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
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
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
Intersection
emgordon154
🥈
156
98ms
a min ago
Foo Fizz Buzz Bar
Murphy4444
82
236ms
3 mins ago
Mandelbrot
albanian-laundromat
158
154ms
4 mins ago
γ
albanian-laundromat
234
4,437ms
6 mins ago
Mandelbrot
albanian-laundromat
145
92ms
8 mins ago
Smith Numbers
sean-niemann
💎
101
4,813ms
14 mins ago
Binary Lambda Calculus
bitsandbeyond
218
347ms
16 mins ago
π
CornerMercury
35
177ms
16 mins ago
Prime Numbers
snoozingnewt
115
3ms
16 mins ago
Tower of Hanoi
MeWhenI
🥈
88
9ms
21 mins ago
Tower of Hanoi
GrayJoKing
💎
87
9ms
23 mins ago
Diamonds
TJK-S
247
10ms
30 mins ago
Pernicious Numbers
snoozingnewt
🥇
24
94ms
40 mins ago
Tower of Hanoi
hiichbindermax
61
12ms
43 mins ago
Pernicious Numbers
snoozingnewt
🥇
47
97ms
48 mins ago
Intersection
frankgraziano
🥈
309
12ms
60 mins ago
Rijndael S-box
FortuiteMan
231
50ms
62 mins ago
Pernicious Numbers
snoozingnewt
140
11ms
70 mins ago
Pernicious Numbers
snoozingnewt
🥇
29
33ms
74 mins ago
Tower of Hanoi
GrayJoKing
💎
47
86ms
74 mins ago
Evil Numbers (Long)
GodlyProgrammer1
114
2ms
79 mins ago
Tower of Hanoi
GrayJoKing
51
33ms
81 mins ago
Pernicious Numbers
snoozingnewt
308
2ms
85 mins ago
Pernicious Numbers
snoozingnewt
🥇
33
2ms
86 mins ago
Pernicious Numbers
snoozingnewt
53
41ms
94 mins ago
Pernicious Numbers
snoozingnewt
🥇
41
149ms
104 mins ago
Tower of Hanoi
jared-hughes
59
11ms
108 mins ago
Tower of Hanoi
aksyristos
123
55ms
110 mins ago
12 Days of Christmas
ryyyn
424
10ms
113 mins ago
Intersection
Lv0Sys
135
10ms
2 hours ago
Emirp Numbers (Long)
rucin93
87
1,077ms
2 hours ago
Hexdump
rucin93
219
4ms
2 hours ago
Fibonacci
matejmatik123
55
379ms
2 hours ago
Tongue-twisters
Lv0Sys
367
9ms
2 hours ago
Fizz Buzz
ryyyn
🥇
58
10ms
2 hours ago
Tongue-twisters
Lv0Sys
462
10ms
2 hours ago
Transpose Sentence
AdrienHache
🥈
44
51ms
2 hours ago
Tower of Hanoi
JOrE20
198
35ms
2 hours ago
Tower of Hanoi
edsrzf
💎
118
403ms
2 hours ago
Sudoku
ryyyn
404
495ms
2 hours ago
Tower of Hanoi
luuumine
51
9ms
2 hours ago
Leyland Numbers
Lv0Sys
99
10ms
2 hours ago
Factorial Factorisation
JOrE20
708
37ms
2 hours ago
Leyland Numbers
Lv0Sys
67
33ms
2 hours ago
Gijswijt’s Sequence
JOrE20
252
2ms
2 hours ago
Lucky Tickets
canissimia
💎
65
5ms
2 hours ago
Gijswijt’s Sequence
JOrE20
170
35ms
2 hours ago
Gijswijt’s Sequence
JOrE20
293
2ms
2 hours ago
Tower of Hanoi
DialFrost
🥉
136
391ms
2 hours ago
Trinomial Triangle
JOrE20
🥈
1,714
7ms
2 hours ago
Leyland Numbers
Lv0Sys
58
921ms
2 hours ago
Leyland Numbers
Lv0Sys
84
10ms
2 hours ago
Happy Numbers
ryyyn
68
9ms
3 hours ago
Abundant Numbers
JOrE20
189
9ms
3 hours ago
Ascending Primes
JOrE20
431
9ms
3 hours ago
Happy Numbers (Long)
ryyyn
80
260ms
3 hours ago
λ
JOrE20
944
10ms
3 hours ago
λ
JOrE20
946
39ms
3 hours ago
Kolakoski Constant
JOrE20
937
39ms
3 hours ago
Kolakoski Constant
JOrE20
934
10ms
3 hours ago
Emojify
kg583
132
587ms
3 hours ago
Emojify
kg583
140
10ms
3 hours ago
CSS Colors
Lv0Sys
2,612
11ms
3 hours ago
brainfuck
JOrE20
429
12ms
3 hours ago
Tower of Hanoi
KrausRaus
54
10ms
3 hours ago
Pernicious Numbers
snoozingnewt
🥇
24
4ms
3 hours ago
Divisors
snoozingnewt
🥇
68
2ms
3 hours ago
Pernicious Numbers
snoozingnewt
🥇
41
2ms
3 hours ago
Evil Numbers
ryyyn
🥇
40
10ms
3 hours ago
Odious Numbers
ryyyn
🥇
40
10ms
3 hours ago
Odious Numbers (Long)
ryyyn
🥇
41
11ms
3 hours ago
Day of Week
snoozingnewt
82
312ms
3 hours ago
Trinomial Triangle
canissimia
💎
56
2ms
3 hours ago
Partition Numbers
jkelly467
129
2,067ms
3 hours ago
brainfuck
JOrE20
197
11ms
3 hours ago