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
Tower of Hanoi
edsrzf
30
38ms
2 days ago
Tower of Hanoi
Schmitt-Very-Cool
115
43ms
2 days ago
Tower of Hanoi
JOrE20
198
35ms
3 days ago
Factorial Factorisation
JOrE20
708
37ms
3 days ago
Gijswijt’s Sequence
JOrE20
170
35ms
3 days ago
λ
JOrE20
946
39ms
3 days ago
Kolakoski Constant
JOrE20
937
39ms
3 days ago
Tongue-twisters
prestosilver
524
33ms
3 days ago
Lucky Numbers
CaedenHarper
31
54ms
4 days ago
ASCII Table
JOrE20
275
35ms
4 days ago
Number Spiral
JOrE20
287
34ms
4 days ago
Cubes
JOrE20
786
39ms
4 days ago
Diamonds
JOrE20
293
35ms
4 days ago
Hilbert Curve
JOrE20
646
42ms
4 days ago
Sierpiński Triangle
JOrE20
207
36ms
4 days ago
Tongue-twisters
JOrE20
337
36ms
4 days ago
Mandelbrot
JOrE20
456
38ms
4 days ago
Odd Polyomino Tiling
JOrE20
19,561
41ms
4 days ago
Taxicab Numbers
ovs-code
36
250ms
4 days ago
Taxicab Numbers
JOrE20
4,137
35ms
4 days ago
Hexagonal Spiral
JOrE20
1,204
34ms
4 days ago
Tower of Hanoi
emgordon154
🥇
29
37ms
4 days ago
Evil Numbers
blaztoma
18
35ms
5 days ago
Tower of Hanoi
blaztoma
🥇
29
37ms
5 days ago
τ
CornerMercury
36
59ms
5 days ago
PalindromemordnilaP
CaedenHarper
30
40ms
5 days ago
Lucky Tickets
dokutan
3,033
52ms
5 days ago
Tower of Hanoi
dokutan
191
37ms
5 days ago
Tower of Hanoi
pardouin
30
36ms
6 days ago
Tower of Hanoi
AlephSquirrel
38
37ms
6 days ago
Tower of Hanoi
KatieLG
3,578
35ms
7 days ago
Fibonacci
solisolu
26
35ms
7 days ago
Tower of Hanoi
CaedenHarper
88
46ms
8 days ago
Ascending Primes
JOrE20
513
35ms
9 days ago
γ
MeWhenI
77
410ms
10 days ago
Taxicab Numbers
HumanoidCPU
4,161
36ms
10 days ago
Niven Numbers (Long)
emgordon154
🥇
24
538ms
10 days ago
Kaprekar Numbers
emgordon154
🥉
224
4,227ms
10 days ago
Taxicab Numbers
Shanethegamer
4,161
34ms
11 days ago
99 Bottles of Beer
blaztoma
202
37ms
12 days ago
Smooth Numbers
GolfingSuccess
25
257ms
14 days ago
Lucky Numbers
blaztoma
36
55ms
14 days ago
Fizz Buzz
JOrE20
37
34ms
14 days ago
Gray Code Encoder
emgordon154
19
83ms
14 days ago
Gray Code Decoder
emgordon154
26
315ms
14 days ago
Musical Chords
emgordon154
96
63ms
15 days ago
Zeckendorf Representation
emgordon154
40
52ms
16 days ago
Evil Numbers (Long)
emgordon154
🥇
16
39ms
16 days ago
Minesweeper
emgordon154
🥇
53
330ms
16 days ago
Rijndael S-box
emgordon154
156
45ms
16 days ago
Odious Numbers (Long)
emgordon154
🥇
15
38ms
16 days ago
Odious Numbers
emgordon154
🥇
14
35ms
16 days ago
Evil Numbers
emgordon154
🥇
14
36ms
16 days ago
Divisors
emgordon154
🥇
24
48ms
16 days ago
Day of Week
emgordon154
105
76ms
16 days ago
Poker
emgordon154
🥉
200
59ms
16 days ago
Continued Fractions
GolfingSuccess
52
40ms
16 days ago
Tower of Hanoi
MeWhenI
31
38ms
16 days ago
Continued Fractions
ovs-code
52
38ms
16 days ago
DFA Simulator
emgordon154
🥉
64
179ms
16 days ago
Foo Fizz Buzz Bar
GolfingSuccess
💎
48
50ms
16 days ago
Tic-tac-toe
emgordon154
40
104ms
16 days ago
Hilbert Curve
emgordon154
💎
215
119ms
17 days ago
Number Spiral
emgordon154
64
35ms
17 days ago
Sierpiński Triangle
emgordon154
🥇
36
34ms
18 days ago
Proximity Grid
emgordon154
🥈
65
2,386ms
18 days ago
Kolakoski Constant
emgordon154
51
50ms
19 days ago
Maze
emgordon154
91
127ms
19 days ago
Repeating Decimals
emgordon154
💎
99
275ms
19 days ago
Forsyth–Edwards Notation
emgordon154
🥈
57
34ms
19 days ago
Game of Life
emgordon154
53
155ms
19 days ago
Hilbert Curve
MeWhenI
🥈
495
46ms
20 days ago
Catalan’s Constant
emgordon154
72
1,825ms
20 days ago
brainfuck
emgordon154
🥈
53
65ms
20 days ago
Apéry’s Constant
emgordon154
48
57ms
20 days ago