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
Lily
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
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
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
Chars
Time
Submitted
Diamonds
tomh1012
241
1,187ms
25 mins ago
Partition Numbers
edsrzf
59
1,283ms
19 hours ago
Time Distance
anter69
216
1,237ms
21 hours ago
Multitap Input
error256
79
1,325ms
25 hours ago
Pangram Grep
HumanoidCPU
84
1,438ms
36 hours ago
Multitap Input
emgordon154
🥉
74
1,213ms
2 days ago
Look and Say
edsrzf
🥇
55
1,316ms
2 days ago
Pascal’s Triangle
edsrzf
57
1,266ms
3 days ago
Ten-pin Bowling
edsrzf
💎
97
1,423ms
3 days ago
Musical Chords
sean-niemann
101
1,369ms
3 days ago
Continued Fractions
anter69
99
1,333ms
4 days ago
Gray Code Decoder
anter69
47
1,370ms
4 days ago
Reverse Polish Notation
edsrzf
112
1,372ms
5 days ago
United States
JayXon
🥈
86
2,182ms
5 days ago
Prime Numbers (Long)
error256
🥇
39
1,348ms
5 days ago
Prime Numbers
error256
36
1,291ms
5 days ago
Tutorial
FortuiteMan
135
1,949ms
6 days ago
Diamonds
Andrey2001
1,109
1,255ms
6 days ago
brainfuck
emgordon154
191
1,319ms
7 days ago
Fizz Buzz
albanian-laundromat
66
1,322ms
7 days ago
𝑒
anter69
81
1,269ms
7 days ago
United States
anter69
95
1,578ms
7 days ago
π
JOrE20
1,009
1,287ms
7 days ago
τ
JOrE20
1,009
1,263ms
7 days ago
Multitap Input
dokutan
432
1,283ms
8 days ago
Christmas Trees
mwarvik
605
1,280ms
8 days ago
Christmas Trees
h3ra993huskp
103
1,262ms
8 days ago
Christmas Trees
qpwoeirut
106
1,260ms
8 days ago
Christmas Trees
vhoulbreque
929
1,254ms
9 days ago
Christmas Trees
jared-hughes
77
1,262ms
9 days ago
PalindromemordnilaP
edsrzf
🥈
52
1,291ms
9 days ago
Christmas Trees
Mefred
112
1,252ms
9 days ago
Hexdump
edsrzf
🥉
119
1,485ms
9 days ago
Rock-paper-scissors-Spock-lizard
error256
169
1,990ms
9 days ago
Christmas Trees
kmathis22
96
1,201ms
9 days ago
Ascending Primes
anter69
80
1,725ms
9 days ago
Christmas Trees
plcc0
65
1,255ms
9 days ago
Multitap Input
pardouin
🥇
64
1,286ms
10 days ago
Calendar
edsrzf
💎
155
1,509ms
10 days ago
Ten-pin Bowling
JayXon
🥈
98
1,258ms
10 days ago
Forsyth–Edwards Notation
JayXon
🥇
86
1,265ms
10 days ago
Ordinal Numbers
edsrzf
59
1,289ms
10 days ago
Reversi
edsrzf
🥇
90
1,545ms
10 days ago
Forsyth–Edwards Notation
edsrzf
🥇
86
1,427ms
10 days ago
Rule 110
edsrzf
91
1,363ms
10 days ago
Multitap Input
edsrzf
🥇
64
1,267ms
10 days ago
SI Units
edsrzf
🥈
403
1,621ms
10 days ago
Christmas Trees
madex
85
1,229ms
10 days ago
Christmas Trees
nstearns96
87
1,233ms
10 days ago
Christmas Trees
FEZfan
165
1,197ms
11 days ago
Prime Numbers
Andrey2001
77
1,247ms
11 days ago
Christmas Trees
emgordon154
63
1,150ms
11 days ago
Christmas Trees
Andrey2001
551
1,154ms
11 days ago
Kolakoski Constant
JOrE20
1,009
1,203ms
12 days ago
Multitap Input
D-MOVE
84
1,292ms
12 days ago
Christmas Trees
SirBogman
61
1,581ms
12 days ago
Christmas Trees
Openstreetmapler
67
1,311ms
12 days ago
Christmas Trees
AstroOrbis
89
1,202ms
13 days ago
Christmas Trees
rucin93
551
1,171ms
13 days ago
Christmas Trees
AdrienHache
562
1,273ms
13 days ago
Christmas Trees
tomh1012
101
1,254ms
14 days ago
Christmas Trees
Matter1024
68
1,215ms
14 days ago
Christmas Trees
error256
58
1,237ms
14 days ago
Christmas Trees
DialFrost
58
1,246ms
14 days ago
Christmas Trees
FortuiteMan
71
1,294ms
14 days ago
Christmas Trees
BREMAUCY
90
1,408ms
14 days ago
Christmas Trees
bitsandbeyond
84
1,345ms
14 days ago
Christmas Trees
klixel
551
1,314ms
14 days ago
Christmas Trees
blaztoma
63
1,292ms
14 days ago
Divisors
albanian-laundromat
50
1,415ms
14 days ago
Christmas Trees
scpchicken
212
1,278ms
14 days ago
Christmas Trees
albanian-laundromat
62
1,306ms
14 days ago
Christmas Trees
Andriamanitra
68
1,250ms
14 days ago
Christmas Trees
snoozingnewt
68
1,210ms
14 days ago
Christmas Trees
edsrzf
58
1,250ms
14 days ago
Christmas Trees
GolfingSuccess
551
1,288ms
14 days ago
π
Andrey2001
1,009
1,219ms
15 days ago
Zeckendorf Representation
anter69
112
1,291ms
16 days ago
Fizz Buzz
Msleizak
161
1,252ms
17 days ago
Set
error256
💎
84
1,508ms
18 days ago