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
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
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)
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
Alphabetic Numbers
Apéry’s Constant
Binary Lambda Calculus
Connect Four
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
Hole
Golfer
Chars
Time
Submitted
Reverse Polish Notation
madeforlosers
91
13ms
30 Mar 2026
Reverse Polish Notation
edsrzf
92
11ms
21 Mar 2026
Reverse Polish Notation
Protothor
111
10ms
10 Mar 2026
Reverse Polish Notation
lukegustafson
87
12ms
4 Mar 2026
Reverse Polish Notation
Yax42
96
10ms
21 Jan 2026
Reverse Polish Notation
JOrE20
99
11ms
7 Jan 2026
Reverse Polish Notation
alexsave
103
12ms
27 Dec 2025
Reverse Polish Notation
Lv0Sys
95
12ms
6 Dec 2025
Reverse Polish Notation
gigaprofisi
193
10ms
4 Nov 2025
Reverse Polish Notation
iczelia
126
11ms
11 Oct 2025
Reverse Polish Notation
KatieLG
93
11ms
5 Oct 2025
Reverse Polish Notation
helbling
97
12ms
24 Aug 2025
Reverse Polish Notation
CaedenHarper
107
12ms
23 Aug 2025
Reverse Polish Notation
acollett89
128
11ms
4 Aug 2025
Reverse Polish Notation
fuzzylojik-golf
92
13ms
19 Jul 2025
Reverse Polish Notation
Andrey-Plotnikov
93
12ms
25 Jun 2025
Reverse Polish Notation
dokutan
104
11ms
15 Jun 2025
Reverse Polish Notation
rucin93
🥇
79
11ms
11 Jun 2025
Reverse Polish Notation
SiBeepBoop
103
11ms
15 Apr 2025
Reverse Polish Notation
targrik
92
11ms
3 Apr 2025
Reverse Polish Notation
smclaughlin-cf
102
12ms
4 Mar 2025
Reverse Polish Notation
kirjavascript
89
14ms
14 Feb 2025
Reverse Polish Notation
BalaM314
93
13ms
7 Feb 2025
Reverse Polish Notation
m-tkach
104
11ms
3 Jan 2025
Reverse Polish Notation
DialFrost
99
12ms
24 Dec 2024
Reverse Polish Notation
lifthrasiir
97
11ms
23 Nov 2024
Reverse Polish Notation
ovs-code
87
16ms
16 Nov 2024
Reverse Polish Notation
Salutations45
100
13ms
12 Nov 2024
Reverse Polish Notation
wh3n3v3r
101
12ms
8 Nov 2024
Reverse Polish Notation
FortuiteMan
103
11ms
10 Oct 2024
Reverse Polish Notation
HumanoidCPU
155
10ms
8 Oct 2024
Reverse Polish Notation
LukeBridges
94
11ms
2 Oct 2024
Reverse Polish Notation
mwja
125
11ms
22 Aug 2024
Reverse Polish Notation
emgordon154
87
12ms
7 Aug 2024
Reverse Polish Notation
MeWhenI
100
10ms
3 Aug 2024
Reverse Polish Notation
vlpx
86
12ms
1 Aug 2024
Reverse Polish Notation
weliveinhell
🥇
79
14ms
18 Jul 2024
Reverse Polish Notation
sean-niemann
🥇
79
11ms
18 Jul 2024
Reverse Polish Notation
madex
101
11ms
9 Jul 2024
Reverse Polish Notation
Steffan153
🥇
79
10ms
27 Jun 2024
Reverse Polish Notation
hacker112
97
12ms
24 Jun 2024
Reverse Polish Notation
thisishowmymindworks
88
11ms
24 Jun 2024
Reverse Polish Notation
junkondo-jp
95
11ms
4 Jun 2024
Reverse Polish Notation
neel11235813
101
12ms
17 Mar 2024
Reverse Polish Notation
trinityy-7
97
13ms
15 Mar 2024
Reverse Polish Notation
biocommando
93
13ms
13 Mar 2024
Reverse Polish Notation
