The Card Number Validation hole will go live in . Why not try and solve it ahead of time?

emplv 🇱🇻

96,286
96,384
💎42
🥇208
🥈69
🥉108

💰

Sponsor

104 / 108 Holes

🔣

22 / 58 Langs

🏆

51 / 75 Cheevos

📅

12 Days of Christmas
34th 5th 8th 💎
24 Game
3rd
99 Bottles of Beer
3rd 16th 7th
Abundant Numbers
4th 9th 3rd 5th 4th
Abundant Numbers (Long)
5th 8th 💎 4th 277th
Arabic to Roman
10th 7th 42nd 3rd 4th
Arithmetic Numbers
1st 3rd 1st 3rd 1st
Arrows
3rd 6th 5th 2nd 3rd 17th
ASCII Table
7th 2nd 2nd 13th
brainfuck
4th 3rd
Catalan Numbers
6th 13th 1st
Catalan’s Constant
2nd 6th 1st
Christmas Trees
9th 7th
Collatz
7th 7th 5th 1st 3rd 2nd
CSS Colors
7th 6th
Cubes
12th 13th
Day of Week
1st 1st 8th
DFA Simulator
1st 💎
Diamonds
9th 7th
Divisors
7th 4th 1st 5th 1st
Emirp Numbers
8th 13th 2nd 9th 3rd
Emirp Numbers (Long)
4th 7th 6th 7th
Emojify
8th 8th 3rd
Evil Numbers
6th 1st 7th 14th 1st 6th
Evil Numbers (Long)
1st 1st 6th 13th 6th 5th
Farey Sequence
3rd 1st 3rd 1st 1st 2nd 1st
Fibonacci
5th 1st 1st 1st 9th 8th
Fizz Buzz
9th 24th 1st 3rd 1st
Foo Fizz Buzz Bar
11th 10th 5th 3rd 1st 1st
Forsyth–Edwards Notation
4th 1st 2nd
Fractions
2nd 10th 11th 7th 1st
Game of Life
4th 5th 3rd 2nd 3rd
Happy Numbers
8th 12th 1st 5th 8th 45th
Happy Numbers (Long)
5th 1st 1st 3rd 7th
Hexdump
2nd 6th
Intersection
3rd 8th 3rd 💎
Inventory Sequence
5th 6th 1st 3rd 7th
ISBN
7th 5th 5th 5th 7th
Jacobi Symbol
3rd 1st 9th 2nd
Kolakoski Constant
3rd 3rd 2nd
Kolakoski Sequence
3rd 1st 8th 1st 💎 4th
Leap Years
5th 9th 12th 1st 7th 6th
Levenshtein Distance
5th 2nd 18th
Leyland Numbers
7th 5th
ln 2
4th 1st
Look and Say
5th 1st 5th
Lucky Numbers
3rd 💎 💎 2nd
Lucky Tickets
21st 2nd
Mahjong
2nd
Maze
3rd 5th 2nd 4th
Medal Tally
3rd 💎 2nd
Morse Decoder
6th 4th
Morse Encoder
9th
Musical Chords
2nd 3rd 2nd 💎
N Queens
3rd 5th 💎
Niven Numbers
15th 13th 1st 17th 4th
Niven Numbers (Long)
11th 14th 1st 10th 3rd
Number Spiral
6th 3rd 4th 💎 💎 2nd
Odious Numbers
8th 1st 6th 11th 1st 5th
Odious Numbers (Long)
8th 1st 6th 11th 6th 6th
Ordinal Numbers
5th 9th 1st 4th 5th
PalindromemordnilaP
3rd 8th 💎
Pangram Grep
14th 10th 9th 7th
Pascal’s Triangle
14th 4th 2nd 💎 4th 1st
Pernicious Numbers
1st 1st 1st 1st 1st 1st 1st
Pernicious Numbers (Long)
12th 3rd 6th 6th 5th 9th
Poker
6th
Prime Numbers
5th 12th 1st 1st 2nd 3rd 109th
Prime Numbers (Long)
3rd 1st 1st 1st 6th 6th 1st
Proximity Grid
6th
QR Decoder
5th 3rd
Quine
1st 1st 2nd 1st 13th 1st 3rd 16th 1st 1st 1st 1st 1st 1st 4th 3rd 1st 1st 1st
Recamán
3rd 1st 3rd 4th
Repeating Decimals
8th 💎 💎
Reverse Polish Notation
3rd 9th 9th
Reversi
5th
Rijndael S-box
3rd 2nd 2nd 4th 💎
Rock-paper-scissors-Spock-lizard
8th 3rd
Roman to Arabic
7th 6th 3rd 1st 4th
Rule 110
22nd
Seven Segment
💎 5th 2nd 2nd
SI Units
2nd
Sierpiński Triangle
10th 6th 7th 9th 4th 7th
Smith Numbers
3rd 1st 💎
Spelling Numbers
4th 44th 3rd
Star Wars Opening Crawl
3rd
Sudoku
2nd
Sudoku v2
4th
Ten-pin Bowling
6th
Time Distance
4th 5th 4th
Tongue-twisters
5th 5th 3rd
Transpose Sentence
2nd 2nd
United States
7th 3rd 5th
Vampire Numbers
3rd 4th
Van Eck Sequence
8th 5th 1st 3rd 6th
Zeckendorf Representation
4th 1st 2nd 2nd 💎
Zodiac Signs
3rd 2nd
γ
1st 3rd
λ
13th 7th 5th 8th
π
4th 9th 1st
τ
3rd 9th
φ
4th 11th 1st 1st
√2
4th 1st 1st
𝑒
1st 6th 1st 1st 5th