Recent Solutions
Prev Hole
Play Hole
Next Hole
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
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
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
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
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
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
Odious Numbers (Long)
Flekay
🥇
41
10ms
110 mins ago
Odious Numbers (Long)
zgialor-lab
52
18ms
9 hours ago
Odious Numbers (Long)
Steffan153
🥇
48
3ms
9 hours ago
Odious Numbers (Long)
edsrzf
82
98ms
2 days ago
Odious Numbers (Long)
snoozingnewt
49
61ms
4 days ago
Odious Numbers (Long)
GrayJoKing
🥇
66
9ms
4 days ago
Odious Numbers (Long)
emgordon154
🥇
66
7ms
4 days ago
Odious Numbers (Long)
kg583
114
32ms
5 days ago
Odious Numbers (Long)
tomh1012
47
17ms
5 days ago
Odious Numbers (Long)
tsschepens
74
2ms
5 days ago
Odious Numbers (Long)
CaedenHarper
20
40ms
7 days ago
Odious Numbers (Long)
dokutan
99
60ms
10 days ago
Odious Numbers (Long)
Steffan153
🥇
67
26ms
11 days ago
Odious Numbers (Long)
Steffan153
38
260ms
11 days ago
Odious Numbers (Long)
Steffan153
🥇
48
2,193ms
11 days ago
Odious Numbers (Long)
Steffan153
🥇
120
1,684ms
11 days ago
Odious Numbers (Long)
Lv0Sys
41
296ms
11 days ago
Odious Numbers (Long)
Lv0Sys
36
36ms
11 days ago
Odious Numbers (Long)
Lv0Sys
49
12ms
11 days ago
Odious Numbers (Long)
FranklinJiaChen
173
16ms
13 days ago
Odious Numbers (Long)
piano-miles
66
11ms
13 days ago
Odious Numbers (Long)
piano-miles
59
11ms
13 days ago
Odious Numbers (Long)
piano-miles
89
2ms
13 days ago
Odious Numbers (Long)
JOrE20
8
197ms
13 days ago
Odious Numbers (Long)
frankgraziano
75
9ms
14 days ago
Odious Numbers (Long)
dokutan
44
9ms
14 days ago
Odious Numbers (Long)
dokutan
61
2ms
14 days ago
Odious Numbers (Long)
dokutan
51
4ms
14 days ago
Odious Numbers (Long)
dokutan
🥉
73
13ms
14 days ago
Odious Numbers (Long)
dokutan
51
1ms
14 days ago
Odious Numbers (Long)
kevinnaviapaiva
126
39ms
14 days ago
Odious Numbers (Long)
Steffan153
🥈
72
26ms
15 days ago
Odious Numbers (Long)
Steffan153
💎
78
126ms
15 days ago
Odious Numbers (Long)
FranklinJiaChen
81
2ms
16 days ago
Odious Numbers (Long)
CaedenHarper
2,954
20ms
16 days ago
Odious Numbers (Long)
FranklinJiaChen
52
18ms
16 days ago
Odious Numbers (Long)
dokutan
52
164ms
16 days ago
Odious Numbers (Long)
dokutan
45
134ms
16 days ago
Odious Numbers (Long)
KatieLG
1,953
3ms
16 days ago
Odious Numbers (Long)
KatieLG
2,999
9ms
16 days ago
Odious Numbers (Long)
rotemkm
47
17ms
16 days ago
Odious Numbers (Long)
netfri25
47
17ms
16 days ago
Odious Numbers (Long)
dokutan
49
59ms
17 days ago
Odious Numbers (Long)
GolfingSuccess
102
35ms
17 days ago
Odious Numbers (Long)
emgordon154
🥇
14
2ms
17 days ago
Odious Numbers (Long)
janAkali
56
149ms
19 days ago
Odious Numbers (Long)
FoxInTheClouds
🥇
41
11ms
20 days ago
Odious Numbers (Long)
emgordon154
🥉
40
48ms
21 days ago
Odious Numbers (Long)
JOrE20
49
10ms
21 days ago
Odious Numbers (Long)
dokutan
50
2ms
22 days ago
Odious Numbers (Long)
dokutan
51
106ms
22 days ago
Odious Numbers (Long)
dokutan
44
3ms
22 days ago
Odious Numbers (Long)
dokutan
74
448ms
22 days ago
Odious Numbers (Long)
dokutan
50
4ms
22 days ago
Odious Numbers (Long)
dokutan
54
9ms
22 days ago
Odious Numbers (Long)
dokutan
🥇
49
108ms
22 days ago
Odious Numbers (Long)
dokutan
47
2ms
22 days ago
Odious Numbers (Long)
dokutan
62
413ms
22 days ago
Odious Numbers (Long)
dokutan
68
355ms
22 days ago
Odious Numbers (Long)
dokutan
78
58ms
22 days ago
Odious Numbers (Long)
dokutan
59
2ms
22 days ago
Odious Numbers (Long)
dokutan
🥇
41
10ms
22 days ago
Odious Numbers (Long)
dokutan
40
384ms
22 days ago
Odious Numbers (Long)
Steffan153
🥇
40
2ms
24 days ago
Odious Numbers (Long)
Steffan153
🥇
39
63ms
24 days ago
Odious Numbers (Long)
Steffan153
🥇
38
707ms
25 days ago
Odious Numbers (Long)
Steffan153
58
39ms
26 days ago
Odious Numbers (Long)
Steffan153
🥉
40
5ms
26 days ago
Odious Numbers (Long)
Steffan153
🥇
62
366ms
27 days ago
Odious Numbers (Long)
CornerMercury
114
43ms
27 days ago
Odious Numbers (Long)
frosster
47
2ms
9 Feb 2026
Odious Numbers (Long)
Shanethegamer
1,952
3ms
7 Feb 2026
Odious Numbers (Long)
Shanethegamer
1,957
1ms
7 Feb 2026
Odious Numbers (Long)
emgordon154
73
57ms
7 Feb 2026
Odious Numbers (Long)
Blendi-Goose
76
3ms
6 Feb 2026
Odious Numbers (Long)
GolfingSuccess
46
1ms
6 Feb 2026
Odious Numbers (Long)
HumanoidCPU
1,957
1ms
6 Feb 2026
Odious Numbers (Long)
Yewzir
46
1ms
5 Feb 2026
Odious Numbers (Long)
osNiko
49
47ms
4 Feb 2026
Odious Numbers (Long)
Thinkr1
39
36ms
3 Feb 2026