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hole will go live in approximately
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. Why not try and solve it ahead of time?
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12 Days of Christmas
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Abundant Numbers
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Arabic to Roman
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Arrows
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Billiards
brainfuck
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Card Number Validation
Catalan Numbers
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Christmas Trees
Collatz
Connect Four
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
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Fractions
Game of Life
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Intersection
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ISBN
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Leap Years
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ln 2
Look and Say
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Lucky Tickets
Mahjong
Mandelbrot
Maze
Medal Tally
Minesweeper
Morse Decoder
Morse Encoder
Multitap Input
Musical Chords
N Queens
Nim
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
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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
Ulam Sequence
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
Chess960 Decoder
Chess960 Encoder
Crossword
CSS Colors (Inverse)
CSS Grid
Dragon Curve
Ellipse Perimeters
Flags
Floyd-Steinberg Dithering
Hexagonal Spiral
Highly Composite Numbers
Huffman Encoder
Langton’s Ant
Lyndon Factorization
NFA Simulator
Numbrix
Odd Polyomino Tiling
p-adic Expansion
Polygon Triangulations
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Quadratic Formula
Rectangle Fill
Semiprime Numbers
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Snake
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Turtle
Tutorial
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Hole
Golfer
Chars
Time
Submitted
Abundant Numbers
madeforlosers
168
89ms
22 Apr 2026
Abundant Numbers
KatieLG
162
95ms
30 Nov 2025
Abundant Numbers
snoozingnewt
56
122ms
9 Oct 2025
Abundant Numbers
CaedenHarper
168
134ms
16 Aug 2025
Abundant Numbers
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36
142ms
4 Apr 2025
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165
133ms
9 Dec 2024
Abundant Numbers
dokutan
73
118ms
14 Oct 2024
Abundant Numbers
Mabeloid
168
90ms
18 Sep 2024
Abundant Numbers
HumanoidCPU
168
98ms
17 May 2024
Abundant Numbers
gusruben
111
117ms
12 Mar 2024
Abundant Numbers
ovs-code
34
133ms
31 Dec 2023
Abundant Numbers
msbranicky
77
117ms
23 Sep 2023
Abundant Numbers
MaliPatuljak
37
125ms
3 Sep 2023
Abundant Numbers
SirFireball3521
36
134ms
29 Jul 2023
Abundant Numbers
elektricM
45
137ms
29 Jul 2023
Abundant Numbers
Natanaelel
33
142ms
13 May 2023
Abundant Numbers
sisyphus-ppcg
35
137ms
9 Feb 2023
Abundant Numbers
Steffan153
33
130ms
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Abundant Numbers
retrohun
168
89ms
27 Dec 2022
Abundant Numbers
jjatria
42
185ms
29 Jul 2022
Abundant Numbers
KatieLG-Transpiler
168
94ms
24 Jun 2022
Abundant Numbers
krcs
43
112ms
30 Apr 2022
Abundant Numbers
scpchicken
35
125ms
23 Mar 2022
Abundant Numbers
Shanethegamer
35
144ms
19 Dec 2021
Abundant Numbers
Lydxn
🥇
32
138ms
13 Nov 2021
Abundant Numbers
MeWhenI
168
90ms
9 Nov 2021
Abundant Numbers
mokymok
213
90ms
9 Nov 2021
Abundant Numbers
JRaspass
40
142ms
9 May 2021
Abundant Numbers
Indivicivet
43
113ms
22 Mar 2021
Abundant Numbers
lancew
183
93ms
10 Jul 2020
Abundant Numbers
efgen
71
118ms
10 Jun 2020
Abundant Numbers
gmoshkin
41
129ms
12 May 2020
Abundant Numbers
Attero
35
154ms
16 Apr 2020
Abundant Numbers
AlexDaniel
33
132ms
5 Apr 2020
Abundant Numbers
prplz
33
128ms
12 Mar 2020
Abundant Numbers
RustemB
41
123ms
28 Feb 2020
Abundant Numbers
kypi
78
122ms
18 Feb 2020
Abundant Numbers
SirBogman
33
133ms
8 Feb 2020
Abundant Numbers
nwellnhof
🥇
32
149ms
25 Jan 2020
Abundant Numbers
primo-ppcg
🥇
32
141ms
20 Nov 2019
Abundant Numbers
GrayJoKing
🥇
32
137ms
18 Nov 2019