The
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hole will go live in approximately
2 days
. Why not try and solve it ahead of time?
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λ
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𝑒
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p-adic Expansion
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Egel
Fennel
Harbour
Hare
Haxe
Hush
Hy
Knight
Lily
Luau
Odin
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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Alphabetic Numbers
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
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
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
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
Smooth Numbers
Snake
Sphenic Numbers
Thue–Morse Constant
Turtle
Tutorial
Yellowstone Permutation
Hole
Golfer
Bytes
Time
Submitted
Topological Sort
Steffan153
🥇
75
1,330ms
18 hours ago
Topological Sort
snoozingnewt
124
166ms
37 hours ago
Topological Sort
edsrzf
🥇
75
1,289ms
2 days ago
Topological Sort
kmathis22
581
477ms
3 days ago
Topological Sort
JOrE20
186
436ms
3 days ago
Topological Sort
snoozingnewt
🥈
193
1,707ms
3 days ago
Topological Sort
JOrE20
🥈
22,308
15ms
5 days ago
Topological Sort
kkoenig
💎
190
287ms
5 days ago
Topological Sort
arcpolaris
171
192ms
6 days ago
Topological Sort
zzh1996
🥉
173
429ms
6 days ago
Topological Sort
zzh1996
🥈
148
5ms
6 days ago
Topological Sort
codewrite
627
456ms
7 days ago
Topological Sort
JOrE20
111
24ms
8 days ago
Topological Sort
zacjl
20
43ms
12 days ago
Topological Sort
christos-cantina-security
🥉
52
64ms
13 days ago
Topological Sort
christos-cantina-security
🥈
111
192ms
13 days ago
Topological Sort
ihsan-gpt
110
21ms
13 days ago
Topological Sort
christos-cantina-security
22
39ms
13 days ago
Topological Sort
christos-cantina-security
79
112ms
13 days ago
Topological Sort
zzh1996
🥉
168
634ms
13 days ago
Topological Sort
christos-cantina-security
51
4ms
13 days ago
Topological Sort
christos-cantina-security
187
14ms
13 days ago
Topological Sort
bpharaldsson
299
469ms
17 days ago
Topological Sort
jordansafer
212
17ms
18 days ago
Topological Sort
kcinnu
💎
299
1,651ms
19 days ago
Topological Sort
albanian-laundromat
💎
213
237ms
20 days ago
Topological Sort
albanian-laundromat
💎
205
452ms
20 days ago
Topological Sort
JOrE20
107
74ms
22 days ago
Topological Sort
bitsandbeyond
91
3,653ms
26 days ago
Topological Sort
JOrE20
🥈
251
31ms
27 Aug 2026
Topological Sort
stellartux
🥉
175
26ms
26 Aug 2026
Topological Sort
GolfingSuccess
🥈
208
121ms
25 Aug 2026
Topological Sort
MostParsingVex
205
492ms
24 Aug 2026
Topological Sort
MostParsingVex
185
6ms
24 Aug 2026
Topological Sort
albanian-laundromat
💎
145
190ms
20 Aug 2026
Topological Sort
albanian-laundromat
🥉
142
103ms
20 Aug 2026
Topological Sort
albanian-laundromat
🥈
216
363ms
20 Aug 2026
Topological Sort
Mukundan314
💎
85
4,261ms
18 Aug 2026
Topological Sort
zzh1996
61
5ms
10 Aug 2026
Topological Sort
zzh1996
💎
16
43ms
9 Aug 2026
Topological Sort
