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 292nd SpiritAxolotl 🇺🇸 JavaScript 899 59 20 Mar 2024 302nd P-Quentin 🇫🇷 Python 899 63 3 Aug 2022 302nd kaptsanovb Python 899 63 20 Apr 2023 302nd fkantelberg Python 899 63 14 Jul 2023 302nd snoozingnewt 🇺🇸 Python 899 63 10 Sep 2023 302nd keelimeguy 🇺🇸 Python 899 63 6 Nov 2023 302nd VictorStenvers Python 899 63 13 Nov 2023 302nd 1231234md5 🇨🇳 Python 899 63 14 Dec 2023 302nd f-tucker Python 899 63 6 Feb 2024 310th Lydxn 🇨🇦 BASIC 899 81 1 Apr 2023 311th Shanethegamer 🇺🇸 D 899 86 15 May 2023 311th JayXon 🇺🇸 D 899 86 15 May 2023 311th Steffan153 🇫🇮 D 899 86 16 May 2023 311th Lydxn 🇨🇦 D 899 86 16 May 2023 311th GrayJoKing 🇦🇺 D 899 86 11 Aug 2023 316th krcs 🇵🇱 C# 897 86 10 May 2022 316th billings7 🇬🇧 C# 897 86 15 May 2022 316th revlayle 🇺🇸 C# 897 86 7 Dec 2022 319th MeWhenI 🇻🇦 Go 897 109 9 Feb 2023 320th GrayJoKing 🇦🇺 Tcl 896 74 1 Nov 2023 321st lynn F# 896 78 5 May 2022 322nd bwat2 Java 895 130 5 May 2022 322nd yoshykai Java 895 130 6 Jul 2023 324th Andriamanitra 🇫🇮 Haskell 894 67 26 Apr 2023 325th annaproxy Prolog 894 78 13 Jan 2023 325th IanUtley Prolog 894 78 12 Nov 2023 325th GrayJoKing 🇦🇺 Prolog 894 78 28 Nov 2023 328th Betuaredead AWK 893 60 5 Jan 2023 328th Yewzir 🇧🇪 AWK 893 60 12 Feb 2023 328th Steffan153 🇫🇮 AWK 893 60 23 Feb 2023 331st Shanethegamer 🇺🇸 Janet 893 77 15 May 2023 332nd shinh Ruby 892 52 29 Jun 2022 332nd sean-niemann 🇺🇸 Ruby 892 52 1 Jul 2022 332nd MeWhenI 🇻🇦 Ruby 892 52 25 Jul 2023 335th MeWhenI 🇻🇦 Hexagony 892 63 5 May 2022 336th ovs-code 🇩🇪 Factor 892 76 20 Sep 2023 337th michael-pruglo 🇺🇦 C++ 892 94 5 Jul 2022 338th Lydxn 🇨🇦 Swift 891 70 7 May 2022 338th JayXon 🇺🇸 Swift 891 70 9 May 2022 340th Shanethegamer 🇺🇸 Lua 891 72 4 May 2022 340th jared-hughes Lua 891 72 4 May 2022 340th Waffle3z Lua 891 72 5 May 2022 343rd m-tkach 🇺🇦 Dart 890 72 16 Oct 2022 343rd GrayJoKing 🇦🇺 Dart 890 72 22 Oct 2022 343rd emplv 🇱🇻 Dart 890 72 27 Oct 2022 346th stefangimmillaro Rust 890 92 24 Oct 2023 347th marshallward 🇺🇸 Fortran 889 83 10 May 2022 348th primo-ppcg 🇹🇭 Lisp 889 93 7 May 2022 348th AlephSquirrel Lisp 889 93 21 Jan 2023 350th GrayJoKing 🇦🇺 Forth 888 71 10 Aug 2023 351st Steffan153 🇫🇮 Clojure 888 80 11 Dec 2023 352nd Steffan153 🇫🇮 BASIC 888 82 1 Apr 2023 353rd m-tkach 🇺🇦 OCaml 888 90 7 Dec 2023 354th emplv 🇱🇻 Go 888 110 5 May 2022 354th sean-niemann 🇺🇸 Go 888 110 17 Jun 2023 354th Shanethegamer 🇺🇸 Go 888 110 21 Nov 2023 357th SiestaGuru Java 888 131 9 Jan 2023 358th pabloferz Julia 886 48 6 Mar 2024 359th sean-niemann 🇺🇸 Berry 886 62 2 Dec 2023 359th rucin93 🇵🇱 Berry 886 62 28 Feb 2024 Prev 301–360 of 2,260 Next