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
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
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
Multitap Input
ovs-code
53
3ms
a min ago
Multitap Input
bitsandbeyond
761
286ms
a min ago
Polyominoes
HumanoidCPU
12,799
17ms
2 mins ago
Multitap Input
Mukundan314
108
29ms
2 mins ago
Pascal’s Triangle
llPlayll
92
10ms
8 mins ago
99 Bottles of Beer
llPlayll
389
10ms
11 mins ago
γ
sean-niemann
120
494ms
18 mins ago
γ
sean-niemann
120
94ms
20 mins ago
Catalan Numbers
DialFrost
🥈
71
102ms
22 mins ago
Fizz Buzz
llPlayll
124
9ms
24 mins ago
Mahjong
bitsandbeyond
786
2ms
28 mins ago
Mahjong
sean-niemann
229
807ms
33 mins ago
π
llPlayll
318
68ms
41 mins ago
Topological Sort
sean-niemann
141
530ms
41 mins ago
Kaprekar Numbers
sean-niemann
128
2,574ms
44 mins ago
Hilbert Curve
sean-niemann
407
1,470ms
44 mins ago
Prime Numbers (Long)
edsrzf
🥉
80
445ms
45 mins ago
Hilbert Curve
sean-niemann
407
11ms
45 mins ago
Sudoku (Fill-in)
Lv0Sys
831
42ms
48 mins ago
Tower of Hanoi
JDiLenarda
313
1,254ms
53 mins ago
Catalan Numbers
edsrzf
💎
69
95ms
55 mins ago
Multitap Input
GolfingSuccess
160
11ms
61 mins ago
Tutorial
llPlayll
67
12ms
74 mins ago
Hilbert Curve
Yax42
373
408ms
92 mins ago
Leyland Numbers
emgordon154
💎
117
99ms
95 mins ago
Van Eck Sequence
emgordon154
110
105ms
101 mins ago
Kaprekar Numbers
emgordon154
🥈
159
4,069ms
2 hours ago
λ
sean-niemann
178
476ms
2 hours ago
Sudoku (Fill-in)
Lv0Sys
691
20ms
2 hours ago
Recamán
canissimia
🥇
47
2ms
2 hours ago
Topological Sort
albanian-laundromat
🥈
569
48ms
2 hours ago
λ
sean-niemann
170
130ms
2 hours ago
λ
sean-niemann
195
53ms
2 hours ago
Tutorial
Languag3
65
10ms
2 hours ago
Maze
emgordon154
💎
139
233ms
2 hours ago
λ
sean-niemann
178
137ms
2 hours ago
Kolakoski Constant
emgordon154
💎
174
101ms
2 hours ago
Polyominoes
HumanoidCPU
3,572
3ms
2 hours ago
Emirp Numbers (Long)
emgordon154
💎
134
486ms
2 hours ago
Tutorial
Languag3
132
2ms
2 hours ago
τ
Languag3
1,011
10ms
2 hours ago
Day of Week
Languag3
🥇
85
14ms
2 hours ago
Diamonds
Languag3
89
10ms
3 hours ago
United States
Languag3
608
10ms
3 hours ago
Ten-pin Bowling
blaztoma
188
30ms
3 hours ago
SI Units
sean-niemann
🥉
408
588ms
3 hours ago
SI Units
sean-niemann
418
20ms
3 hours ago
Pascal’s Triangle
Languag3
58
10ms
3 hours ago
Partition Numbers
CutSandstone
163
36ms
3 hours ago
Niven Numbers (Long)
albanian-laundromat
263
63ms
3 hours ago
Collatz
Languag3
71
23ms
4 hours ago
Mandelbrot
albanian-laundromat
184
253ms
4 hours ago
Niven Numbers
Languag3
46
10ms
4 hours ago
Abundant Numbers (Long)
sunleonid
65
47ms
4 hours ago
ISBN
albanian-laundromat
367
12ms
4 hours ago
Intersection
albanian-laundromat
🥉
449
14ms
4 hours ago
Happy Numbers (Long)
HPWiz
73
130ms
4 hours ago
Tic-tac-toe
albanian-laundromat
🥈
392
15ms
4 hours ago
Lucky Numbers
albanian-laundromat
344
3,128ms
4 hours ago
Catalan Numbers
albanian-laundromat
🥈
564
23ms
4 hours ago
Minesweeper
sean-niemann
🥈
163
397ms
4 hours ago
Game of Life
albanian-laundromat
💎
373
11ms
5 hours ago
Topological Sort
sean-niemann
🥉
200
416ms
5 hours ago
Reverse Polish Notation
DialFrost
💎
149
94ms
5 hours ago
Trinomial Triangle
albanian-laundromat
💎
284
12ms
5 hours ago
Recamán
albanian-laundromat
🥉
224
12ms
5 hours ago
Happy Numbers (Long)
snoozingnewt
74
150ms
5 hours ago
Evil Numbers
snoozingnewt
110
12ms
5 hours ago
Odious Numbers
snoozingnewt
113
11ms
5 hours ago
Emirp Numbers
snoozingnewt
176
11ms
5 hours ago
Happy Numbers
snoozingnewt
147
11ms
5 hours ago
Abundant Numbers
snoozingnewt
203
11ms
5 hours ago
Prime Numbers
snoozingnewt
111
11ms
5 hours ago
Happy Numbers
snoozingnewt
73
133ms
5 hours ago
Lucky Numbers
canissimia
🥇
60
63ms
5 hours ago