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 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 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 478th ovs-code 🇩🇪 Julia 868 49 24 Oct 2023 482nd Shanethegamer 🇺🇸 R 868 70 12 Dec 2022 482nd Alessandro-Balconi 🇮🇹 R 868 70 26 Dec 2022 482nd sean-niemann 🇺🇸 R 868 70 28 Feb 2023 485th althryenix Java 868 134 25 Jul 2022 485th MrGagnonHPS Java 868 134 1 Nov 2023 487th GrayJoKing 🇦🇺 Elixir 867 72 31 May 2022 487th Shanethegamer 🇺🇸 Elixir 867 72 1 Jun 2022 487th Steffan153 🇫🇮 Elixir 867 72 10 Dec 2022 490th Grrisly Lua 867 74 25 Mar 2024 491st GrayJoKing 🇦🇺 BASIC 867 84 19 Jun 2022 491st primo-ppcg 🇹🇭 BASIC 867 84 29 Jun 2022 493rd jared-hughes TeX 867 135 16 Mar 2023 494th Shanethegamer 🇺🇸 Zig 867 152 9 Sep 2023 495th johnnythedoggie Swift 866 72 13 May 2022 495th sean-niemann 🇺🇸 Swift 866 72 7 Feb 2023 497th c0d3-4-F00d 🇩🇪 C# 866 89 5 May 2022 497th fkantelberg C# 866 89 15 Jul 2023 497th bac0id C# 866 89 26 Sep 2023 497th TRexOnGit C# 866 89 16 Feb 2024 501st DialFrost 🇸🇬 AWK 865 62 12 Feb 2023 502nd GolfingSuccess 🇬🇷 C 865 71 5 May 2022 502nd emplv 🇱🇻 C 865 71 5 May 2022 502nd JayXon 🇺🇸 C 865 71 7 May 2022 502nd m-tkach 🇺🇦 C 865 71 15 May 2022 502nd nwellnhof 🇩🇪 C 865 71 5 Jun 2022 502nd Irratix 🇳🇱 C 865 71 13 Jun 2022 502nd michael-pruglo 🇺🇦 C 865 71 13 Jul 2022 502nd stefangimmillaro C 865 71 2 Jun 2023 502nd kkoenig C 865 71 21 Dec 2023 511th sean-niemann 🇺🇸 C++ 865 97 5 May 2022 511th inventshah C++ 865 97 6 May 2022 511th roupiq 🇵🇱 C++ 865 97 22 Nov 2023 514th ovs-code 🇩🇪 Forth 864 73 22 Jul 2023 515th nwellnhof 🇩🇪 Perl 862 53 4 May 2022 515th GrayJoKing 🇦🇺 Perl 862 53 6 May 2022 517th lukehewittvandy Java 862 135 18 Jul 2022 517th OriEy Java 862 135 27 Apr 2023 519th Yewzir 🇧🇪 Zig 861 153 9 Sep 2023 519th jacobly0 🇺🇸 Zig 861 153 26 Sep 2023 521st AlephSquirrel Janet 860 80 20 Apr 2023 521st ashtraypettingzoo 🇺🇸 Janet 860 80 1 Apr 2024 523rd Andriamanitra 🇫🇮 Ruby 859 54 21 Jul 2022 523rd jared-hughes Ruby 859 54 12 Sep 2022 523rd OhmNomNom Ruby 859 54 7 Oct 2022 523rd olleicua 🇺🇸 Ruby 859 54 21 Jan 2024 527th ovs-code 🇩🇪 D 859 90 5 May 2022 527th janbehrens 🇩🇪 D 859 90 21 Apr 2023 527th Yewzir 🇧🇪 D 859 90 22 Apr 2023 527th DialFrost 🇸🇬 D 859 90 6 Nov 2023 531st primo-ppcg 🇹🇭 Fortran 858 86 6 May 2022 531st MeWhenI 🇻🇦 Fortran 858 86 17 May 2023 533rd MeWhenI 🇻🇦 BASIC 857 85 27 Jun 2022 533rd Shanethegamer 🇺🇸 BASIC 857 85 15 May 2023 535th tomh1012 C# 857 90 5 May 2022 535th deadp4nda 🇩🇪 C# 857 90 3 days ago 537th Grrisly Go 857 114 25 Mar 2024 538th primo-ppcg 🇹🇭 COBOL 857 221 29 Aug 2023 539th Setvizan JavaScript 856 62 12 Jan 2023 539th GreenBeansAgainstVeganism JavaScript 856 62 13 Jan 2023 Prev 481–540 of 2,256 Next