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
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
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
ArkScript
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
ArkScript
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
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
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
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
Bytes
Time
Submitted
Tutorial
Mefred
123
5ms
13 hours ago
𝑒
KatieLG-Transpiler
1,009
3ms
7 days ago
√2
KatieLG-Transpiler
1,009
4ms
7 days ago
φ
KatieLG-Transpiler
1,009
4ms
7 days ago
τ
KatieLG-Transpiler
1,009
2ms
7 days ago
π
KatieLG-Transpiler
1,009
2ms
7 days ago
λ
KatieLG-Transpiler
1,009
3ms
7 days ago
γ
KatieLG-Transpiler
1,009
3ms
7 days ago
Van Eck Sequence
KatieLG-Transpiler
3,560
3ms
7 days ago
Vampire Numbers
KatieLG-Transpiler
1,231
3ms
7 days ago
Trinomial Triangle
KatieLG-Transpiler
2,092
3ms
7 days ago
Tower of Hanoi
KatieLG-Transpiler
4,093
3ms
7 days ago
Tongue-twisters
KatieLG-Transpiler
542
3ms
7 days ago
Taxicab Numbers
KatieLG-Transpiler
4,650
3ms
7 days ago
Sphenic Numbers
KatieLG-Transpiler
10,665
3ms
7 days ago
Smith Numbers
KatieLG-Transpiler
2,205
3ms
7 days ago
Sierpiński Triangle
KatieLG-Transpiler
575
3ms
7 days ago
Semiprime Numbers
KatieLG-Transpiler
15,419
3ms
7 days ago
Rule 110
KatieLG-Transpiler
15,957
3ms
7 days ago
Rijndael S-box
KatieLG-Transpiler
789
3ms
7 days ago
Recamán
KatieLG-Transpiler
1,152
3ms
7 days ago
Prime Numbers (Long)
KatieLG-Transpiler
7,182
3ms
7 days ago
Prime Numbers
KatieLG-Transpiler
101
3ms
7 days ago
Polyominoes
KatieLG-Transpiler
4,835
2ms
7 days ago
Polygon Triangulations
KatieLG-Transpiler
4,513
3ms
7 days ago
Pernicious Numbers (Long)
KatieLG-Transpiler
24,919
3ms
7 days ago
Pernicious Numbers
KatieLG-Transpiler
140
3ms
7 days ago
Pascal’s Triangle
KatieLG-Transpiler
794
3ms
7 days ago
Partition Numbers
KatieLG-Transpiler
752
3ms
7 days ago
Odious Numbers (Long)
KatieLG-Transpiler
2,450
2ms
7 days ago
Odious Numbers
KatieLG-Transpiler
104
2ms
7 days ago
Number Spiral
KatieLG-Transpiler
315
3ms
7 days ago
Niven Numbers (Long)
KatieLG-Transpiler
8,981
3ms
7 days ago
Niven Numbers
KatieLG-Transpiler
129
3ms
7 days ago
N Queens
KatieLG-Transpiler
1,399
2ms
7 days ago
Mandelbrot
KatieLG-Transpiler
10,050
2ms
7 days ago
Lucky Numbers
KatieLG-Transpiler
5,825
3ms
7 days ago
Look and Say
KatieLG-Transpiler
1,304
3ms
7 days ago
ln 2
KatieLG-Transpiler
1,009
2ms
7 days ago
Leyland Numbers
KatieLG-Transpiler
998
3ms
7 days ago
Leap Years
KatieLG-Transpiler
881
2ms
7 days ago
Kolakoski Sequence
KatieLG-Transpiler
2,006
3ms
7 days ago
Kolakoski Constant
KatieLG-Transpiler
1,009
3ms
7 days ago
Kaprekar Numbers
KatieLG-Transpiler
513
4ms
7 days ago
Inventory Sequence
KatieLG-Transpiler
3,628
3ms
7 days ago
Hilbert Curve
KatieLG-Transpiler
5,155
3ms
7 days ago
Highly Composite Numbers
KatieLG-Transpiler
458
3ms
7 days ago
Hexagonal Spiral
KatieLG-Transpiler
1,375
3ms
7 days ago
Happy Numbers (Long)
KatieLG-Transpiler
700
3ms
7 days ago
Happy Numbers
KatieLG-Transpiler
144
3ms
7 days ago
Gijswijt’s Sequence
KatieLG-Transpiler
3,005
3ms
7 days ago
Foo Fizz Buzz Bar
KatieLG-Transpiler
6,724
3ms
7 days ago
Fizz Buzz
KatieLG-Transpiler
518
3ms
7 days ago
Fibonacci
KatieLG-Transpiler
170
3ms
7 days ago
Farey Sequence
KatieLG-Transpiler
5,134
3ms
7 days ago
Factorial Factorisation
KatieLG-Transpiler
868
3ms
7 days ago
Evil Numbers (Long)
KatieLG-Transpiler
2,456
3ms
7 days ago
Evil Numbers
KatieLG-Transpiler
100
3ms
7 days ago
Emirp Numbers (Long)
KatieLG-Transpiler
1,401
3ms
7 days ago
Emirp Numbers
KatieLG-Transpiler
177
3ms
7 days ago
Divisors
KatieLG-Transpiler
1,271
3ms
7 days ago
Diamonds
KatieLG-Transpiler
1,197
3ms
7 days ago
Cubes
KatieLG-Transpiler
4,217
2ms
7 days ago
Collatz
KatieLG-Transpiler
4,231
2ms
7 days ago
Christmas Trees
KatieLG-Transpiler
605
2ms
7 days ago
Catalan’s Constant
KatieLG-Transpiler
1,009
3ms
7 days ago
Catalan Numbers
KatieLG-Transpiler
2,977
2ms
7 days ago
Ascending Primes
KatieLG-Transpiler
617
3ms
7 days ago
Arithmetic Numbers
KatieLG-Transpiler
45,335
3ms
7 days ago
Apéry’s Constant
KatieLG-Transpiler
1,009
2ms
7 days ago
Abundant Numbers (Long)
KatieLG-Transpiler
1,215
2ms
7 days ago
Abundant Numbers
KatieLG-Transpiler
214
3ms
7 days ago
99 Bottles of Beer
KatieLG-Transpiler
12,189
2ms
7 days ago
24 Game
KatieLG-Transpiler
13,799
3ms
7 days ago
12 Days of Christmas
KatieLG-Transpiler
2,487
2ms
7 days ago
𝑒
JOrE20
1,009
2ms
10 days ago
Tutorial
HumanoidCPU
53
4ms
15 days ago
Pernicious Numbers
snoozingnewt
41
3ms
8 Dec 2025
Happy Numbers
DialFrost
65
3ms
4 Dec 2025
Arithmetic Numbers
DialFrost
47
12ms
4 Dec 2025