Collatz in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table brainfuck Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers Pangram Grep Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku v2 Ten-pin Bowling Time Distance Tongue-twisters United States Vampire Numbers Van Eck Sequence Zodiac Signs γ λ π τ φ √2 𝑒 All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript Julia K Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust sed SQL Swift Tcl TeX V VimL Wren Zig Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript Julia K Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust sed SQL Swift Tcl TeX V VimL Wren Zig Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table brainfuck Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers Pangram Grep Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku v2 Ten-pin Bowling Time Distance Tongue-twisters United States Vampire Numbers Van Eck Sequence Zodiac Signs γ λ π τ φ √2 𝑒 # Golfer Lang Points Chars Time 661st Codsilla 🇨🇦 Julia 834 51 1 Jul 2022 662nd DialFrost 🇸🇬 Zig 834 158 10 Sep 2023 663rd Bubbler-4 Python 833 68 15 Nov 2022 663rd neel11235813 Python 833 68 31 Dec 2022 663rd Rubiksmath Python 833 68 14 Aug 2023 663rd SB-945 Python 833 68 7 Feb 2024 667th Innf107 Haskell 832 72 12 Nov 2022 667th eskildam Haskell 832 72 27 Nov 2022 667th strout Haskell 832 72 14 Dec 2023 670th eshilo-draper Swift 832 75 6 Sep 2022 671st raszpi 🇭🇺 Dart 832 77 1 Sep 2023 672nd lynn OCaml 832 96 11 Jul 2023 673rd CatsAreFluffy C++ 831 101 18 Feb 2023 673rd annaproxy C++ 831 101 9 May 2023 673rd wojtekmal C++ 831 101 15 Nov 2023 676th Schmitt-Very-Cool Java 831 140 28 Nov 2023 677th SirBogman 🇺🇸 K 830 36 5 May 2022 677th HPWiz 🇬🇧 K 830 36 7 May 2022 677th Natanaelel 🇸🇪 K 830 36 15 Jun 2022 677th Steffan153 🇫🇮 K 830 36 18 Jan 2023 681st scpchicken 🇵🇼 Perl 830 55 4 May 2022 681st Natanaelel 🇸🇪 Perl 830 55 4 May 2022 681st SirBogman 🇺🇸 Perl 830 55 5 May 2022 681st Shanethegamer 🇺🇸 Perl 830 55 19 May 2023 685th Alex-x90 🇺🇸 C 830 74 4 Dec 2022 685th undersquire C 830 74 24 Jun 2023 685th rdmsr C 830 74 24 Jun 2023 685th Bmrl7 C 830 74 9 Jul 2023 685th Vinterion C 830 74 6 Nov 2023 685th namelessiw C 830 74 28 Dec 2023 685th KasperKivimaeki 🇫🇮 C 830 74 20 Jan 2024 685th Jonatan6 🇩🇰 C 830 74 15 Mar 2024 685th Mandrzejy 🇵🇱 C 830 74 20 days ago 685th LorenzoDeGaspari C 830 74 4 hours ago 695th ChiefChippy2 Ruby 829 56 4 May 2022 695th anter69 🇭🇺 Ruby 829 56 12 Feb 2024 695th zHarrowed 🇫🇮 Ruby 829 56 11 Mar 2024 698th elisherer 🇮🇱 JavaScript 829 64 5 Jun 2022 698th Ashikpaul 🇮🇳 JavaScript 829 64 29 Jul 2022 698th LukeBridges 🇬🇧 JavaScript 829 64 26 Oct 2022 698th florton JavaScript 829 64 18 Jan 2023 698th DayDun 🇸🇪 JavaScript 829 64 24 Jan 2023 698th lyphyser JavaScript 829 64 3 Jun 2023 698th Davr1 🇨🇿 JavaScript 829 64 14 Oct 2023 698th stellartux JavaScript 829 64 26 Dec 2023 706th Shanethegamer 🇺🇸 V 829 76 4 Sep 2023 707th Andriamanitra 🇫🇮 Janet 829 83 17 Apr 2023 707th Natanaelel 🇸🇪 Janet 829 83 8 Jul 2023 709th SirBogman 🇺🇸 Fortran 829 89 4 May 2022 710th Mist124 🇨🇭 C# 829 93 24 Jun 2022 710th Smetalo C# 829 93 25 Aug 2022 712th Steffan153 🇫🇮 Bash 828 55 21 Dec 2022 713th Shanethegamer 🇺🇸 Crystal 827 57 15 Dec 2022 713th anter69 🇭🇺 Crystal 827 57 23 Feb 2023 713th stefangimmillaro Crystal 827 57 6 May 2023 716th sean-niemann 🇺🇸 PHP 826 67 5 May 2022 716th pschmid0 🇺🇸 PHP 826 67 5 Aug 2022 716th arobson13 🇨🇦 PHP 826 67 11 Apr 2023 716th janbehrens 🇩🇪 PHP 826 67 17 May 2023 716th DialFrost 🇸🇬 PHP 826 67 19 Nov 2023 Prev 661–720 of 2,262 Next