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
brainfuck
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
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
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
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
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku v2
Ten-pin Bowling
Time Distance
Tongue-twisters
United States
Vampire Numbers
Van Eck Sequence
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
All Languages
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Clojure
COBOL
Coconut
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
Julia
K
Lisp
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
Assembly
AWK
Bash
BASIC
Berry
brainfuck
C
C#
C++
Clojure
COBOL
Coconut
Crystal
D
Dart
Elixir
F#
Factor
Forth
Fortran
Go
GolfScript
Haskell
Hexagony
J
Janet
Java
JavaScript
Julia
K
Lisp
Lua
Nim
OCaml
Pascal
Perl
PHP
PowerShell
Prolog
Python
R
Raku
Rockstar
Ruby
Rust
sed
SQL
Swift
Tcl
TeX
V
VimL
Wren
Zig
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
brainfuck
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
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
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Poker
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
Rule 110
Seven Segment
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Star Wars Opening Crawl
Sudoku
Sudoku v2
Ten-pin Bowling
Time Distance
Tongue-twisters
United States
Vampire Numbers
Van Eck Sequence
Zodiac Signs
γ
λ
π
τ
φ
√2
𝑒
Hole
Golfer
Chars
Submitted
Reversi
SirBogman
81
18 hours ago
Reversi
sisyphus-ppcg
🥉
74
18 hours ago
Reversi
Steffan153
💎
72
20 hours ago
Reversi
nwellnhof
🥈
73
20 hours ago
Reversi
MeWhenI
79
22 hours ago
Medal Tally
nwellnhof
🥈
89
11 days ago
Evil Numbers (Long)
HumanoidCPU
1,954
13 days ago
Odious Numbers (Long)
HumanoidCPU
1,949
13 days ago
Prime Numbers (Long)
HumanoidCPU
5,952
13 days ago
Odious Numbers
HumanoidCPU
77
14 days ago
Kolakoski Sequence
HumanoidCPU
2,004
14 days ago
Leap Years
HumanoidCPU
734
14 days ago
ASCII Table
HumanoidCPU
279
14 days ago
Prime Numbers
HumanoidCPU
75
14 days ago
Fibonacci
HumanoidCPU
138
14 days ago
Foo Fizz Buzz Bar
byronknoll
68
14 days ago
Fizz Buzz
byronknoll
44
14 days ago
Abundant Numbers (Long)
HumanoidCPU
968
15 days ago
Abundant Numbers
HumanoidCPU
167
15 days ago
brainfuck
DialFrost
144
18 days ago
brainfuck
ovs-code
123
18 days ago
Evil Numbers
HumanoidCPU
74
18 days ago
Look and Say
HumanoidCPU
1,283
18 days ago
Christmas Trees
HumanoidCPU
549
19 days ago
99 Bottles of Beer
HumanoidCPU
11,889
19 days ago
Pascal’s Triangle
HumanoidCPU
773
19 days ago
Ascending Primes
HumanoidCPU
516
19 days ago
Odious Numbers (Long)
HPWiz
🥉
29
20 days ago
Odious Numbers
HPWiz
🥉
28
20 days ago
Foo Fizz Buzz Bar
HumanoidCPU
5,723
21 days ago
Fibonacci
error256
28
22 days ago
Pernicious Numbers (Long)
HumanoidCPU
20,666
22 days ago
Pernicious Numbers
HumanoidCPU
104
22 days ago
Arithmetic Numbers
HumanoidCPU
37,646
22 days ago
Niven Numbers (Long)
HumanoidCPU
7,442
23 days ago
24 Game
HumanoidCPU
12,436
23 days ago
γ
HumanoidCPU
1,007
23 days ago
Happy Numbers (Long)
HumanoidCPU
556
24 days ago
Lucky Numbers
HumanoidCPU
4,824
24 days ago
Vampire Numbers
HumanoidCPU
1,075
24 days ago
Farey Sequence
HumanoidCPU
4,358
24 days ago
Niven Numbers
HumanoidCPU
95
24 days ago
Van Eck Sequence
HumanoidCPU
2,559
24 days ago
Recamán
HumanoidCPU
901
24 days ago
Sierpiński Triangle
HumanoidCPU
396
24 days ago
Rule 110
HumanoidCPU
10,104
25 days ago
Catalan Numbers
Yewzir
77
25 days ago
Pascal’s Triangle
helbling
49
26 days ago
Emirp Numbers (Long)
HumanoidCPU
1,160
26 days ago
Emirp Numbers
HumanoidCPU
140
27 days ago
Niven Numbers (Long)
Yewzir
57
4 May 2024
12 Days of Christmas
HumanoidCPU
2,373
4 May 2024
Smith Numbers
HumanoidCPU
1,828
4 May 2024
Happy Numbers
HumanoidCPU
111
3 May 2024
Collatz
HumanoidCPU
3,230
3 May 2024
Divisors
HumanoidCPU
1,170
3 May 2024
Gijswijt’s Sequence
HumanoidCPU
2,004
3 May 2024
N Queens
MeWhenI
🥉
1,250
2 May 2024
N Queens
saito-ta
💎
103
2 May 2024
N Queens
rucin93
🥈
117
2 May 2024