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
Bytes
Time
Submitted
Ordinal Numbers
FoxInTheClouds
103
19ms
3 mins ago
Recamán
AstroOrbis
83
10ms
5 mins ago
Rijndael S-box
JOrE20
195
9ms
10 mins ago
Evil Numbers (Long)
CotesiaFlowers
33
15ms
12 mins ago
Evil Numbers
CotesiaFlowers
32
14ms
13 mins ago
Card Number Validation
dokutan
133
2ms
41 mins ago
Semiprime Numbers
hallvabo
95
213ms
50 mins ago
Zeckendorf Representation
DialFrost
144
351ms
53 mins ago
Hexdump
DialFrost
🥈
190
398ms
55 mins ago
Levenshtein Distance
DialFrost
101
412ms
59 mins ago
ROT13
GolfingSuccess
💎
95
35ms
70 mins ago
Happy Numbers
JOrE20
82
10ms
71 mins ago
Lucky Numbers
JOrE20
118
2,102ms
83 mins ago
Niven Numbers
bilal2709
117
401ms
86 mins ago
Prime Numbers
Code-Coder-coder
61
10ms
97 mins ago
Lucky Numbers
JOrE20
89
11ms
100 mins ago
Pangram Grep
Code-Coder-coder
100
11ms
108 mins ago
Star Wars Opening Crawl
JOrE20
304
11ms
113 mins ago
Pangram Grep
denkyuu1
46
37ms
115 mins ago
Recamán
Code-Coder-coder
86
10ms
2 hours ago
Fibonacci
JOrE20
135
40ms
2 hours ago
Evil Numbers
JOrE20
🥇
64
26ms
2 hours ago
Lucky Numbers
FortuiteMan
🥈
221
3,106ms
2 hours ago
π
KasperKivimaeki
🥈
157
1,005ms
2 hours ago
Tutorial
frankgraziano
82
41ms
2 hours ago
Evil Numbers (Long)
Code-Coder-coder
54
11ms
2 hours ago
Multitap Input
IanUtley
💎
119
16ms
2 hours ago
Multitap Input
duckyluuk
104
10ms
3 hours ago
Look and Say
stefangimmillaro
148
42ms
3 hours ago
Abundant Numbers
Code-Coder-coder
67
9ms
3 hours ago
Seven Segment
Code-Coder-coder
142
10ms
3 hours ago
Divisors
SectorCorruptor
63
10ms
4 hours ago
Tongue-twisters
SectorCorruptor
535
10ms
4 hours ago
Tower of Hanoi
tomh1012
114
9ms
4 hours ago
Collatz
SectorCorruptor
88
22ms
5 hours ago
Fibonacci
FortuiteMan
68
1,021ms
5 hours ago
Pascal’s Triangle
SectorCorruptor
58
12ms
5 hours ago
π
FortuiteMan
1,008
1,021ms
5 hours ago
Recamán
FortuiteMan
🥈
167
114ms
5 hours ago
Christmas Trees
SectorCorruptor
95
10ms
5 hours ago
Christmas Trees
Sxltry
78
10ms
5 hours ago
Levenshtein Distance
pardouin
95
358ms
6 hours ago
Multitap Input
duckyluuk
119
413ms
6 hours ago
√2
HPWiz
💎
145
3,890ms
6 hours ago
τ
HPWiz
💎
143
3,920ms
6 hours ago
π
HPWiz
💎
143
3,916ms
6 hours ago
ISBN
m-tkach
152
31ms
6 hours ago
Card Number Validation
edsrzf
💎
131
27ms
6 hours ago
Ellipse Perimeters
Shanethegamer
116
28ms
6 hours ago
Pangram Grep
SectorCorruptor
80
18ms
6 hours ago
ISBN
edsrzf
💎
143
31ms
6 hours ago
Star Wars GPT
edsrzf
💎
219
45ms
6 hours ago
Zeckendorf Representation
Shanethegamer
💎
135
31ms
6 hours ago
Star Wars GPT
Shanethegamer
🥈
222
617ms
6 hours ago
DFA Simulator
edsrzf
💎
226
41ms
6 hours ago
Spelling Numbers
Shanethegamer
🥈
435
30ms
7 hours ago
DFA Simulator
Shanethegamer
🥈
234
40ms
7 hours ago
Roman to Arabic
Shanethegamer
🥈
136
32ms
7 hours ago
Reversi
Shanethegamer
💎
211
30ms
7 hours ago
Foo Fizz Buzz Bar
SectorCorruptor
90
11ms
7 hours ago
Reverse Polish Notation
Shanethegamer
🥈
190
32ms
7 hours ago
Pangram Grep
Shanethegamer
🥈
116
27ms
7 hours ago
Ordinal Numbers
Shanethegamer
🥉
137
30ms
7 hours ago
Minesweeper
Shanethegamer
🥈
184
34ms
7 hours ago
Medal Tally
Shanethegamer
💎
216
35ms
7 hours ago
ISBN
Shanethegamer
🥈
144
29ms
7 hours ago
Intersection
Shanethegamer
🥉
159
33ms
7 hours ago
Fractions
Shanethegamer
129
30ms
7 hours ago
Billiards
edsrzf
💎
238
31ms
7 hours ago
Billiards
Shanethegamer
🥈
254
30ms
7 hours ago
Arrows
Shanethegamer
158
32ms
7 hours ago
Arabic to Roman
Shanethegamer
221
31ms
7 hours ago
Tutorial
Shanethegamer
72
25ms
7 hours ago
Emojify
edsrzf
💎
182
25ms
7 hours ago
Multitap Input
bstrat
🥉
53
3ms
7 hours ago
Divisors
Matter1024
63
10ms
7 hours ago
Factorial Factorisation
lelbal
176
19ms
8 hours ago
Fibonacci
emgordon154
163
9ms
8 hours ago
Intersection
kg583
🥉
145
15ms
8 hours ago
Multitap Input
Heathcorp
🦄
456
4ms
8 hours ago