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
Flags
bitsandbeyond
675
360ms
2 hours ago
φ
GolfingSuccess
🥇
37
187ms
20 hours ago
ln 2
GolfingSuccess
🥇
40
2,197ms
20 hours ago
√2
GolfingSuccess
🥇
36
2,076ms
20 hours ago
𝑒
GolfingSuccess
🥇
31
202ms
20 hours ago
γ
GolfingSuccess
🥇
42
227ms
20 hours ago
Catalan’s Constant
GolfingSuccess
🥇
46
231ms
20 hours ago
τ
GolfingSuccess
🥇
40
1,861ms
20 hours ago
π
GolfingSuccess
🥇
31
186ms
20 hours ago
Rectangle Fill
denkyuu1
264
763ms
22 hours ago
Reverse Polish Notation
denkyuu1
162
369ms
22 hours ago
Tongue-twisters
denkyuu1
381
165ms
25 hours ago
ASCII Table
denkyuu1
112
448ms
26 hours ago
Christmas Trees
denkyuu1
59
331ms
26 hours ago
Alphabetic Numbers
Shanethegamer
3,903
152ms
44 hours ago
Kolakoski Sequence
antimon2
60
517ms
2 days ago
Diamonds
denkyuu1
110
428ms
2 days ago
Leap Years
JayXon
💎
32
265ms
2 days ago
Pernicious Numbers
Daniel-Ellison
47
257ms
3 days ago
Pernicious Numbers (Long)
Daniel-Ellison
58
259ms
3 days ago
Musical Chords
Steffan153
🥉
90
326ms
3 days ago
Trinomial Triangle
denkyuu1
103
300ms
4 days ago
Intersection
jusaka
158
258ms
4 days ago
Time Distance
jusaka
434
188ms
4 days ago
Repeating Decimals
jusaka
412
259ms
5 days ago
Scrambled Sort
jusaka
245
376ms
5 days ago
Continued Fractions
jusaka
247
296ms
5 days ago
Topological Sort
jusaka
389
285ms
5 days ago
Multitap Input
jusaka
341
281ms
5 days ago
United States
jusaka
920
182ms
5 days ago
Spelling Numbers
jusaka
502
328ms
5 days ago
Lucky Numbers
denkyuu1
114
590ms
5 days ago
Emojify
jusaka
404
177ms
5 days ago
Calendar
jusaka
🥈
613
214ms
5 days ago
Billiards
jusaka
309
251ms
5 days ago
Reversi
jusaka
510
330ms
5 days ago
CSS Colors
jusaka
3,594
178ms
5 days ago
Forsyth–Edwards Notation
jusaka
351
305ms
5 days ago
brainfuck
jusaka
492
299ms
5 days ago
Medal Tally
jusaka
381
211ms
5 days ago
Musical Chords
jusaka
561
314ms
5 days ago
Maze
jusaka
1,067
473ms
5 days ago
Set
jusaka
295
212ms
5 days ago
DFA Simulator
jusaka
870
423ms
5 days ago
SI Units
jusaka
1,257
555ms
5 days ago
Poker
jusaka
803
815ms
5 days ago
Sudoku
jusaka
1,384
275ms
5 days ago
Star Wars GPT
jusaka
860
259ms
5 days ago
Sudoku (Fill-in)
jusaka
1,316
352ms
5 days ago
Star Wars Opening Crawl
jusaka
917
336ms
5 days ago
QR Decoder
jusaka
329
210ms
5 days ago
Mahjong
jusaka
1,087
296ms
5 days ago
Quine
jusaka
59
182ms
5 days ago
Tongue-twisters
jusaka
544
191ms
5 days ago
Polyominoes
jusaka
4,837
161ms
5 days ago
Odd Polyomino Tiling
jusaka
21,645
178ms
5 days ago
Mandelbrot
jusaka
10,052
164ms
5 days ago
Hexagonal Spiral
jusaka
1,377
175ms
5 days ago
24 Game
jusaka
13,801
170ms
5 days ago
Ten-pin Bowling
jusaka
1,202
249ms
5 days ago
Morse Decoder
jusaka
638
597ms
5 days ago
Morse Encoder
jusaka
639
648ms
5 days ago
Zodiac Signs
jusaka
1,081
250ms
5 days ago
Seven Segment
jusaka
389
201ms
5 days ago
Proximity Grid
jusaka
1,078
355ms
5 days ago
Game of Life
jusaka
536
405ms
5 days ago
Tic-tac-toe
jusaka
564
319ms
5 days ago
Rock-paper-scissors-Spock-lizard
jusaka
996
400ms
5 days ago
Quadratic Formula
jusaka
1,913
383ms
5 days ago
Zeckendorf Representation
jusaka
307
321ms
5 days ago
Lucky Tickets
jusaka
510
318ms
5 days ago
Pernicious Numbers (Long)
jusaka
265
235ms
5 days ago
Smooth Numbers
jusaka
371
359ms
5 days ago
Arithmetic Numbers
jusaka
267
254ms
5 days ago
Sphenic Numbers
jusaka
492
213ms
5 days ago
Semiprime Numbers
jusaka
276
249ms
5 days ago
Rule 110
jusaka
321
245ms
5 days ago
ASCII Table
jusaka
295
222ms
5 days ago
Hexdump
jusaka
847
214ms
5 days ago
Fractions
jusaka
225
193ms
5 days ago