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
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
All Languages
><>
ALGOL 68
ArkScript
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
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
ArkScript
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
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
Continued Fractions
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
Gray Code Decoder
Gray Code Encoder
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Taxicab Numbers
Turtle
Tutorial
Hole
Golfer
Bytes
Time
Submitted
Lucky Numbers
CaedenHarper
55
494ms
4 mins ago
Lucky Numbers
CaedenHarper
56
19ms
5 mins ago
Cubes
arcpolaris
540
427ms
13 mins ago
Tic-tac-toe
scpchicken
57
29ms
13 mins ago
Tic-tac-toe
scpchicken
116
29ms
15 mins ago
Tongue-twisters
madeforlosers
536
23ms
19 mins ago
Tongue-twisters
madeforlosers
532
120ms
20 mins ago
Tongue-twisters
madeforlosers
542
2ms
20 mins ago
Tongue-twisters
madeforlosers
537
2,255ms
20 mins ago
Jacobi Symbol
snoozingnewt
🥇
128
309ms
20 mins ago
Tongue-twisters
madeforlosers
543
3ms
20 mins ago
Tongue-twisters
madeforlosers
531
147ms
21 mins ago
Tongue-twisters
madeforlosers
524
4ms
21 mins ago
Tongue-twisters
madeforlosers
598
347ms
21 mins ago
Tongue-twisters
madeforlosers
544
4ms
22 mins ago
Tongue-twisters
madeforlosers
532
34ms
22 mins ago
Tongue-twisters
madeforlosers
548
119ms
22 mins ago
Tongue-twisters
madeforlosers
544
665ms
23 mins ago
Tongue-twisters
madeforlosers
524
48ms
23 mins ago
Kolakoski Constant
pascalecu
195
402ms
23 mins ago
Tongue-twisters
madeforlosers
586
294ms
23 mins ago
Tongue-twisters
madeforlosers
565
1,218ms
23 mins ago
Tongue-twisters
madeforlosers
773
48ms
24 mins ago
Tongue-twisters
madeforlosers
543
4ms
24 mins ago
Tongue-twisters
madeforlosers
530
63ms
24 mins ago
Leap Years
blaztoma
39
36ms
24 mins ago
Tongue-twisters
madeforlosers
530
1,259ms
24 mins ago
Tongue-twisters
madeforlosers
548
102ms
25 mins ago
Tongue-twisters
madeforlosers
531
69ms
25 mins ago
Tongue-twisters
madeforlosers
553
98ms
25 mins ago
Tongue-twisters
madeforlosers
555
420ms
25 mins ago
Tongue-twisters
madeforlosers
529
1,274ms
25 mins ago
Tongue-twisters
madeforlosers
536
6ms
25 mins ago
Tongue-twisters
madeforlosers
544
372ms
26 mins ago
Tongue-twisters
madeforlosers
531
6ms
27 mins ago
Tongue-twisters
madeforlosers
536
121ms
27 mins ago
Tongue-twisters
madeforlosers
573
67ms
27 mins ago
Tongue-twisters
madeforlosers
553
401ms
27 mins ago
Tongue-twisters
madeforlosers
539
2ms
27 mins ago
Tongue-twisters
madeforlosers
544
2ms
27 mins ago
Tongue-twisters
madeforlosers
533
2ms
28 mins ago
Tongue-twisters
madeforlosers
549
2ms
28 mins ago
Tongue-twisters
madeforlosers
544
56ms
28 mins ago
Tongue-twisters
madeforlosers
531
3ms
29 mins ago
Tongue-twisters
madeforlosers
718
6ms
29 mins ago
Fibonacci
madeforlosers
168
3ms
30 mins ago
Fibonacci
madeforlosers
164
1ms
30 mins ago
Fibonacci
madeforlosers
135
46ms
30 mins ago
Fibonacci
madeforlosers
172
388ms
31 mins ago
Fibonacci
madeforlosers
223
8ms
31 mins ago
√2
SuperFola
🥉
916
76ms
31 mins ago
Fibonacci
madeforlosers
141
2ms
31 mins ago
Fibonacci
madeforlosers
172
679ms
31 mins ago
Fibonacci
madeforlosers
176
1,213ms
32 mins ago
Quine
zgialor-lab
127
2ms
32 mins ago
Fibonacci
madeforlosers
159
100ms
32 mins ago
Fibonacci
madeforlosers
155
54ms
33 mins ago
Niven Numbers (Long)
madeforlosers
8,987
131ms
34 mins ago
φ
SuperFola
🥈
910
77ms
34 mins ago
Niven Numbers (Long)
madeforlosers
8,983
663ms
34 mins ago
Niven Numbers (Long)
madeforlosers
7,439
46ms
34 mins ago
Niven Numbers (Long)
madeforlosers
9,025
300ms
35 mins ago
Niven Numbers (Long)
madeforlosers
7,480
1,207ms
35 mins ago
Quine
zgialor-lab
230
2ms
35 mins ago
τ
SuperFola
🥉
917
74ms
35 mins ago
Niven Numbers (Long)
madeforlosers
8,982
4ms
35 mins ago
Niven Numbers (Long)
madeforlosers
7,445
68ms
36 mins ago
Niven Numbers (Long)
madeforlosers
7,445
1,252ms
36 mins ago
Niven Numbers (Long)
madeforlosers
7,463
136ms
36 mins ago
Niven Numbers (Long)
madeforlosers
7,446
68ms
36 mins ago
Niven Numbers (Long)
madeforlosers
8,992
106ms
37 mins ago
Niven Numbers (Long)
madeforlosers
7,470
460ms
37 mins ago
Niven Numbers (Long)
madeforlosers
7,444
1,221ms
37 mins ago
Niven Numbers (Long)
madeforlosers
7,451
8ms
37 mins ago
Niven Numbers (Long)
madeforlosers
8,983
2,705ms
37 mins ago
Niven Numbers (Long)
madeforlosers
7,446
7ms
38 mins ago
Niven Numbers (Long)
madeforlosers
7,451
116ms
38 mins ago
Niven Numbers (Long)
madeforlosers
7,459
53ms
39 mins ago
Niven Numbers (Long)
madeforlosers
9,012
64ms
39 mins ago
Niven Numbers (Long)
madeforlosers
8,992
391ms
39 mins ago