Collatz in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Billiards brainfuck Calendar Card Number Validation 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 Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal 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 Billiards brainfuck Calendar Card Number Validation 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 Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 561st jared-hughes 887 130 22ms 15 Dec 2024 562nd lynn 886 65 283ms 5 May 2022 562nd GrayJoKing 🇦🇺 886 65 250ms 5 May 2022 562nd Sakisan 🇧🇪 886 65 178ms 6 May 2022 562nd JayXon 🇺🇸 886 65 301ms 17 Oct 2022 562nd Steffan153 🇫🇮 886 65 181ms 12 Nov 2022 562nd tobeannouncd 886 65 302ms 25 Apr 2025 562nd sean-niemann 🇺🇸 886 65 168ms 9 Jun 2025 569th stefangimmillaro 886 71 89ms 2 Oct 2022 569th Steffan153 🇫🇮 886 71 96ms 23 Feb 2023 569th Shanethegamer 🇺🇸 886 71 90ms 16 May 2023 569th sean-niemann 🇺🇸 886 71 89ms 12 Jul 2024 573rd Shanethegamer 🇺🇸 886 72 116ms 8 May 2025 573rd edsrzf 🇳🇿 886 72 110ms 4 Jul 2025 573rd Yewzir 🇧🇪 886 72 110ms 20 Nov 2025 576th DialFrost 🇸🇬 886 74 16ms 3 hours ago 576th Steffan153 🇫🇮 886 74 17ms 3 hours ago 576th GrayJoKing 🇦🇺 886 74 16ms 3 hours ago 579th DialFrost 🇸🇬 886 95 29ms 10 Dec 2024 580th canissimia 🇦🇶 886 110 2,640ms 20 Feb 2023 581st GrayJoKing 🇦🇺 885 77 76ms 13 Sep 2024 582nd Steffan153 🇫🇮 884 52 7ms 31 Dec 2022 582nd blaztoma 🇱🇹 884 52 7ms 18 Jan 2026 584th albanian-laundromat 884 94 486ms 24 Sep 2025 584th jkelly467 884 94 401ms 23 Oct 2025 584th HumanoidCPU 884 94 479ms 8 Nov 2025 587th DialFrost 🇸🇬 883 76 82ms 17 Mar 2025 588th stefangimmillaro 882 53 37ms 2 Oct 2022 588th Haksell 🇦🇶 882 53 42ms 22 Feb 2023 590th GrayJoKing 🇦🇺 882 70 2ms 6 May 2022 590th ovs-code 🇩🇪 882 70 2ms 8 Oct 2023 590th 09cf 882 70 2ms 8 Oct 2023 590th saito-ta 🇯🇵 882 70 2ms 21 Dec 2023 590th sean-niemann 🇺🇸 882 70 2ms 10 Jul 2024 590th KasperKivimaeki 🇫🇮 882 70 6ms 8 Aug 2025 596th primo-ppcg 🇹🇭 882 85 39ms 14 Jan 2025 596th MeWhenI 🇻🇦 882 85 41ms 21 Apr 2025 598th SiestaGuru 882 88 411ms 9 Jan 2023 598th rifatx 882 88 390ms 5 Jul 2024 598th kmathis22 882 88 398ms 25 Sep 2025 601st Irratix 🇳🇱 882 96 57ms 4 May 2022 601st MeWhenI 🇻🇦 882 96 54ms 1 Jun 2022 601st janbehrens 🇩🇪 882 96 57ms 21 Apr 2023 601st Shanethegamer 🇺🇸 882 96 57ms 15 May 2023 601st Yewzir 🇧🇪 882 96 56ms 11 Nov 2023 601st MateuszPietrzak 🇵🇱 882 96 60ms 18 Nov 2023 601st kkoenig 882 96 58ms 21 Dec 2023 601st BlankSpruce 882 96 58ms 20 Aug 2024 601st fuzzylojik-golf 🇺🇸 882 96 58ms 14 Jun 2025 601st dokutan 882 96 58ms 13 days ago 611th primo-ppcg 🇹🇭 881 52 219ms 5 May 2022 611th dvargas46 🇺🇸 881 52 87ms 22 Dec 2022 613th ovs-code 🇩🇪 881 89 458ms 24 Jul 2024 613th jipsong 🇩🇪 881 89 450ms 7 Apr 2025 613th DialFrost 🇸🇬 881 89 485ms 24 Dec 2025 616th nipzu 881 94 120ms 17 May 2022 616th Natanaelel 🇸🇪 881 94 128ms 17 Jun 2022 616th nkoppel 881 94 122ms 19 Oct 2022 616th ovs-code 🇩🇪 881 94 118ms 21 Jun 2023 616th mousetail 🇳🇱 881 94 122ms 12 Jan 2024 621st snoozingnewt 🇨🇦 881 95 107ms 4 Dec 2025 622nd m-tkach 🇺🇦 881 112 124ms 22 Jun 2025 623rd sisyphus-ppcg 🇦🇺 880 40 336ms 31 Jan 2023 623rd sean-niemann 🇺🇸 880 40 326ms 8 Mar 2025 625th ovs-code 🇩🇪 880 73 340ms 22 Jul 2023 626th frosster 🇨🇦 880 77 5ms 13 days ago 627th sean-niemann 🇺🇸 880 108 288ms 25 May 2024 627th GolfingSuccess 🇬🇷 880 108 279ms 6 Sep 2025 629th primo-ppcg 🇹🇭 880 193 107ms 14 Aug 2025 630th GrayJoKing 🇦🇺 879 72 428ms 31 May 2022 630th Shanethegamer 🇺🇸 879 72 442ms 1 Jun 2022 630th Steffan153 🇫🇮 879 72 430ms 10 Dec 2022 633rd steffan-polygolf 879 74 136ms 14 Feb 2024 633rd prestosilver 🇺🇸 879 74 115ms 18 Dec 2025 635th Shanethegamer 🇺🇸 877 142 1,428ms 27 Mar 2025 635th DialFrost 🇸🇬 877 142 1,412ms 28 Mar 2025 635th emgordon154 877 142 2,009ms 10 Apr 2025 635th GolfingSuccess 🇬🇷 877 142 1,464ms 6 Dec 2025 639th JayXon 🇺🇸 877 157 1,772ms 14 Sep 2025 640th mousetail 🇳🇱 876 40 66ms 29 Aug 2025 First Prev 561–640 of 3,571 Next Last