The
Calendar
hole will go live in approximately
38 hours
. Why not try and solve it ahead of time?
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
Bytes
Time
Submitted
Christmas Trees
TheZwierzLF
66
37ms
8 days ago
Christmas Trees
blaztoma
59
35ms
10 days ago
Christmas Trees
D-MOVE
59
47ms
24 days ago
Christmas Trees
Lv0Sys
62
36ms
29 Nov 2025
Christmas Trees
pardouin
🥇
56
48ms
1 Sep 2025
Christmas Trees
CaedenHarper
550
36ms
16 Aug 2025
Christmas Trees
sean-niemann
57
35ms
7 Aug 2025
Christmas Trees
olleicua
63
35ms
13 Jun 2025
Christmas Trees
SirBogman
58
33ms
15 Jan 2025
Christmas Trees
goodrichster
103
39ms
18 Dec 2024
Christmas Trees
tatzyr
79
44ms
30 Nov 2024
Christmas Trees
emgordon154
63
34ms
17 Nov 2024
Christmas Trees
LostSyntax21
74
37ms
10 Sep 2024
Christmas Trees
kroolp
65
41ms
14 Jul 2024
Christmas Trees
ovs-code
57
36ms
8 Jul 2024
Christmas Trees
DialFrost
61
36ms
2 Jun 2024
Christmas Trees
aydamak
68
36ms
15 May 2024
Christmas Trees
HumanoidCPU
550
37ms
13 May 2024
Christmas Trees
dokutan
65
47ms
30 Apr 2024
Christmas Trees
Shanethegamer
60
38ms
26 Mar 2024
Christmas Trees
Natanaelel
57
38ms
22 Nov 2023
Christmas Trees
snoozingnewt
79
36ms
4 Nov 2023
Christmas Trees
FlyingPenguin223
69
37ms
2 Nov 2023
Christmas Trees
annaproxy
77
35ms
22 Oct 2023
Christmas Trees
msbranicky
85
36ms
13 Sep 2023
Christmas Trees
Lydxn
🥇
56
36ms
4 May 2023
Christmas Trees
radarek
🥇
56
39ms
4 May 2023
Christmas Trees
JayXon
57
37ms
24 Apr 2023
Christmas Trees
Haksell
67
35ms
22 Feb 2023
Christmas Trees
Steffan153
57
39ms
20 Feb 2023
Christmas Trees
badboj40
65
36ms
14 Feb 2023
Christmas Trees
stefangimmillaro
59
42ms
3 Feb 2023
Christmas Trees
aksyristos
71
37ms
3 Feb 2023
Christmas Trees
4hg
64
37ms
8 Nov 2022
Christmas Trees
OhmNomNom
57
38ms
20 Oct 2022
Christmas Trees
jared-hughes
60
37ms
12 Sep 2022
Christmas Trees
purp
87
41ms
13 Aug 2022
Christmas Trees
Andriamanitra
67
36ms
21 Jul 2022
Christmas Trees
MeWhenI
57
36ms
1 Jul 2022
Christmas Trees
Irratix
60
36ms
27 Jun 2022
Christmas Trees
KatieLG-Transpiler
550
36ms
24 Jun 2022
Christmas Trees
Nekall
126
42ms
2 Jun 2022
Christmas Trees
lynn
59
38ms
25 May 2022
Christmas Trees
Joe-V2
623
36ms
19 Apr 2022
Christmas Trees
KatieLG
69
35ms
10 Apr 2022
Christmas Trees
sisyphus-ppcg
57
39ms
4 Feb 2022
Christmas Trees
takebackfr
67
39ms
7 Dec 2021
Christmas Trees
mokymok
604
36ms
16 Nov 2021
Christmas Trees
olivermrose
61
36ms
7 Oct 2021
Christmas Trees
nwellnhof
57
45ms
1 Oct 2021
Christmas Trees
jbbarth
58
36ms
9 Aug 2021
Christmas Trees
anter69
65
38ms
3 Aug 2021
Christmas Trees
liemvo
62
37ms
7 May 2021
Christmas Trees
jacobsmith
90
36ms
5 Mar 2021
Christmas Trees
NewDefectus
63
37ms
10 Feb 2021
Christmas Trees
hiddicop
61
36ms
22 Jan 2021
Christmas Trees
Waffle3z
63
38ms
21 Jan 2021
Christmas Trees
ferblape
116
36ms
26 Dec 2020
Christmas Trees
GrayJoKing
57
37ms
18 Dec 2020
Christmas Trees
roor0
57
42ms
18 Dec 2020
Christmas Trees
san-nat
104
39ms
15 Dec 2020
Christmas Trees
simonista
57
37ms
15 Dec 2020
Christmas Trees
RowdyLemon
62
41ms
14 Dec 2020
Christmas Trees
jaredcrystal
57
35ms
14 Dec 2020
Christmas Trees
han-yan
57
35ms
12 Dec 2020
Christmas Trees
jstanley0
58
36ms
12 Dec 2020
Christmas Trees
Ardena
64
37ms
11 Dec 2020
Christmas Trees
maths22
58
36ms
10 Dec 2020
Christmas Trees
brianlwatson
63
36ms
9 Dec 2020
Christmas Trees
james-logan
70
36ms
9 Dec 2020
Christmas Trees
primo-ppcg
57
39ms
3 Dec 2020
Christmas Trees
eggplants
76
36ms
26 Nov 2020
Christmas Trees
prplz
59
39ms
28 Oct 2020
Christmas Trees
michaelbaudino
65
35ms
18 Oct 2020
Christmas Trees
yzhs
70
39ms
6 Sep 2020
Christmas Trees
bstrautin
77
35ms
12 Jun 2020
Christmas Trees
proton
77
42ms
9 Jun 2020
Christmas Trees
dwayneparton
71
36ms
13 May 2020
Christmas Trees
janlelis
57
43ms
5 Jan 2020
Christmas Trees
0xddom
75
37ms
18 Dec 2019