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Nim
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Recent Solutions
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12 Days of Christmas
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brainfuck
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Catalan’s Constant
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Day of Week
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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
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ISBN
Jacobi Symbol
Kaprekar Numbers
Kolakoski Constant
Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
ln 2
Look and Say
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Lucky Tickets
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Maze
Medal Tally
Minesweeper
Morse Decoder
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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)
Taxicab Numbers
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
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
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Semiprime Numbers
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Snake
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Turtle
Tutorial
Ulam Sequence
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><>
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
iogii
J
Janet
Java
JavaScript
jq
Julia
K
Kotlin
Lua
Nim
OCaml
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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
Knight
Lily
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
ZuzuScript
Hole
All
12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Connect Four
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)
Taxicab Numbers
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
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
NFA Simulator
Nim
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
Smooth Numbers
Snake
Sphenic Numbers
Turtle
Tutorial
Ulam Sequence
Hole
Golfer
Bytes
Time
Submitted
Hexagonal Spiral
HumanoidCPU
1,397
4ms
18 May 2026
ASCII Table
HumanoidCPU
319
5ms
18 May 2026
Diamonds
HumanoidCPU
1,219
5ms
18 May 2026
Gijswijt’s Sequence
HumanoidCPU
3,027
5ms
18 May 2026
Foo Fizz Buzz Bar
HumanoidCPU
6,746
5ms
18 May 2026
N Queens
HumanoidCPU
1,421
5ms
18 May 2026
Prime Numbers (Long)
HumanoidCPU
7,204
5ms
18 May 2026
Lucky Numbers
HumanoidCPU
5,847
5ms
18 May 2026
24 Game
HumanoidCPU
13,821
5ms
18 May 2026
Evil Numbers
HumanoidCPU
122
5ms
17 May 2026
Odious Numbers (Long)
HumanoidCPU
2,472
4ms
17 May 2026
Christmas Trees
HumanoidCPU
627
4ms
13 May 2026
Ulam Sequence
HumanoidCPU
1,370
5ms
12 May 2026
Ulam Sequence
Shanethegamer
1,370
4ms
11 May 2026
Tutorial
snoozingnewt
115
92ms
1 May 2026
Dragon Curve
HumanoidCPU
10,555
5ms
24 Apr 2026
Dragon Curve
Shanethegamer
10,555
5ms
23 Apr 2026
Tower of Hanoi
scpchicken
106
9ms
11 Apr 2026
Fizz Buzz
madex
274
60ms
14 Mar 2026
Alphabetic Numbers
HumanoidCPU
4,923
4ms
6 Mar 2026
Tutorial
Matter1024
115
78ms
9 Feb 2026
Tutorial
FortuiteMan
236
87ms
3 Feb 2026
π
Andrey2001
1,031
4ms
27 Jan 2026
Tutorial
Mefred
236
70ms
23 Jan 2026
𝑒
JOrE20
1,042
4ms
5 Jan 2026
Tutorial
HumanoidCPU
136
81ms
1 Jan 2026
Smith Numbers
HumanoidCPU
2,227
4ms
21 Dec 2025
Tutorial
LostSyntax21
136
83ms
21 Dec 2025
