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
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
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
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
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
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
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
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
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Chars
Time
Submitted
Look and Say
kumavale
🥈
130
203ms
17 hours ago
Emojify
JayXon
💎
136
161ms
17 hours ago
Roman to Arabic
JayXon
🥇
126
170ms
17 hours ago
Emojify
kumavale
🥈
139
173ms
17 hours ago
Abundant Numbers (Long)
roelderickx
86
135ms
29 hours ago
Abundant Numbers
roelderickx
85
130ms
29 hours ago
Rijndael S-box
MostParsingVex
139
139ms
32 hours ago
Look and Say
acotis
143
210ms
35 hours ago
Fizz Buzz
vang1ong7ang
113
125ms
44 hours ago
Fibonacci
vang1ong7ang
🥇
64
133ms
44 hours ago
Fibonacci
cefqrn
🥇
64
127ms
44 hours ago
Prime Numbers
roelderickx
65
131ms
3 days ago
Prime Numbers (Long)
roelderickx
🥇
67
129ms
3 days ago
Abundant Numbers
Steffan153
🥇
70
129ms
3 days ago
Quine
fuzzylojik-golf
🥇
45
111ms
4 days ago
ISBN
AidanWalter
232
176ms
4 days ago
Tower of Hanoi
madex
76
128ms
5 days ago
Collatz
madex
101
114ms
5 days ago
Niven Numbers
madex
🥇
61
120ms
5 days ago
Fractions
madex
198
205ms
6 days ago
Pernicious Numbers
GolfingSuccess
🥇
55
118ms
7 days ago
Levenshtein Distance
acotis
🥇
228
205ms
9 days ago
Evil Numbers
fantaize
66
121ms
10 days ago
Fractions
fantaize
202
231ms
10 days ago
Arabic to Roman
fantaize
231
191ms
10 days ago
Inventory Sequence
fantaize
157
123ms
10 days ago
CSS Grid
fantaize
580
279ms
10 days ago
Emirp Numbers (Long)
fantaize
155
144ms
10 days ago
Levenshtein Distance
fantaize
308
198ms
10 days ago
Jacobi Symbol
fantaize
268
203ms
10 days ago
Ellipse Perimeters
fantaize
267
225ms
10 days ago
Emirp Numbers
fantaize
147
131ms
10 days ago
Lucky Numbers
fantaize
161
178ms
10 days ago
Foo Fizz Buzz Bar
fantaize
154
134ms
10 days ago
Factorial Factorisation
fantaize
159
132ms
10 days ago
Gray Code Decoder
fantaize
102
148ms
10 days ago
Farey Sequence
fantaize
111
121ms
10 days ago
ISBN
fantaize
179
148ms
10 days ago
CSS Colors (Inverse)
fantaize
2,336
174ms
10 days ago
Evil Numbers (Long)
fantaize
70
116ms
10 days ago
Collatz
fantaize
91
123ms
10 days ago
Hilbert Curve
fantaize
2,079
243ms
10 days ago
Look and Say
fantaize
215
152ms
10 days ago
Gray Code Encoder
fantaize
83
156ms
10 days ago
Kaprekar Numbers
fantaize
123
608ms
10 days ago
Mandelbrot
fantaize
811
142ms
10 days ago
Intersection
fantaize
223
211ms
10 days ago
Calendar
fantaize
1,783
229ms
10 days ago
Emojify
fantaize
792
155ms
10 days ago
Lucky Tickets
fantaize
322
216ms
10 days ago
Gijswijt’s Sequence
fantaize
188
426ms
10 days ago
Mahjong
fantaize
2,692
189ms
10 days ago
Leap Years
fantaize
68
119ms
10 days ago
Flags
fantaize
4,823
444ms
10 days ago
Catalan Numbers
fantaize
292
150ms
10 days ago
Kolakoski Constant
fantaize
830
172ms
10 days ago
Apéry’s Constant
fantaize
1,023
100ms
10 days ago
Fibonacci
fantaize
66
123ms
10 days ago
Diamonds
fantaize
162
129ms
10 days ago
Abundant Numbers (Long)
fantaize
🥇
79
122ms
10 days ago
Binary Lambda Calculus
fantaize
1,022
213ms
10 days ago
Connect Four
fantaize
562
215ms
10 days ago
Hexdump
fantaize
1,135
200ms
10 days ago
Cubes
fantaize
870
198ms
10 days ago
ln 2
fantaize
1,375
173ms
10 days ago
Hexagonal Spiral
fantaize
1,356
108ms
10 days ago
Christmas Trees
fantaize
336
147ms
10 days ago
Divisors
fantaize
🥇
78
121ms
10 days ago
brainfuck
fantaize
990
184ms
10 days ago
Day of Week
fantaize
581
196ms
10 days ago
Highly Composite Numbers
fantaize
1,651
227ms
10 days ago
Leyland Numbers
fantaize
981
214ms
10 days ago
Happy Numbers (Long)
fantaize
316
124ms
10 days ago
Card Number Validation
fantaize
330
198ms
10 days ago
Continued Fractions
fantaize
795
198ms
10 days ago
Happy Numbers
fantaize
290
124ms
10 days ago
24 Game
fantaize
1,003
494ms
10 days ago
Arrows
fantaize
718
167ms
10 days ago
Ascending Primes
fantaize
743
219ms
10 days ago
ASCII Table
fantaize
404
123ms
10 days ago