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
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
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
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
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
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
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
Quine
JOrE20
47
146ms
2 days ago
Seven Segment
JOrE20
204
211ms
3 days ago
Kolakoski Constant
JOrE20
1,011
156ms
3 days ago
Fibonacci
Andrey2001
51
191ms
3 days ago
Multitap Input
antimon2
💎
79
322ms
3 days ago
Tongue-twisters
JOrE20
358
313ms
4 days ago
Kaprekar Numbers
blaztoma
74
665ms
6 days ago
π
Andrey2001
1,011
150ms
6 days ago
Fizz Buzz
vhoulbreque
93
190ms
7 days ago
Sudoku
ovs-code
💎
283
2,704ms
7 days ago
Trinomial Triangle
antimon2
🥇
59
565ms
9 days ago
Set
error256
🥇
89
641ms
11 days ago
Tower of Hanoi
antimon2
🥇
45
296ms
12 days ago
Zodiac Signs
antimon2
110
465ms
12 days ago
Arithmetic Numbers
blaztoma
🥇
47
732ms
14 days ago
United States
antimon2
143
294ms
15 days ago
Tutorial
Mefred
135
257ms
16 days ago
Mandelbrot
JayXon
💎
83
672ms
18 days ago
Gray Code Decoder
error256
49
334ms
18 days ago
Mandelbrot
error256
97
604ms
18 days ago
Mandelbrot
antimon2
🥈
84
629ms
18 days ago
Fibonacci
bitsandbeyond
52
183ms
20 days ago
Fibonacci
CornerMercury
56
150ms
20 days ago
Fibonacci
Emutis
64
175ms
20 days ago
Prime Numbers (Long)
blaztoma
45
491ms
20 days ago
Fibonacci
KasperKivimaeki
51
167ms
21 days ago
Trinomial Triangle
KatieLG-Transpiler
2,146
167ms
23 days ago
Tower of Hanoi
KatieLG-Transpiler
4,147
181ms
23 days ago
Tic-tac-toe
KatieLG-Transpiler
25,091
953ms
23 days ago
Taxicab Numbers
KatieLG-Transpiler
4,704
160ms
23 days ago
Sphenic Numbers
KatieLG-Transpiler
10,719
166ms
23 days ago
Semiprime Numbers
KatieLG-Transpiler
15,473
165ms
23 days ago
Polygon Triangulations
KatieLG-Transpiler
4,567
156ms
23 days ago
Partition Numbers
KatieLG-Transpiler
806
151ms
23 days ago
Odd Polyomino Tiling
KatieLG-Transpiler
21,697
141ms
23 days ago
Mandelbrot
KatieLG-Transpiler
10,104
152ms
23 days ago
Kaprekar Numbers
KatieLG-Transpiler
567
152ms
23 days ago
Hilbert Curve
KatieLG-Transpiler
5,209
143ms
23 days ago
Highly Composite Numbers
KatieLG-Transpiler
512
170ms
23 days ago
Hexagonal Spiral
KatieLG-Transpiler
1,429
171ms
23 days ago
Floyd-Steinberg Dithering
KatieLG-Transpiler
67,171
187ms
23 days ago
Flags
KatieLG-Transpiler
6,584
330ms
23 days ago
CSS Colors (Inverse)
KatieLG-Transpiler
3,515
267ms
23 days ago
Billiards
KatieLG-Transpiler
15,308
278ms
23 days ago
Apéry’s Constant
KatieLG-Transpiler
1,059
147ms
23 days ago
Abundant Numbers (Long)
Daniel-Ellison
🥇
37
622ms
23 days ago
Abundant Numbers
Daniel-Ellison
🥇
36
578ms
23 days ago
Calendar
antimon2
🦄
176
304ms
23 days ago
Fibonacci
Daniel-Ellison
36
642ms
24 days ago
Catalan’s Constant
JOrE20
1,011
155ms
25 days ago
Collatz
prestosilver
69
259ms
26 days ago
τ
JOrE20
1,011
162ms
27 days ago
√2
JOrE20
1,011
142ms
27 days ago
φ
JOrE20
1,011
152ms
27 days ago
π
JOrE20
1,011
153ms
27 days ago
ln 2
JOrE20
1,011
139ms
27 days ago
Fizz Buzz
JOrE20
68
223ms
29 Dec 2025
γ
JOrE20
53
1,959ms
29 Dec 2025
Tower of Hanoi
KatieLG
337
143ms
28 Dec 2025
Trinomial Triangle
error256
🥇
59
429ms
25 Dec 2025
Hexagonal Spiral
bitsandbeyond
236
221ms
24 Dec 2025
Zeckendorf Representation
JOrE20
154
232ms
24 Dec 2025
Tower of Hanoi
JayXon
🥇
45
333ms
20 Dec 2025
Tower of Hanoi
sean-niemann
🥇
45
330ms
20 Dec 2025
Smooth Numbers
ovs-code
59
887ms
17 Dec 2025
Smooth Numbers
GolfingSuccess
61
2,069ms
17 Dec 2025
π
kurkale6ka
49
1,923ms
15 Dec 2025
λ
JOrE20
1,011
151ms
12 Dec 2025
Foo Fizz Buzz Bar
BREMAUCY
89
239ms
11 Dec 2025
Niven Numbers (Long)
snoozingnewt
43
355ms
10 Dec 2025
Kaprekar Numbers
Lv0Sys
60
1,272ms
10 Dec 2025
Arrows
snoozingnewt
122
225ms
10 Dec 2025
Continued Fractions
Shanethegamer
129
355ms
9 Dec 2025
Quine
CornerMercury
🥇
32
346ms
8 Dec 2025
Odious Numbers (Long)
Lv0Sys
42
314ms
7 Dec 2025
τ
ndren
72
220ms
7 Dec 2025
Niven Numbers (Long)
Lv0Sys
43
375ms
7 Dec 2025
γ
CornerMercury
49
223ms
7 Dec 2025
φ
BREMAUCY
🥇
37
171ms
6 Dec 2025
𝑒
BREMAUCY
🥇
31
206ms
6 Dec 2025