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 601st DialFrost 🇸🇬 R 844 72 22 Oct 2023 602nd sean-niemann 🇺🇸 Lua 844 76 7 May 2022 602nd frosster Lua 844 76 12 May 2023 602nd kyleclaassen Lua 844 76 20 May 2023 602nd RockOfStone Lua 844 76 17 Mar 2024 606th Irratix 🇳🇱 Haskell 843 71 4 May 2022 606th christianlegge Haskell 843 71 28 Jul 2022 606th jtnuttall Haskell 843 71 4 Oct 2022 606th cake287 Haskell 843 71 15 Jan 2023 606th VictorFordham Haskell 843 71 30 Sep 2023 606th epic-programmer-guy Haskell 843 71 19 Feb 2024 612th mtirado1 Swift 843 74 24 Dec 2022 612th Betuaredead Swift 843 74 6 Jan 2023 612th KatieLG 🇬🇧 Swift 843 74 15 Jan 2023 612th bwat2 Swift 843 74 31 Mar 2023 612th stackotter Swift 843 74 29 May 2023 612th HumanoidCPU Swift 843 74 17 Feb 2024 612th ovs-code 🇩🇪 Swift 843 74 15 days ago 619th Maximizer02 Java 843 138 2 Oct 2023 619th azka1368 Java 843 138 23 Nov 2023 621st randolchance JavaScript 842 63 8 Jan 2023 621st CatsAreFluffy JavaScript 842 63 18 Feb 2023 621st amiralitaheri JavaScript 842 63 23 Feb 2023 621st RuyiLi JavaScript 842 63 1 Apr 2023 621st TaserTheFox 🇺🇸 JavaScript 842 63 25 May 2023 621st pfysches-boop JavaScript 842 63 6 Aug 2023 621st mhgockel JavaScript 842 63 19 Aug 2023 621st NickTheEASDude 🇺🇸 JavaScript 842 63 18 Jan 2024 629th NewDefectus 🇮🇱 C 842 73 6 May 2022 629th inventshah C 842 73 12 Jun 2022 629th Natanaelel 🇸🇪 C 842 73 15 Jun 2022 629th 78790709 C 842 73 19 Oct 2022 629th Herbert00709 🇵🇱 C 842 73 22 Dec 2023 634th Shanethegamer 🇺🇸 F# 842 83 4 May 2022 635th Re-Adventures 🇮🇳 Go 842 116 16 Jul 2023 635th Yewzir 🇧🇪 Go 842 116 7 Feb 2024 637th JayXon 🇺🇸 Crystal 841 56 9 May 2022 638th typeswitch-dev 🇵🇹 Forth 841 75 22 Jul 2023 639th sean-niemann 🇺🇸 D 840 92 4 May 2022 639th MeWhenI 🇻🇦 D 840 92 10 Oct 2022 639th Betuaredead D 840 92 5 Jan 2023 642nd jared-hughes C++ 839 100 20 Jul 2022 642nd ZakkkkAttackkkk 🇵🇭 C++ 839 100 10 Aug 2022 642nd Walter225 C++ 839 100 25 Jul 2023 645th Natanaelel 🇸🇪 Coconut 838 57 17 Jan 2024 646th retrohun AWK 838 64 6 Nov 2022 646th Re-Adventures 🇮🇳 AWK 838 64 7 Nov 2022 646th stellartux AWK 838 64 26 Dec 2023 649th stefangimmillaro Fortran 838 88 26 Sep 2023 650th bschorno C# 838 92 12 Oct 2022 650th ChrisTheisen C# 838 92 14 Dec 2022 650th kellantech C# 838 92 4 Jul 2023 650th Mezzofloat C# 838 92 26 Aug 2023 650th Maximizer02 C# 838 92 1 Oct 2023 650th michelebastione 🇮🇹 C# 838 92 22 Dec 2023 656th Smetalo Java 837 139 25 Aug 2022 656th ToxicP1e Java 837 139 2 Mar 2023 658th ovs-code 🇩🇪 Clojure 836 85 11 Dec 2023 659th Shanethegamer 🇺🇸 Rust 836 98 26 Oct 2022 660th Shanethegamer 🇺🇸 Lisp 835 99 27 Apr 2023 Prev 601–660 of 2,262 Next