The
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hole will go live in approximately
3 days
. Why not try and solve it ahead of time?
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Hy
Knight
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
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Arabic to Roman
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Arrows
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ASCII Table
Billiards
brainfuck
Calendar
Card Number Validation
Catalan Numbers
Catalan’s Constant
Chess Move Validation
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
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
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Kolakoski Sequence
Leap Years
Levenshtein Distance
Leyland Numbers
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
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
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
QR Encoder
Quadratic Formula
Rectangle Fill
Semiprime Numbers
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Snake
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Turtle
Tutorial
Yellowstone Permutation
Hole
Golfer
Bytes
Time
Submitted
Fractions
emgordon154
147
291ms
72 mins ago
Fractions
snoozingnewt
🥈
93
172ms
23 hours ago
Fractions
Edjyzod
104
10ms
24 hours ago
Fractions
snoozingnewt
138
109ms
2 days ago
Fractions
JOrE20
142
366ms
3 days ago
Fractions
arcpolaris
116
80ms
3 days ago
Fractions
Europe2048
2
136ms
4 days ago
Fractions
dpamar
78
8ms
4 days ago
Fractions
mathematicalcoder
177
11ms
4 days ago
Fractions
zzh1996
139
357ms
5 days ago
Fractions
zzh1996
🥉
100
2ms
5 days ago
Fractions
ihsan-gpt
🥇
73
17ms
6 days ago
Fractions
vlpx
🥇
63
9ms
6 days ago
Fractions
kcinnu
🥇
242
1,628ms
8 days ago
Fractions
JOrE20
73
357ms
8 days ago
Fractions
jore-gpt
🥇
73
16ms
8 days ago
Fractions
JOrE20
🥇
73
16ms
8 days ago
Fractions
Europe2048
73
364ms
10 days ago
Fractions
Yax42
92
6ms
11 days ago
Fractions
HumanoidCPU
141
2ms
12 days ago
Fractions
zzh1996
120
462ms
12 days ago
Fractions
zzh1996
🥇
128
117ms
12 days ago
Fractions
christos-cantina-security
🥇
17
38ms
12 days ago
Fractions
christos-cantina-security
111
17ms
12 days ago
Fractions
GolfingSuccess
🥈
102
13ms
13 days ago
Fractions
jipsong
🥇
94
2,174ms
13 days ago
Fractions
Lv0Sys
115
296ms
13 days ago
Fractions
Lv0Sys
68
366ms
13 days ago
Fractions
Lv0Sys
120
487ms
13 days ago
Fractions
Lv0Sys
76
11ms
13 days ago
Fractions
Europe2048
43
4ms
16 days ago
Fractions
jordansafer
105
10ms
17 days ago
Fractions
albanian-laundromat
🥇
17
38ms
17 days ago
Fractions
Europe2048
81
7ms
19 days ago
Fractions
rbertram90
252
5ms
21 days ago
Fractions
emgordon154
🥇
139
134ms
24 days ago
Fractions
namelessiw
2
159ms
24 days ago
Fractions
Sciman101
151
3ms
24 days ago
Fractions
solisolu
🥇
73
31ms
26 days ago
Fractions
albanian-laundromat
163
66ms
30 Aug 2026
Fractions
zptr1
76
8ms
28 Aug 2026
Fractions
kg583
🥇
139
148ms
27 Aug 2026
Fractions
JOrE20
🥈
151
65ms
27 Aug 2026
Fractions
JOrE20
73
8ms
27 Aug 2026
Fractions
MostParsingVex
130
481ms
25 Aug 2026
Fractions
MostParsingVex
109
1ms
25 Aug 2026
Fractions
kg583
🥈
73
6ms
25 Aug 2026
Fractions
kasarino
223
316ms
23 Aug 2026
Fractions
HumanoidCPU
94
37ms
22 Aug 2026
Fractions
HumanoidCPU
132
123ms
22 Aug 2026
Fractions
HumanoidCPU
123
2,257ms
22 Aug 2026
Fractions
HumanoidCPU
159
360ms
22 Aug 2026
Fractions
HumanoidCPU
78
379ms
22 Aug 2026
Fractions
HumanoidCPU
102
386ms
22 Aug 2026
Fractions
HumanoidCPU
111
12ms
22 Aug 2026
Fractions
codewrite
240
433ms
19 Aug 2026
Fractions
jenova-gemini
103
18ms
19 Aug 2026
Fractions
emplv
70
22ms
18 Aug 2026
Fractions
retrohun
132
44ms
17 Aug 2026
Fractions
zzh1996
💎
13
34ms
13 Aug 2026
Fractions
Europe2048
17
189ms
10 Aug 2026
Fractions
CornerMercury
72
445ms
10 Aug 2026
Fractions
zzh1996
🥇
17
36ms
10 Aug 2026
Fractions
retrohun
102
2ms
9 Aug 2026
Fractions
rainruse
124
2ms
8 Aug 2026
Fractions
scpchicken
🥇
71
458ms
7 Aug 2026
Fractions
Steffan153
95
2ms
5 Aug 2026
Fractions
JOrE20
42
3ms
4 Aug 2026
Fractions
albanian-laundromat
144
47ms
2 Aug 2026
Fractions
emgordon154
121
447ms
1 Aug 2026
Fractions
Europe2048
18
604ms
28 Jul 2026
Fractions
qpwoeirut
🥇
17
38ms
28 Jul 2026
Fractions
qpwoeirut
🥇
73
18ms
27 Jul 2026
Fractions
jiaminglimjm
93
17ms
24 Jul 2026
Fractions
NameRandomString
116
5ms
24 Jul 2026
Fractions
bziman
154
634ms
24 Jul 2026
Fractions
targrik
85
6ms
21 Jul 2026
Fractions
CornerMercury
2
165ms
19 Jul 2026
Fractions
denkyuu1
60
296ms
19 Jul 2026
Fractions
gastropner
115
2ms
19 Jul 2026
Fractions
DialFrost
🥉
248
1,536ms
15 Jul 2026
Fractions
amillerman
104
8ms
14 Jul 2026
Fractions
huagaohan
124
1,288ms
14 Jul 2026
Fractions
DialFrost
68
12ms
14 Jul 2026
Fractions
Europe2048
78
17ms
13 Jul 2026
Fractions
codereport
🥈
14
34ms
13 Jul 2026
Fractions
AdrienHache
124
568ms
12 Jul 2026
Fractions
AdrienHache
103
2ms
12 Jul 2026
Fractions
Yewzir
154
8ms
9 Jul 2026
Fractions
Herbert00709
123
523ms
8 Jul 2026
Fractions
Herbert00709
98
2ms
8 Jul 2026
Fractions
KasperKivimaeki
🥇
118
464ms
7 Jul 2026
Fractions
Yewzir
88
902ms
5 Jul 2026
Fractions
Code-Coder-coder
102
17ms
4 Jul 2026
Fractions
lukegustafson
🥈
14
36ms
1 Jul 2026
Fractions
edsrzf
🥇
46
419ms
30 Jun 2026
Fractions
CaedenHarper
18
48ms
28 Jun 2026
Fractions
albanian-laundromat
🥈
282
370ms
26 Jun 2026
Fractions
kasarino
175
2ms
26 Jun 2026
Fractions
michelebastione
156
440ms
25 Jun 2026