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
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
Tower of Hanoi
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
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
Tower of Hanoi
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Rijndael S-box
ovs-code
💎
145
114ms
3 hours ago
Rijndael S-box
snoozingnewt
🥉
158
77ms
8 hours ago
Taxicab Numbers
HumanoidCPU
4,166
75ms
23 hours ago
Rijndael S-box
DialFrost
🥈
150
72ms
26 hours ago
Spelling Numbers
DialFrost
🥉
396
83ms
29 hours ago
Scrambled Sort
AidanWalter
779
112ms
30 hours ago
Taxicab Numbers
Shanethegamer
4,166
77ms
42 hours ago
Fibonacci
Andrey2001
44
73ms
2 days ago
Time Distance
DialFrost
🥈
262
111ms
3 days ago
Ten-pin Bowling
DialFrost
🥉
215
106ms
3 days ago
12 Days of Christmas
snoozingnewt
465
70ms
4 days ago
12 Days of Christmas
kayaulai
561
74ms
4 days ago
Tutorial
kayaulai
63
83ms
4 days ago
Tower of Hanoi
MeWhenI
71
78ms
4 days ago
Lucky Tickets
DialFrost
💎
110
127ms
4 days ago
Repeating Decimals
DialFrost
🥈
236
100ms
4 days ago
Vampire Numbers
DialFrost
🥈
159
490ms
4 days ago
Number Spiral
DialFrost
92
75ms
5 days ago
Lucky Tickets
snoozingnewt
🥉
136
110ms
5 days ago
Zodiac Signs
snoozingnewt
🥈
179
136ms
5 days ago
Forsyth–Edwards Notation
DialFrost
🥈
144
95ms
5 days ago
Medal Tally
DialFrost
🥈
127
114ms
5 days ago
Medal Tally
snoozingnewt
🥈
127
103ms
5 days ago
Trinomial Triangle
snoozingnewt
🥉
57
73ms
5 days ago
ISBN
snoozingnewt
89
75ms
5 days ago
Jacobi Symbol
snoozingnewt
🥉
148
103ms
5 days ago
Billiards
snoozingnewt
🥈
217
103ms
5 days ago
Topological Sort
snoozingnewt
🥈
129
301ms
5 days ago
Topological Sort
DialFrost
🥉
131
118ms
5 days ago
Transpose Sentence
DialFrost
🥈
89
420ms
5 days ago
Jacobi Symbol
DialFrost
🥈
142
103ms
5 days ago
Transpose Sentence
snoozingnewt
🥉
92
116ms
5 days ago
Zeckendorf Representation
DialFrost
🥇
97
77ms
5 days ago
Zeckendorf Representation
snoozingnewt
🥇
97
76ms
5 days ago
Reversi
snoozingnewt
🥉
200
83ms
5 days ago
brainfuck
snoozingnewt
190
629ms
5 days ago
PalindromemordnilaP
snoozingnewt
🥈
110
75ms
5 days ago
Catalan’s Constant
snoozingnewt
🥉
384
3,863ms
5 days ago
τ
snoozingnewt
193
279ms
5 days ago
ln 2
snoozingnewt
🥉
176
335ms
5 days ago
π
snoozingnewt
199
212ms
5 days ago
Kolakoski Constant
snoozingnewt
🥈
155
1,011ms
5 days ago
φ
snoozingnewt
197
233ms
5 days ago
√2
snoozingnewt
🥉
178
147ms
5 days ago
𝑒
snoozingnewt
96
352ms
5 days ago
Morse Decoder
snoozingnewt
🥉
296
81ms
5 days ago
Continued Fractions
ovs-code
113
78ms
6 days ago
Number Spiral
snoozingnewt
100
66ms
6 days ago
Poker
snoozingnewt
🥈
329
191ms
6 days ago
Game of Life
snoozingnewt
🥈
159
133ms
6 days ago
Maze
snoozingnewt
🥉
226
102ms
6 days ago
Proximity Grid
snoozingnewt
223
114ms
6 days ago
Mahjong
snoozingnewt
🥈
297
89ms
6 days ago
Polyominoes
snoozingnewt
🥈
292
171ms
6 days ago
24 Game
snoozingnewt
🥈
246
4,796ms
6 days ago
Star Wars GPT
snoozingnewt
🥉
133
172ms
6 days ago
Sudoku
snoozingnewt
🥉
618
255ms
6 days ago
Levenshtein Distance
snoozingnewt
56
110ms
6 days ago
Sudoku (Fill-in)
snoozingnewt
🥉
258
107ms
6 days ago
Pangram Grep
snoozingnewt
63
104ms
6 days ago
United States
snoozingnewt
🥇
63
75ms
6 days ago
24 Game
DialFrost
🥉
250
2,416ms
7 days ago
Look and Say
dokutan
466
74ms
9 days ago
N Queens
dokutan
1,252
71ms
9 days ago
Fibonacci
dokutan
42
70ms
10 days ago
𝑒
Zach1031
1,013
82ms
11 days ago
Fibonacci
Zach1031
53
79ms
11 days ago
Evil Numbers
Voltrifrodec
52
72ms
14 days ago
Prime Numbers
FortuiteMan
43
71ms
15 days ago
Prime Numbers (Long)
FortuiteMan
44
433ms
15 days ago
Tutorial
luuumine
90
87ms
17 days ago
ASCII Table
HumanoidCPU
280
65ms
18 days ago
Trinomial Triangle
MeWhenI
2,073
69ms
19 days ago
Partition Numbers
ovs-code
🥇
68
132ms
20 days ago
Partition Numbers
DialFrost
🥇
68
79ms
20 days ago