LostSyntax21
114
93ms
7 Aug 2026
Topological Sort
albanian-laundromat
💎
191
482ms
7 Aug 2026
Topological Sort
NameRandomString
🥉
498
257ms
7 Aug 2026
Topological Sort
nickweissert-star
412
4,217ms
6 Aug 2026
Topological Sort
albanian-laundromat
🦄
166
461ms
5 Aug 2026
Topological Sort
rucin93
🥇
90
93ms
5 Aug 2026
Topological Sort
emplv
94
13ms
5 Aug 2026
Topological Sort
emgordon154
💎
160
750ms
31 Jul 2026
Topological Sort
kg583
🥈
129
283ms
30 Jul 2026
Topological Sort
albanian-laundromat
💎
164
1,581ms
26 Jul 2026
Topological Sort
ovs-code
💎
89
45ms
25 Jul 2026
Topological Sort
Steffan153
🥈
97
1,483ms
24 Jul 2026
Topological Sort
Waffle3z
152
7ms
24 Jul 2026
Topological Sort
Steffan153
💎
122
193ms
23 Jul 2026
Topological Sort
2bular
🥈
17
46ms
22 Jul 2026
Topological Sort
ovs-code
🥈
17
45ms
22 Jul 2026
Topological Sort
duckyluuk
💎
99
4,464ms
19 Jul 2026
Topological Sort
edsrzf
💎
156
713ms
18 Jul 2026
Topological Sort
Lv0Sys
136
25ms
18 Jul 2026
Topological Sort
kumavale
💎
160
165ms
18 Jul 2026
Topological Sort
albanian-laundromat
💎
138
538ms
18 Jul 2026
Topological Sort
edsrzf
91
210ms
17 Jul 2026
Topological Sort
Steffan153
🥉
91
451ms
14 Jul 2026
Topological Sort
Steffan153
🥈
99
28ms
14 Jul 2026
Topological Sort
bizy-coder
99
519ms
14 Jul 2026
Topological Sort
blaztoma
🥈
99
30ms
14 Jul 2026
Topological Sort
blaztoma
53
11ms
14 Jul 2026
Topological Sort
blaztoma
65
45ms
13 Jul 2026
Topological Sort
blaztoma
🥇
53
14ms
13 Jul 2026
Topological Sort
CaedenHarper
77
49ms
13 Jul 2026
Topological Sort
blaztoma
68
669ms
11 Jul 2026
Topological Sort
saito-ta
💎
100
183ms
11 Jul 2026
Topological Sort
KasperKivimaeki
🥈
143
14ms
10 Jul 2026
Topological Sort
KasperKivimaeki
🥈
180
3,083ms
10 Jul 2026
Topological Sort
blaztoma
🥈
147
136ms
9 Jul 2026
Topological Sort
scpchicken
84
319ms
8 Jul 2026
Topological Sort
codereport
🥈
17
46ms
4 Jul 2026
Topological Sort
radarek
🥇
61
52ms
2 Jul 2026
Topological Sort
DialFrost
🥈
161
607ms
30 Jun 2026
Topological Sort
DialFrost
🥉
119
256ms
30 Jun 2026
Topological Sort
DialFrost
🥉
168
811ms
30 Jun 2026
Topological Sort
DialFrost
🥈
87
804ms
30 Jun 2026
Topological Sort
CaedenHarper
🥉
153
235ms
24 Jun 2026
Topological Sort
duckyluuk
98
614ms
24 Jun 2026
Topological Sort
duckyluuk
106
112ms
24 Jun 2026
Topological Sort
albanian-laundromat
197
122ms
23 Jun 2026
Topological Sort
albanian-laundromat
163
501ms
21 Jun 2026
Topological Sort
zzh1996
113
28ms
20 Jun 2026
Topological Sort
snoozingnewt
206
527ms
18 Jun 2026
Topological Sort
prestosilver
211
438ms
16 Jun 2026
Topological Sort
Shanethegamer
🥈
163
1,009ms
15 Jun 2026
Topological Sort
sean-niemann
80
1,134ms
15 Jun 2026
Topological Sort
edsrzf
🥇
132
196ms
12 Jun 2026
Topological Sort
edsrzf
💎
131
1,253ms
12 Jun 2026
Topological Sort
edsrzf
🥈
126
4ms
12 Jun 2026
Topological Sort
edsrzf
🥈
141
475ms
12 Jun 2026
Topological Sort
scpchicken
34
53ms
10 Jun 2026
Topological Sort
albanian-laundromat
🥈
86
643ms
10 Jun 2026
Topological Sort
codereport
111
26ms
8 Jun 2026
Topological Sort
solisolu
193
36ms
6 Jun 2026