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

Kaffeleif

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22,717
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39 / 110 Holes

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3 / 59 Langs

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16 / 77 Cheevos

📅

12 Days of Christmas
705
Abundant Numbers
801
Abundant Numbers (Long)
872
Arithmetic Numbers
800
Ascending Primes
602
Catalan Numbers
509
Catalan’s Constant
480
Collatz
743
Divisors
775
Emirp Numbers
475
Emirp Numbers (Long)
683
Evil Numbers
865 809
Evil Numbers (Long)
849 801
Factorial Factorisation
146
Farey Sequence
446
Fibonacci
634
Fizz Buzz
713 915 549
Foo Fizz Buzz Bar
747 856
Fractions
851
Happy Numbers
341
Happy Numbers (Long)
469
Leap Years
709
Look and Say
676
Medal Tally
477
Niven Numbers
620
Niven Numbers (Long)
848
Odious Numbers
883 813
Odious Numbers (Long)
883 797
Pangram Grep
552
Pernicious Numbers
751
Pernicious Numbers (Long)
757
Prime Numbers
632
Prime Numbers (Long)
778
Quine
590
Recamán
555
Time Distance
684
Tongue-twisters
467
United States
270
π
77