
24 days ago
Maze
blaztoma
🥉
204
353ms
26 days ago
Fibonacci
plcc0
68
113ms
26 days ago
Gray Code Decoder
GolfingSuccess
83
111ms
12 Jan 2026
Minesweeper
blaztoma
🥉
230
301ms
11 Jan 2026
Zeckendorf Representation
blaztoma
240
114ms
11 Jan 2026
Vampire Numbers
edsrzf
💎
159
401ms
10 Jan 2026
Vampire Numbers
blaztoma
🥈
163
230ms
10 Jan 2026
Mahjong
blaztoma
🥈
275
115ms
9 Jan 2026
Zodiac Signs
blaztoma
🥈
193
121ms
8 Jan 2026
Quine
IISResetMe
163
102ms
8 Jan 2026
Mandelbrot
blaztoma
🥈
172
197ms
7 Jan 2026
Quine
CornerMercury
🥇
62
106ms
6 Jan 2026
Catalan’s Constant
JOrE20
1,025
120ms
6 Jan 2026
Kaprekar Numbers
DialFrost
💎
121
2,657ms
6 Jan 2026
Kaprekar Numbers
blaztoma
🥈
125
3,949ms
6 Jan 2026
Gray Code Decoder
albanian-laundromat
95
119ms
6 Jan 2026
ASCII Table
blaztoma
🥉
143
101ms
5 Jan 2026
ln 2
JOrE20
1,045
141ms
4 Jan 2026