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
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
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Abundant Numbers
Steffan153
71
1,283ms
11 hours ago
Abundant Numbers (Long)
Steffan153
🥇
72
1,340ms
14 hours ago
Musical Chords
madex
399
1,303ms
36 hours ago
Minesweeper
madex
364
1,421ms
38 hours ago
Fractions
madex
231
1,335ms
39 hours ago
Musical Chords
Yewzir
1,066
1,449ms
44 hours ago
Happy Numbers (Long)
Yewzir
154
1,302ms
44 hours ago
Arithmetic Numbers
Yewzir
124
1,448ms
44 hours ago
Leap Years
Yewzir
58
1,373ms
44 hours ago
Niven Numbers (Long)
Yewzir
66
1,354ms
44 hours ago
Pernicious Numbers
Yewzir
45
1,333ms
44 hours ago
Niven Numbers
Yewzir
49
1,296ms
44 hours ago
PalindromemordnilaP
edsrzf
💎
138
1,303ms
2 days ago
π
JDiLenarda
244
1,470ms
3 days ago
Tower of Hanoi
fuzzylojik-golf
68
1,377ms
3 days ago
Tower of Hanoi
edsrzf
💎
61
1,327ms
4 days ago
Continued Fractions
edsrzf
💎
149
1,475ms
8 days ago
Topological Sort
albanian-laundromat
🥈
182
1,632ms
8 days ago
Minesweeper
retrohun
355
1,484ms
8 days ago
Musical Chords
kmathis22
1,035
1,437ms
9 days ago
Alphabetic Numbers
HumanoidCPU
3,902
1,251ms
10 days ago
Zeckendorf Representation
albanian-laundromat
🥈
159
1,463ms
10 days ago
Minesweeper
aksyristos
1,028
1,718ms
11 days ago
Continued Fractions
JDiLenarda
🥉
198
1,400ms
11 days ago
Continued Fractions
albanian-laundromat
🥈
175
1,497ms
12 days ago
Fibonacci
Steffan153
44
1,377ms
12 days ago
PalindromemordnilaP
dokutan
396
1,473ms
16 days ago
Odious Numbers
Steffan153
47
1,456ms
17 days ago
Niven Numbers
dokutan
🥇
48
1,424ms
17 days ago
Minesweeper
JOrE20
1,355
1,559ms
18 days ago
Musical Chords
JOrE20
4,159
1,682ms
23 days ago
ln 2
JOrE20
1,010
1,261ms
24 days ago
Fibonacci
Rambso
124
1,412ms
26 days ago
Day of Week
DialFrost
85
1,409ms
14 Feb 2026
Tutorial
janAkali
217
1,777ms
14 Feb 2026
Maze
JOrE20
1,287
1,861ms
13 Feb 2026
φ
JOrE20
1,010
1,290ms
11 Feb 2026
Rijndael S-box
JOrE20
775
1,279ms
10 Feb 2026
γ
JOrE20
1,010
1,277ms
10 Feb 2026
Multitap Input
edsrzf
💎
156
1,359ms
3 Feb 2026
Tutorial
FortuiteMan
217
1,844ms
3 Feb 2026
Fizz Buzz
YotaXP
103
1,323ms
3 Feb 2026
λ
edsrzf
🥈
228
1,587ms
2 Feb 2026
π
JOrE20
1,010
1,313ms
1 Feb 2026
Multitap Input
dokutan
🥉
552
1,389ms
1 Feb 2026
λ
JOrE20
1,010
1,346ms
30 Jan 2026
ROT13
JDiLenarda
162
1,473ms
30 Jan 2026
Calendar
JDiLenarda
🥈
285
1,482ms
30 Jan 2026
Prime Numbers
Andrey2001
80
1,372ms
29 Jan 2026
Kolakoski Constant
JOrE20
1,071
1,389ms
28 Jan 2026
Multitap Input
JDiLenarda
🥈
355
1,448ms
28 Jan 2026
π
Andrey2001
1,010
1,322ms
25 Jan 2026
Prime Numbers (Long)
DialFrost
67
2,069ms
24 Jan 2026
Prime Numbers
DialFrost
🥉
49
1,367ms
24 Jan 2026
Fibonacci
Andrey2001
70
1,351ms
23 Jan 2026
Fibonacci
prestosilver
234
1,398ms
23 Jan 2026
Calendar
edsrzf
💎
256
1,399ms
17 Jan 2026
Tutorial
Mefred
217
1,793ms
15 Jan 2026
Fizz Buzz
ivan-saratovskii
100
1,366ms
11 Jan 2026
Trinomial Triangle
KatieLG-Transpiler
2,078
1,371ms
9 Jan 2026
Tower of Hanoi
KatieLG-Transpiler
3,588
1,343ms
9 Jan 2026
Taxicab Numbers
KatieLG-Transpiler
4,171
1,359ms
9 Jan 2026
Sphenic Numbers
KatieLG-Transpiler
8,871
1,361ms
9 Jan 2026
Semiprime Numbers
KatieLG-Transpiler
12,800
1,310ms
9 Jan 2026
Polygon Triangulations
KatieLG-Transpiler
4,323
1,355ms
9 Jan 2026
Partition Numbers
KatieLG-Transpiler
658
1,321ms
9 Jan 2026
Odd Polyomino Tiling
KatieLG-Transpiler
21,442
1,292ms
9 Jan 2026
Mandelbrot
KatieLG-Transpiler
10,015
1,305ms
9 Jan 2026
Kaprekar Numbers
KatieLG-Transpiler
451
1,339ms
9 Jan 2026
Hilbert Curve
KatieLG-Transpiler
5,129
1,371ms
9 Jan 2026
Highly Composite Numbers
KatieLG-Transpiler
403
1,348ms
9 Jan 2026
Apéry’s Constant
KatieLG-Transpiler
1,010
1,329ms
9 Jan 2026
Quine
ndren
88
1,350ms
7 Jan 2026
Quine
CornerMercury
90
1,363ms
7 Jan 2026
Catalan’s Constant
JOrE20
1,071
1,365ms
6 Jan 2026
Gray Code Decoder
albanian-laundromat
88
1,607ms
5 Jan 2026
τ
JOrE20
1,071
1,394ms
4 Jan 2026
√2
JOrE20
1,070
1,483ms
4 Jan 2026
Tutorial
HumanoidCPU
90
1,669ms
1 Jan 2026
Calendar
Macweese
🥉
426
1,506ms
1 Jan 2026