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
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
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 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
Scrambled Alphabetization
Semiprime Numbers
Set
Snake
Sphenic Numbers
Star Wars GPT
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
Rockstar 2
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
Rockstar 2
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
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
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 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
Scrambled Alphabetization
Semiprime Numbers
Set
Snake
Sphenic Numbers
Star Wars GPT
Trinomial Triangle
Turtle
Tutorial
Hole
Golfer
Bytes
Submitted
Collatz
sean-niemann
🥇
67
3 days ago
Prime Numbers
gigaprofisi
43
3 days ago
Partition Numbers
KatieLG
756
4 days ago
𝑒
gigaprofisi
1,026
4 days ago
Odious Numbers
sean-niemann
🥉
39
5 days ago
Evil Numbers
sean-niemann
🥉
38
5 days ago
Semiprime Numbers
HumanoidCPU
12,795
7 days ago
Partition Numbers
dokutan
637
7 days ago
Tutorial
gigaprofisi
158
7 days ago
Partition Numbers
snoozingnewt
🥉
157
9 days ago
Partition Numbers
MeWhenI
653
9 days ago
𝑒
Languag3
1,014
11 days ago
Quine
JunkIce
76
11 days ago
Odd Polyomino Tiling
HumanoidCPU
21,437
12 days ago
𝑒
kevinnaviapaiva
184
14 days ago
Sphenic Numbers
DialFrost
58
18 days ago
Semiprime Numbers
DialFrost
84
18 days ago
Emirp Numbers
sean-niemann
🥇
70
18 days ago
Happy Numbers
sean-niemann
🥇
64
18 days ago
Emirp Numbers
DialFrost
🥇
70
18 days ago
Happy Numbers
DialFrost
🥇
64
18 days ago
Partition Numbers
DialFrost
🥈
79
18 days ago
Prime Numbers (Long)
DialFrost
🥇
29
19 days ago
Prime Numbers
DialFrost
🥇
28
19 days ago
12 Days of Christmas
DialFrost
483
19 days ago
Prime Numbers
acotis
81
20 days ago
Partition Numbers
ovs-code
💎
70
20 days ago
Quine
sisyphus-ppcg
💎
22
20 days ago
Quine
DialFrost
🥉
45
21 days ago
𝑒
yhm138
1,009
21 days ago
Quine
yhm138
124
22 days ago
Emirp Numbers
yhm138
665
22 days ago
Tutorial
targrik
83
24 days ago
Roman to Arabic
GolfingSuccess
🥇
35
24 days ago
Arabic to Roman
GolfingSuccess
🥇
40
24 days ago
Inventory Sequence
dokutan
1,554
10 Feb 2025
Quine
sciencejiho
79
10 Feb 2025
Number Spiral
dokutan
306
8 Feb 2025
Quine
m-tkach
46
7 Feb 2025
𝑒
acotis
1,009
6 Feb 2025
ROT13
dokutan
155
4 Feb 2025
Factorial Factorisation
dokutan
746
3 Feb 2025
Arabic to Roman
edsrzf
64
3 Feb 2025
Hilbert Curve
HumanoidCPU
5,124
30 Jan 2025
𝑒
MarcMush
1,013
29 Jan 2025
Tutorial
MarcMush
158
29 Jan 2025
Tic-tac-toe
ovs-code
💎
84
29 Jan 2025
Trinomial Triangle
HumanoidCPU
2,073
28 Jan 2025
Zeckendorf Representation
snoozingnewt
353
27 Jan 2025
Tic-tac-toe
DialFrost
🥈
90
27 Jan 2025
Prime Numbers (Long)
CaedenHarper
43
26 Jan 2025
Prime Numbers
CaedenHarper
42
26 Jan 2025
Fibonacci
desecaw13
49
25 Jan 2025
Catalan Numbers
CaedenHarper
🥉
2,878
24 Jan 2025
λ
JunkIce
1,013
23 Jan 2025
Sierpiński Triangle
rboath
127
23 Jan 2025
Roman to Arabic
rboath
39
23 Jan 2025
Rijndael S-box
CaedenHarper
774
22 Jan 2025
𝑒
CaedenHarper
1,009
22 Jan 2025
√2
CaedenHarper
1,009
22 Jan 2025
φ
CaedenHarper
1,009
22 Jan 2025
τ
CaedenHarper
1,009
22 Jan 2025
π
CaedenHarper
1,009
22 Jan 2025
λ
CaedenHarper
1,009
22 Jan 2025
γ
CaedenHarper
1,009
22 Jan 2025
ln 2
CaedenHarper
1,009
22 Jan 2025
Kolakoski Constant
CaedenHarper
1,009
22 Jan 2025
Factorial Factorisation
CaedenHarper
868
22 Jan 2025
Catalan’s Constant
CaedenHarper
1,009
22 Jan 2025
Niven Numbers (Long)
sean-niemann
54
21 Jan 2025
Prime Numbers (Long)
sean-niemann
🥇
29
20 Jan 2025
Prime Numbers
sean-niemann
🥇
28
20 Jan 2025
99 Bottles of Beer
DialFrost
🥈
232
19 Jan 2025
99 Bottles of Beer
ovs-code
💎
222
19 Jan 2025
𝑒
JunkIce
1,013
19 Jan 2025