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
Card Number Validation
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
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
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
Apéry’s Constant
Binary Lambda Calculus
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Multitap Input
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
><>
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
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
Luau
Odin
Picat
Qore
Racket
Rebol
Rexx
Scala
Squirrel
Stax
Uiua
Umka
Vala
Vyxal
Bytes
Chars
Scoring
Bytes
Chars
Language
All
><>
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
ALGOL 68
APL
Arturo
Befunge
BQN
CJam
CoffeeScript
Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
iogii
Knight
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
Card Number Validation
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
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
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
Apéry’s Constant
Binary Lambda Calculus
Calendar
Connect Four
Continued Fractions
Crossword
CSS Colors (Inverse)
CSS Grid
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Gray Code Decoder
Gray Code Encoder
Hexagonal Spiral
Highly Composite Numbers
Multitap Input
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
Chars
Time
Submitted
Emirp Numbers (Long)
Lv0Sys
101
197ms
3 days ago
Emirp Numbers (Long)
NoneTheFewer
169
153ms
6 days ago
Emirp Numbers (Long)
Andrey2001
113
376ms
15 days ago
Emirp Numbers (Long)
TheZwierzLF
114
364ms
19 days ago
Emirp Numbers (Long)
GrayJoKing
100
126ms
20 days ago
Emirp Numbers (Long)
Seek64
81
128ms
23 days ago
Emirp Numbers (Long)
FortuiteMan
98
220ms
23 days ago
Emirp Numbers (Long)
Babafaba
77
126ms
23 days ago
Emirp Numbers (Long)
CommandLeo
97
222ms
25 days ago
Emirp Numbers (Long)
cthierfelder
156
507ms
26 days ago
Emirp Numbers (Long)
madeforlosers
129
3,801ms
11 Nov 2025
Emirp Numbers (Long)
Emutis
86
119ms
11 Nov 2025
Emirp Numbers (Long)
blaztoma
86
118ms
11 Nov 2025
Emirp Numbers (Long)
solisolu
109
4,145ms
6 Nov 2025
Emirp Numbers (Long)
qpwoeirut
101
120ms
31 Oct 2025
Emirp Numbers (Long)
Deedogg
275
10ms
30 Oct 2025
Emirp Numbers (Long)
Code-Coder-coder
129
357ms
27 Oct 2025
Emirp Numbers (Long)
Mabeloid
114
181ms
20 Oct 2025
Emirp Numbers (Long)
iczelia
114
190ms
19 Oct 2025
Emirp Numbers (Long)
CheeseCake628
100
126ms
18 Oct 2025
Emirp Numbers (Long)
luuumine
120
158ms
13 Oct 2025
Emirp Numbers (Long)
TJK-S
144
1,170ms
10 Oct 2025
Emirp Numbers (Long)
CornerMercury
65
79ms
9 Oct 2025
Emirp Numbers (Long)
albanian-laundromat
71
112ms
7 Oct 2025
Emirp Numbers (Long)
jacekwladzinski
112
333ms
2 Oct 2025
Emirp Numbers (Long)
BrunoVisnadi
86
259ms
30 Sep 2025
Emirp Numbers (Long)
SectorCorruptor
111
201ms
21 Sep 2025
Emirp Numbers (Long)
arjunarya1
141
199ms
12 Sep 2025
Emirp Numbers (Long)
InigoK
97
215ms
3 Sep 2025
Emirp Numbers (Long)
adoxography
121
210ms
1 Sep 2025
Emirp Numbers (Long)
wobblybits
158
13ms
23 Aug 2025
Emirp Numbers (Long)
osNiko
113
198ms
21 Aug 2025
Emirp Numbers (Long)
katss2
124
219ms
20 Aug 2025
Emirp Numbers (Long)
Upload-and-View
217
15ms
16 Aug 2025
Emirp Numbers (Long)
emgordon154
73
345ms
15 Aug 2025
Emirp Numbers (Long)
H3XDaemon
112
368ms
15 Aug 2025
Emirp Numbers (Long)
wuduculfre
111
345ms
3 Aug 2025
Emirp Numbers (Long)
Zhenyu-Bo
868
14ms
1 Aug 2025
Emirp Numbers (Long)
RaBa21
84
194ms
18 Jul 2025
Emirp Numbers (Long)
moustave
111
205ms
15 Jul 2025
Emirp Numbers (Long)
clayboll99
123
3,959ms
14 Jul 2025
Emirp Numbers (Long)
SanderRuud
122
129ms
13 Jul 2025
Emirp Numbers (Long)
AstroOrbis
152
14ms
13 Jul 2025
Emirp Numbers (Long)
codewrite
208
12ms
11 Jul 2025
Emirp Numbers (Long)
Flekay
112
191ms
11 Jul 2025
Emirp Numbers (Long)
andrewjc2000
102
200ms
10 Jul 2025
Emirp Numbers (Long)
dirckvdende
116
1,925ms
5 Jul 2025
Emirp Numbers (Long)
KasperKivimaeki
112
667ms
5 Jul 2025
Emirp Numbers (Long)
4atj
76
68ms
30 Jun 2025
Emirp Numbers (Long)
robin-scragg
98
4,330ms
25 Jun 2025
Emirp Numbers (Long)
Mukundan314
65
1,530ms
20 Jun 2025
Emirp Numbers (Long)
Alban-Boissard
119
3,199ms
14 Jun 2025
Emirp Numbers (Long)
ffelixm
269
13ms
12 Jun 2025
Emirp Numbers (Long)
KatieLG
84
39ms
25 May 2025
Emirp Numbers (Long)
WillowWispy
118
2,075ms
25 May 2025
Emirp Numbers (Long)
EnisEfe0
168
504ms
18 May 2025
Emirp Numbers (Long)
khvdm
🥇
63
68ms
12 May 2025
Emirp Numbers (Long)
40fied4t
109
2,087ms
6 May 2025
Emirp Numbers (Long)
Keegan-T
79
352ms
23 Apr 2025
Emirp Numbers (Long)
evan18c
80
344ms
23 Apr 2025
Emirp Numbers (Long)
plcc0
79
192ms
20 Apr 2025
Emirp Numbers (Long)
chartung17
115
3,161ms
20 Apr 2025
Emirp Numbers (Long)
Pyroan
127
768ms
10 Mar 2025
Emirp Numbers (Long)
ahmetdemirag
108
183ms
8 Mar 2025
Emirp Numbers (Long)
noahdorsch
236
1,190ms
8 Mar 2025
Emirp Numbers (Long)
ZakkkkAttackkkk
97
150ms
20 Feb 2025
Emirp Numbers (Long)
kevinnaviapaiva
198
155ms
13 Feb 2025
Emirp Numbers (Long)
Troon
114
4,116ms
7 Feb 2025
Emirp Numbers (Long)
jamesthekee
110
395ms
25 Jan 2025
Emirp Numbers (Long)
ryyyn
84
183ms
6 Jan 2025
Emirp Numbers (Long)
AidanWalter
616
12ms
3 Jan 2025
Emirp Numbers (Long)
returnitynet
320
2,233ms
2 Jan 2025
Emirp Numbers (Long)
klixel
115
377ms
31 Dec 2024
Emirp Numbers (Long)
croc54
121
210ms
30 Dec 2024
Emirp Numbers (Long)
lelbal
94
77ms
23 Dec 2024