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
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
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
><>
ALGOL 68
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
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
><>
ALGOL 68
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
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
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
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
Medal Tally
Chinay-Domitrix
200
2,442ms
5 mins ago
Billiards
kg583
🥈
120
7ms
10 mins ago
Topological Sort
edsrzf
💎
111
2,072ms
10 mins ago
Topological Sort
kg583
🥈
123
487ms
11 mins ago
𝑒
Steffan153
💎
65
2,212ms
24 mins ago
Reverse Polish Notation
edsrzf
🥇
187
8ms
32 mins ago
brainfuck
Chinay-Domitrix
291
2,993ms
42 mins ago
Topological Sort
CornerMercury
89
16ms
57 mins ago
Tutorial
Chinay-Domitrix
50
4,240ms
58 mins ago
Pascal’s Triangle
Steffan153
🥇
52
6ms
63 mins ago
Rijndael S-box
Steffan153
💎
98
7ms
69 mins ago
ROT13
StefanHabel
68
11ms
71 mins ago
Rock-paper-scissors-Spock-lizard
Steffan153
🥈
90
34ms
80 mins ago
Tower of Hanoi
fuzzylojik-golf
71
3ms
82 mins ago
Rule 110
GrayJoKing
🥈
93
9ms
104 mins ago
Tower of Hanoi
fuzzylojik-golf
68
108ms
119 mins ago
Divisors
GolfingSuccess
70
4ms
2 hours ago
π
penbuvt
1,007
2ms
2 hours ago
Fizz Buzz
fuzzylojik-golf
83
3ms
2 hours ago
Abundant Numbers
fuzzylojik-golf
79
3ms
2 hours ago
Foo Fizz Buzz Bar
fuzzylojik-golf
128
3ms
2 hours ago
Tic-tac-toe
edsrzf
🥉
119
615ms
2 hours ago
π
Carlos-EAC
1,050
269ms
2 hours ago
Arithmetic Numbers
fuzzylojik-golf
90
267ms
2 hours ago
Diamonds
Carlos-EAC
1,150
265ms
2 hours ago
Abundant Numbers (Long)
fuzzylojik-golf
79
8ms
2 hours ago
Evil Numbers
fuzzylojik-golf
42
3ms
2 hours ago
Odious Numbers
fuzzylojik-golf
43
3ms
2 hours ago
Tower of Hanoi
StefanHabel
57
11ms
2 hours ago
Niven Numbers (Long)
fuzzylojik-golf
62
4ms
2 hours ago
Niven Numbers (Long)
dokutan
50
400ms
2 hours ago
Niven Numbers (Long)
dokutan
51
16ms
2 hours ago
Odious Numbers (Long)
fuzzylojik-golf
63
3ms
2 hours ago
Evil Numbers (Long)
fuzzylojik-golf
63
3ms
3 hours ago
Quine
fuzzylojik-golf
45
3ms
3 hours ago
Prime Numbers (Long)
fuzzylojik-golf
63
120ms
3 hours ago
Prime Numbers
fuzzylojik-golf
62
3ms
3 hours ago
Divisors
fuzzylojik-golf
70
4ms
3 hours ago
Pernicious Numbers
fuzzylojik-golf
51
3ms
3 hours ago
Niven Numbers
fuzzylojik-golf
46
3ms
3 hours ago
Fibonacci
fuzzylojik-golf
43
3ms
3 hours ago
π
edward-Han1024
1,011
10ms
3 hours ago
QR Decoder
Chinay-Domitrix
271
2,530ms
3 hours ago
Niven Numbers
madex
44
1,251ms
3 hours ago
Niven Numbers
madex
62
119ms
3 hours ago
Niven Numbers
madex
36
34ms
3 hours ago
Niven Numbers
madex
46
10ms
3 hours ago
Niven Numbers
madex
🥇
44
2,170ms
3 hours ago
π
penbuvt
385
223ms
3 hours ago
Prime Numbers
snoozingnewt
49
5ms
4 hours ago
Divisors
madex
64
2,398ms
4 hours ago
Leap Years
madex
42
1,172ms
4 hours ago
ASCII Table
error256
116
8ms
4 hours ago
Leap Years
madex
58
3ms
4 hours ago
Leap Years
madex
49
2,094ms
4 hours ago
Leap Years
madex
41
33ms
4 hours ago
ISBN
Seek64
91
16ms
4 hours ago
Tower of Hanoi
madex
74
774ms
4 hours ago
Christmas Trees
madex
74
1,270ms
4 hours ago
Fractions
madex
152
117ms
4 hours ago
Look and Say
madex
58
1,244ms
4 hours ago
Foo Fizz Buzz Bar
hazzery
157
3ms
4 hours ago
Pangram Grep
madex
🥇
62
2,928ms
4 hours ago
π
hazzery
1,023
2ms
4 hours ago
Foo Fizz Buzz Bar
hazzery
172
433ms
4 hours ago
Arabic to Roman
pardouin
🥇
126
2,741ms
5 hours ago
Tutorial
madex
70
74ms
5 hours ago
Look and Say
madex
113
2ms
5 hours ago
π
penbuvt
162
16ms
5 hours ago
Look and Say
madex
104
3ms
5 hours ago
Roman to Arabic
madex
160
202ms
5 hours ago
Roman to Arabic
madex
155
457ms
5 hours ago
Roman to Arabic
madex
142
3ms
5 hours ago
Musical Chords
madex
398
1,303ms
5 hours ago
Musical Chords
madex
350
568ms
5 hours ago
Musical Chords
madex
361
433ms
5 hours ago
Sudoku (Fill-in)
snoozingnewt
🥈
276
3,476ms
5 hours ago
Inventory Sequence
solisolu
67
3ms
6 hours ago
φ
Steffan153
🥇
78
3,842ms
6 hours ago
Emojify
Chinay-Domitrix
195
3,101ms
6 hours ago