two-bad
111
11ms
25 Feb 2024
Reverse Polish Notation
coreynash
88
14ms
15 Feb 2024
Reverse Polish Notation
snoozingnewt
95
10ms
14 Feb 2024
Reverse Polish Notation
olleicua
92
15ms
12 Feb 2024
Reverse Polish Notation
randolchance
109
11ms
4 Jan 2024
Reverse Polish Notation
voytxt
92
11ms
28 Dec 2023
Reverse Polish Notation
efgen
120
14ms
28 Dec 2023
Reverse Polish Notation
Natanaelel
94
12ms
9 Dec 2023
Reverse Polish Notation
unfinishedprogram
249
10ms
28 Nov 2023
Reverse Polish Notation
willpiam
210
10ms
31 Oct 2023
Reverse Polish Notation
Florian-Mt
115
11ms
27 Oct 2023
Reverse Polish Notation
Vaekor
126
10ms
28 Jul 2023
Reverse Polish Notation
strattonwhisler
156
11ms
6 Jul 2023
Reverse Polish Notation
dgerblick
98
14ms
16 Jun 2023
Reverse Polish Notation
Maznek
98
12ms
6 Jun 2023
Reverse Polish Notation
adamnielson42
146
10ms
2 Jun 2023
Reverse Polish Notation
zakariamouhid
134
17ms
11 May 2023
Reverse Polish Notation
Shanethegamer
89
13ms
4 May 2023
Reverse Polish Notation
kcinnu
90
21ms
2 May 2023
Reverse Polish Notation
chasewalden
100
14ms
24 Apr 2023
Reverse Polish Notation
nathanadams
85
12ms
15 Apr 2023
Reverse Polish Notation
janbehrens
104
13ms
14 Apr 2023
Reverse Polish Notation
DayDun
🥇
79
12ms
22 Jan 2023
Reverse Polish Notation
tayloia
92
12ms
10 Jan 2023
Reverse Polish Notation
KatieLG-Transpiler
1,073
12ms
5 Jan 2023
Reverse Polish Notation
BambooleanLogic
91
13ms
14 Dec 2022
Reverse Polish Notation
TehFlaminTaco
113
36ms
10 Nov 2022
Reverse Polish Notation
eranws
93
11ms
13 Oct 2022
Reverse Polish Notation
FlorianCassayre
132
12ms
18 Sep 2022
Reverse Polish Notation
iliazeus
94
30ms
4 Sep 2022
Reverse Polish Notation
dzshn
93
15ms
24 Aug 2022
Reverse Polish Notation
nwellnhof
🥇
79
13ms
25 May 2022
Reverse Polish Notation
Lydxn
🥇
79
13ms
23 May 2022
Reverse Polish Notation
dmrichwa
91
13ms
16 May 2022
Reverse Polish Notation
MathisBullinger
107
14ms
11 May 2022
Reverse Polish Notation
SirBogman
94
12ms
7 May 2022
Reverse Polish Notation
Heathcorp
103
14ms
27 Apr 2022
Reverse Polish Notation
jared-hughes
97
14ms
6 Apr 2022
Reverse Polish Notation
KingSkyrock
106
11ms
17 Mar 2022
Reverse Polish Notation
fitzdotlol
101
13ms
8 Mar 2022
Reverse Polish Notation
daniel-pedersen
103
13ms
6 Mar 2022
Reverse Polish Notation
uttumuttu
90
14ms
5 Mar 2022
Reverse Polish Notation
tomh1012
126
13ms
4 Mar 2022
Reverse Polish Notation
eiburns
126
15ms
28 Feb 2022
Reverse Polish Notation
xem
98
14ms
18 Feb 2022
Reverse Polish Notation
subzey
87
11ms
18 Feb 2022
Reverse Polish Notation
ScottHamper
89
12ms
18 Feb 2022
Reverse Polish Notation
didion0
90
15ms
17 Feb 2022
Reverse Polish Notation
emplv
86
10ms
16 Feb 2022
Reverse Polish Notation
Frowny
101
38ms
16 Feb 2022
Reverse Polish Notation
primo-ppcg
93
12ms
16 Feb 2022
Reverse Polish Notation
itsh01
87
12ms
15 Feb 2022
Reverse Polish Notation
prplz
93
12ms
14 Feb 2022
Reverse Polish Notation
Irratix
86
15ms
13 Feb 2022