Recent Solutions
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
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
Maze
Medal Tally
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
All Languages
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Civet
Clojure
COBOL
Coconut
Common Lisp
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
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
Erlang
Fennel
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
F#
Factor
Forth
Fortran
Gleam
Go
GolfScript
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
Erlang
Fennel
Groovy
Harbour
Hare
Haxe
Hush
Hy
iogii
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
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
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
Maze
Medal Tally
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
Transpose Sentence
United States
Vampire Numbers
Van Eck Sequence
Zeckendorf Representation
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
Connect Four
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Hilbert Curve
Mandelbrot
Minesweeper
NFA Simulator
Odd Polyomino Tiling
p-adic Expansion
QR Encoder
Quadratic Formula
Semiprime Numbers
Snake
Sphenic Numbers
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Scrambled Sort
Natanaelel
🥉
141
105 mins ago
Pangram Grep
heanyang1
142
11 hours ago
Scrambled Sort
Shanethegamer
🥇
126
20 hours ago
Happy Numbers
Natanaelel
74
30 hours ago
Inventory Sequence
Natanaelel
79
30 hours ago
Fizz Buzz
Lv0Sys
112
47 hours ago
Fizz Buzz
CLOStrophobic
82
3 days ago
Pangram Grep
CLOStrophobic
119
4 days ago
Collatz
CLOStrophobic
69
4 days ago
ROT13
CLOStrophobic
144
4 days ago
N Queens
heanyang1
154
4 days ago
Intersection
sean-niemann
137
4 days ago
Divisors
WatMan77
73
5 days ago
Fizz Buzz
WatMan77
110
5 days ago
ROT13
WatMan77
177
5 days ago
Fibonacci
WatMan77
70
6 days ago
Leap Years
WatMan77
70
6 days ago
Reverse Polish Notation
CLOStrophobic
158
6 days ago
λ
heanyang1
1,015
8 days ago
Tutorial
CLOStrophobic
96
9 days ago
Quine
JOrE-Softwares
86
9 days ago
Maze
Shanethegamer
🥈
171
11 days ago
Pascal’s Triangle
Shanethegamer
77
12 days ago
Tutorial
sean-niemann
94
12 days ago
Scrambled Sort
ovs-code
🥇
126
13 days ago
Foo Fizz Buzz Bar
Natanaelel
102
14 days ago
ISBN
Natanaelel
131
14 days ago
Sphenic Numbers
Natanaelel
116
15 days ago
Sphenic Numbers
ovs-code
84
15 days ago
Van Eck Sequence
Natanaelel
83
16 days ago
Semiprime Numbers
Shanethegamer
93
17 days ago
Tutorial
edsrzf
94
19 days ago
Rule 110
Natanaelel
168
20 days ago
Abundant Numbers (Long)
Natanaelel
🥇
61
20 days ago
Abundant Numbers
Natanaelel
🥇
60
20 days ago
Divisors
Natanaelel
🥇
66
20 days ago
Arithmetic Numbers
Natanaelel
82
20 days ago
Repeating Decimals
Natanaelel
485
21 days ago
Odious Numbers
Natanaelel
60
21 days ago
Odious Numbers (Long)
Natanaelel
62
21 days ago
Evil Numbers
Natanaelel
60
21 days ago
Evil Numbers (Long)
Natanaelel
62
21 days ago
Roman to Arabic
Natanaelel
167
22 days ago
Look and Say
sean-niemann
86
23 days ago
Fibonacci
catfish000
🥇
35
23 days ago
Happy Numbers (Long)
Natanaelel
75
24 days ago
Lucky Tickets
Natanaelel
164
24 days ago
Gray Code Decoder
Natanaelel
96
24 days ago
Trinomial Triangle
Shanethegamer
104
24 days ago
Tutorial
Shanethegamer
94
24 days ago
Tutorial
lynn
94
24 days ago
Minesweeper
Natanaelel
187
25 days ago
Minesweeper
Shanethegamer
194
25 days ago
Star Wars GPT
Sakisan
💎
154
26 days ago
Star Wars GPT
Natanaelel
🥉
174
26 days ago
Game of Life
Natanaelel
214
27 days ago
Fibonacci
edsrzf
44
3 May 2025
Arithmetic Numbers
Sakisan
🥈
75
3 May 2025
Gray Code Encoder
Natanaelel
130
2 May 2025
Arabic to Roman
Natanaelel
198
2 May 2025
Smith Numbers
Natanaelel
138
2 May 2025
Arabic to Roman
matthew-drake-3412
1,155
2 May 2025
Leap Years
dokutan
102
1 May 2025
Star Wars GPT
Shanethegamer
179
1 May 2025
Apéry’s Constant
Natanaelel
98
1 May 2025
Lucky Numbers
Sakisan
🥉
69
30 Apr 2025
Lucky Numbers
Natanaelel
75
28 Apr 2025
Lucky Numbers
DialFrost
73
28 Apr 2025
Kolakoski Sequence
DialFrost
74
28 Apr 2025
Star Wars GPT
ovs-code
🥈
166
28 Apr 2025
Lucky Numbers
ovs-code
72
28 Apr 2025
Pernicious Numbers (Long)
Natanaelel
85
27 Apr 2025
Fizz Buzz
Natanaelel
94
27 Apr 2025
Proximity Grid
Natanaelel
258
27 Apr 2025
Trinomial Triangle
KatieLG
2,098
27 Apr 2025