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
Calendar
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
Multitap Input
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
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
Numbrix
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
><>
ALGOL 68
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
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
ALGOL 68
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
APL
ArkScript
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Lily
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
Calendar
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
Multitap Input
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
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
Numbrix
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
Minesweeper
albanian-laundromat
🦄
393
19ms
16 hours ago
Continued Fractions
albanian-laundromat
417
12ms
29 hours ago
Ten-pin Bowling
tomh1012
812
12ms
2 days ago
Prime Numbers
tomh1012
401
13ms
2 days ago
Ten-pin Bowling
aksyristos
5,270
13ms
2 days ago
Arithmetic Numbers
albanian-laundromat
313
1,259ms
2 days ago
Multitap Input
albanian-laundromat
🥈
355
20ms
2 days ago
Ten-pin Bowling
CornerMercury
719
12ms
2 days ago
Ten-pin Bowling
bitsandbeyond
1,864
12ms
2 days ago
Fizz Buzz
madex
669
12ms
3 days ago
Van Eck Sequence
JOrE20
2,595
12ms
7 days ago
Gijswijt’s Sequence
JOrE20
2,040
12ms
8 days ago
Collatz
JOrE20
3,266
12ms
8 days ago
Abundant Numbers
JOrE20
203
11ms
8 days ago
Divisors
JOrE20
1,206
12ms
8 days ago
Catalan Numbers
JOrE20
2,912
12ms
9 days ago
Ascending Primes
JOrE20
552
11ms
9 days ago
Number Spiral
JOrE20
🥈
342
10ms
9 days ago
ROT13
GolfingSuccess
276
51ms
10 days ago
Tutorial
janAkali
386
21ms
11 days ago
Quine
JOrE20
3,504
12ms
12 days ago
Look and Say
dokutan
724
11ms
12 days ago
Christmas Trees
frankgraziano
🥈
243
12ms
12 days ago
12 Days of Christmas
frankgraziano
🥈
691
13ms
16 days ago
Tutorial
FortuiteMan
386
16ms
22 days ago
Look and Say
albanian-laundromat
374
14ms
24 days ago
ISBN
frankgraziano
🥈
286
651ms
25 days ago
Leap Years
frankgraziano
🥇
131
12ms
25 days ago
Trinomial Triangle
primo-ppcg
💎
246
12ms
27 days ago
π
Andrey2001
1,047
11ms
27 Jan 2026
Odious Numbers (Long)
albanian-laundromat
194
12ms
25 Jan 2026
Evil Numbers (Long)
albanian-laundromat
188
12ms
25 Jan 2026
Catalan Numbers
albanian-laundromat
🥈
555
23ms
25 Jan 2026
Tower of Hanoi
primo-ppcg
💎
208
14ms
25 Jan 2026
Multitap Input
frankgraziano
💎
322
653ms
23 Jan 2026
Fibonacci
Andrey2001
162
11ms
23 Jan 2026
Abundant Numbers (Long)
albanian-laundromat
241
71ms
20 Jan 2026
Tutorial
Mefred
386
17ms
15 Jan 2026
Trinomial Triangle
KatieLG-Transpiler
2,221
12ms
9 Jan 2026
Tower of Hanoi
KatieLG-Transpiler
3,815
12ms
9 Jan 2026
Taxicab Numbers
KatieLG-Transpiler
4,454
12ms
9 Jan 2026
Sphenic Numbers
KatieLG-Transpiler
9,462
15ms
9 Jan 2026
Semiprime Numbers
KatieLG-Transpiler
13,671
17ms
9 Jan 2026
Polygon Triangulations
KatieLG-Transpiler
4,578
12ms
9 Jan 2026
Partition Numbers
KatieLG-Transpiler
717
10ms
9 Jan 2026
Mandelbrot
KatieLG-Transpiler
10,578
15ms
9 Jan 2026
Kaprekar Numbers
KatieLG-Transpiler
482
10ms
9 Jan 2026
Hilbert Curve
KatieLG-Transpiler
5,440
12ms
9 Jan 2026
Highly Composite Numbers
KatieLG-Transpiler
434
10ms
9 Jan 2026
Hexagonal Spiral
KatieLG-Transpiler
1,483
10ms
9 Jan 2026
Smooth Numbers
GolfingSuccess
325
53ms
7 Jan 2026
Quine
CornerMercury
254
10ms
6 Jan 2026
Polyominoes
dokutan
💎
1,324
12ms
5 Jan 2026
ASCII Table
blaztoma
428
11ms
5 Jan 2026
λ
JOrE20
1,048
11ms
4 Jan 2026
√2
JOrE20
1,048
11ms
4 Jan 2026
π
JOrE20
1,048
11ms
4 Jan 2026
τ
JOrE20
1,048
11ms
4 Jan 2026
φ
JOrE20
1,048
10ms
4 Jan 2026
Catalan’s Constant
JOrE20
1,048
11ms
2 Jan 2026
Rijndael S-box
JOrE20
🥉
808
10ms
2 Jan 2026
Smith Numbers
JOrE20
🥉
1,864
12ms
2 Jan 2026
Leyland Numbers
JOrE20
🥉
926
11ms
2 Jan 2026
Kaprekar Numbers
JOrE20
🥈
480
11ms
2 Jan 2026
24 Game
JOrE20
12,481
18ms
2 Jan 2026
Tutorial
HumanoidCPU
186
16ms
1 Jan 2026
Game of Life
blaztoma
🥉
523
17ms
30 Dec 2025
Abundant Numbers (Long)
BREMAUCY
211
969ms
30 Dec 2025
γ
JOrE20
1,048
11ms
29 Dec 2025
Tongue-twisters
JOrE20
568
11ms
27 Dec 2025
Prime Numbers (Long)
albanian-laundromat
238
1,442ms
26 Dec 2025
γ
frankgraziano
1,073
11ms
26 Dec 2025
Evil Numbers
JOrE20
110
10ms
26 Dec 2025
Intersection
frankgraziano
🥈
305
12ms
25 Dec 2025
Hilbert Curve
JOrE20
🥉
5,158
13ms
25 Dec 2025
Factorial Factorisation
albanian-laundromat
🥈
427
69ms
24 Dec 2025
γ
albanian-laundromat
💎
733
12ms
24 Dec 2025
Van Eck Sequence
GitMensch
280
20ms
20 Dec 2025
Tongue-twisters
prestosilver
584
10ms
17 Dec 2025
Tower of Hanoi
gigaprofisi
3,728
14ms
17 Dec 2025