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
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
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
Calendar
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
Multitap Input
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
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
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
Calendar
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
Multitap Input
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
Arrows
snoozingnewt
146
573ms
5 hours ago
Arithmetic Numbers
jkelly467
104
395ms
13 hours ago
Seven Segment
kmathis22
216
320ms
14 hours ago
Foo Fizz Buzz Bar
Maashau
142
348ms
20 hours ago
Niven Numbers (Long)
CaedenHarper
80
570ms
33 hours ago
Look and Say
kmathis22
167
1,031ms
33 hours ago
Rock-paper-scissors-Spock-lizard
kmathis22
305
472ms
36 hours ago
Repeating Decimals
kmathis22
288
752ms
38 hours ago
Medal Tally
kmathis22
284
539ms
38 hours ago
Fizz Buzz
Maashau
97
415ms
42 hours ago
λ
edsrzf
293
1,317ms
45 hours ago
Niven Numbers (Long)
b-illy
🥈
79
543ms
2 days ago
SI Units
sean-niemann
691
707ms
2 days ago
Quine
CornerMercury
🥇
102
504ms
2 days ago
Sierpiński Triangle
kmathis22
104
451ms
2 days ago
Kolakoski Sequence
kmathis22
113
468ms
2 days ago
Repeating Decimals
TheZwierzLF
1,434
505ms
2 days ago
Day of Week
kmathis22
86
499ms
2 days ago
τ
kmathis22
204
488ms
2 days ago
π
kmathis22
204
522ms
2 days ago
Spelling Numbers
kmathis22
394
536ms
2 days ago
Arabic to Roman
kmathis22
221
560ms
2 days ago
Billiards
kmathis22
313
530ms
2 days ago
Pascal’s Triangle
kmathis22
98
450ms
2 days ago
Cubes
dokutan
380
481ms
2 days ago
Tower of Hanoi
h3ra993huskp
130
491ms
3 days ago
Arithmetic Numbers
sean-niemann
🥈
100
628ms
3 days ago
Trinomial Triangle
kmathis22
149
615ms
3 days ago
Factorial Factorisation
kmathis22
137
598ms
3 days ago
Emojify
kmathis22
231
685ms
3 days ago
Farey Sequence
kmathis22
113
542ms
3 days ago
Ten-pin Bowling
kmathis22
404
442ms
3 days ago
Time Distance
kmathis22
330
469ms
3 days ago
Mandelbrot
kmathis22
195
456ms
3 days ago
Lucky Numbers
kmathis22
176
473ms
3 days ago
Leap Years
kmathis22
71
458ms
3 days ago
Scrambled Sort
edsrzf
🥇
178
500ms
3 days ago
Scrambled Sort
sean-niemann
🥇
178
502ms
3 days ago
Kolakoski Constant
kmathis22
223
681ms
4 days ago
ln 2
kmathis22
196
475ms
4 days ago
𝑒
kmathis22
133
465ms
4 days ago
√2
kmathis22
🥇
65
447ms
4 days ago
φ
kmathis22
🥈
95
435ms
4 days ago
Game of Life
kmathis22
221
437ms
4 days ago
Hexagonal Spiral
dokutan
524
430ms
4 days ago
24 Game
dokutan
3,332
439ms
4 days ago
99 Bottles of Beer
snoozingnewt
327
473ms
4 days ago
Ascending Primes
snoozingnewt
132
759ms
4 days ago
Card Number Validation
snoozingnewt
170
435ms
4 days ago
Emirp Numbers
snoozingnewt
163
432ms
4 days ago
Emirp Numbers (Long)
snoozingnewt
163
421ms
4 days ago
Factorial Factorisation
snoozingnewt
144
432ms
4 days ago
Farey Sequence
snoozingnewt
133
419ms
4 days ago
N Queens
snoozingnewt
232
431ms
4 days ago
Happy Numbers (Long)
snoozingnewt
111
387ms
4 days ago
Partition Numbers
snoozingnewt
122
421ms
4 days ago
Tongue-twisters
snoozingnewt
386
434ms
4 days ago
Pernicious Numbers (Long)
snoozingnewt
🥈
75
449ms
4 days ago
Prime Numbers
snoozingnewt
86
419ms
4 days ago
Prime Numbers (Long)
snoozingnewt
86
440ms
4 days ago
Transpose Sentence
snoozingnewt
174
437ms
4 days ago
Minesweeper
kmathis22
241
1,277ms
4 days ago
Diamonds
DardS8Br
138
421ms
4 days ago
Arrows
kmathis22
149
1,393ms
4 days ago
Ascending Primes
kmathis22
144
1,214ms
4 days ago
Lucky Tickets
kmathis22
248
918ms
4 days ago
Quine
JOrE20
172
783ms
4 days ago
Fizz Buzz
JOrE20
98
833ms
4 days ago
Topological Sort
sean-niemann
202
514ms
5 days ago
Hexdump
kmathis22
320
407ms
5 days ago
SI Units
CaedenHarper
619
866ms
5 days ago
Musical Chords
sean-niemann
234
369ms
6 days ago
Niven Numbers
snoozingnewt
🥇
65
352ms
6 days ago
Trinomial Triangle
sean-niemann
139
367ms
6 days ago
Star Wars GPT
sean-niemann
🥉
247
453ms
6 days ago