Tutorial
GolfingSuccess
110
79ms
14 Dec 2025
Evil Numbers (Long)
HumanoidCPU
2,478
4ms
6 Dec 2025
Collatz
HumanoidCPU
4,253
4ms
6 Dec 2025
Arithmetic Numbers
HumanoidCPU
45,357
6ms
4 Dec 2025
Tower of Hanoi
KatieLG
4,134
62ms
30 Nov 2025
𝑒
BREMAUCY
1,031
4ms
27 Nov 2025
Taxicab Numbers
HumanoidCPU
4,672
5ms
27 Nov 2025
Taxicab Numbers
Shanethegamer
4,672
5ms
26 Nov 2025
Inventory Sequence
HumanoidCPU
3,650
5ms
23 Nov 2025
Kolakoski Sequence
HumanoidCPU
2,028
4ms
12 Nov 2025
Pernicious Numbers
HumanoidCPU
162
4ms
10 Nov 2025
Pernicious Numbers (Long)
HumanoidCPU
24,941
5ms
10 Nov 2025
Tower of Hanoi
HumanoidCPU
4,115
4ms
7 Nov 2025
Divisors
HumanoidCPU
1,293
4ms
3 Nov 2025
Tower of Hanoi
Shanethegamer
4,115
4ms
30 Oct 2025
Tutorial
Babafaba
236
65ms
15 Oct 2025
Tutorial
Shanethegamer
132
90ms
11 Oct 2025
Odious Numbers
Babafaba
105
73ms
11 Oct 2025
Niven Numbers
HumanoidCPU
151
4ms
7 Oct 2025
Tutorial
retrohun
242
90ms
19 Sep 2025
Fizz Buzz
snoozingnewt
540
4ms
15 Sep 2025
Tutorial
targrik
132
92ms
11 Sep 2025
Fizz Buzz
CaedenHarper
265
63ms
11 Sep 2025
Odd Polyomino Tiling
HumanoidCPU
21,665
6ms
25 Aug 2025
Tutorial
Vexxter9
242
76ms
21 Aug 2025
Highly Composite Numbers
HumanoidCPU
480
4ms
18 Aug 2025
Sphenic Numbers
HumanoidCPU
10,687
4ms
18 Aug 2025
Semiprime Numbers
HumanoidCPU
15,441
4ms
18 Aug 2025
Trinomial Triangle
HumanoidCPU
2,114
3ms
18 Aug 2025
Hilbert Curve
HumanoidCPU
5,177
4ms
18 Aug 2025
Abundant Numbers (Long)
HumanoidCPU
1,237
4ms
18 Aug 2025
Polyominoes
HumanoidCPU
4,857
4ms
18 Aug 2025
Recamán
HumanoidCPU
1,174
3ms
18 Aug 2025
Rule 110
HumanoidCPU
15,979
4ms
18 Aug 2025
Number Spiral
HumanoidCPU
337
4ms
18 Aug 2025
Rijndael S-box
HumanoidCPU
811
3ms
18 Aug 2025
Pascal’s Triangle
HumanoidCPU
816
4ms
18 Aug 2025
Kaprekar Numbers
HumanoidCPU
535
4ms
18 Aug 2025
12 Days of Christmas
HumanoidCPU
2,509
4ms
18 Aug 2025
Happy Numbers
HumanoidCPU
166
3ms
18 Aug 2025
Happy Numbers (Long)
HumanoidCPU
722
3ms
18 Aug 2025
Emirp Numbers
HumanoidCPU
199
4ms
18 Aug 2025
Emirp Numbers (Long)
HumanoidCPU
1,423
4ms
18 Aug 2025
Catalan Numbers
HumanoidCPU
2,999
3ms
18 Aug 2025
Cubes
HumanoidCPU
4,239
4ms
18 Aug 2025
Tongue-twisters
HumanoidCPU
564
3ms
18 Aug 2025
Van Eck Sequence
HumanoidCPU
3,582
4ms
17 Aug 2025
Vampire Numbers
HumanoidCPU
1,253
3ms
17 Aug 2025
Abundant Numbers
HumanoidCPU
236
4ms
16 Aug 2025
Partition Numbers
HumanoidCPU
774
3ms
16 Aug 2025
Look and Say
HumanoidCPU
1,326
3ms
15 Aug 2025
Leyland Numbers
HumanoidCPU
1,020
4ms
15 Aug 2025
Farey Sequence
HumanoidCPU
5,156
4ms
15 Aug 2025
Niven Numbers (Long)
HumanoidCPU
9,003
4ms
14 Aug 2025
Odious Numbers
HumanoidCPU
126
3ms
11 Aug 2025
Leap Years
HumanoidCPU
903
4ms
6 Aug 2025
Prime Numbers
HumanoidCPU
123
3ms
2 Aug 2025
Sierpiński Triangle
HumanoidCPU
597
3ms
2 Aug 2025
π
Ralac07
1,037
4ms
28 Jul 2025
Tutorial
Bpc-CPU
242
69ms
12 Jul 2025
Fibonacci
HumanoidCPU
192
4ms
1 Jul 2025
Mandelbrot
HumanoidCPU
10,072
5ms
30 Jun 2025
Fizz Buzz
HumanoidCPU
540
4ms
20 Jun 2025
Ascending Primes
HumanoidCPU
639
4ms
13 Jun 2025
Catalan’s Constant
HumanoidCPU
1,031
3ms
5 Jun 2025
Kolakoski Constant
HumanoidCPU
1,031
4ms
5 Jun 2025
λ
HumanoidCPU
1,031
4ms
5 Jun 2025
τ
HumanoidCPU
1,031
4ms
5 Jun 2025
π
HumanoidCPU
1,031
3ms
5 Jun 2025
φ
HumanoidCPU
1,031
4ms
5 Jun 2025
γ
HumanoidCPU
1,031
4ms
5 Jun 2025
ln 2
HumanoidCPU
1,031
4ms
5 Jun 2025