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 Continued Fractions 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 Continued Fractions 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 640th Shanethegamer 🇺🇸 879 72 463ms 1 Jun 2022 640th Steffan153 🇫🇮 879 72 442ms 10 Dec 2022 643rd steffan-polygolf 879 74 132ms 14 Feb 2024 643rd prestosilver 🇺🇸 879 74 131ms 18 Dec 2025 645th Shanethegamer 🇺🇸 877 142 1,445ms 27 Mar 2025 645th DialFrost 🇸🇬 877 142 1,410ms 28 Mar 2025 645th emgordon154 877 142 1,516ms 10 Apr 2025 645th GolfingSuccess 🇬🇷 877 142 1,534ms 6 Dec 2025 649th JayXon 🇺🇸 877 157 1,772ms 14 Sep 2025 650th mousetail 🇳🇱 876 40 66ms 29 Aug 2025 651st GrayJoKing 🇦🇺 876 84 35ms 19 Jun 2022 651st primo-ppcg 🇹🇭 876 84 36ms 29 Jun 2022 651st MeWhenI 🇻🇦 876 84 38ms 30 Dec 2025 654th Shanethegamer 🇺🇸 875 51 511ms 15 May 2023 655th c0d3-4-F00d 🇩🇪 874 61 13ms 6 May 2022 655th jackkav 874 61 10ms 26 Jun 2022 655th TechNolaByte 874 61 10ms 6 Jul 2022 655th Heathcorp 🇦🇺 874 61 11ms 17 Jul 2022 655th C0de5mith 🇺🇸 874 61 10ms 3 Aug 2022 655th sebipopa 🇷🇴 874 61 11ms 18 Aug 2022 655th moikaturns 🇬🇧 874 61 12ms 25 Sep 2022 655th FlorianCassayre 🇫🇷 874 61 11ms 27 Sep 2022 655th Mazn3k 874 61 11ms 1 Feb 2023 655th tvcv901 874 61 11ms 22 Mar 2023 655th unfinishedprogram 874 61 10ms 19 Jul 2023 655th snoozingnewt 🇨🇦 874 61 11ms 23 Sep 2023 655th funnyboy-roks 874 61 10ms 9 May 2024 655th bac0id 874 61 11ms 29 Jun 2024 655th madex 🇩🇪 874 61 12ms 9 Jul 2024 655th FortuiteMan 🇫🇷 874 61 11ms 10 Oct 2024 655th RobertHoeh 874 61 11ms 5 Apr 2025 655th LvLError 874 61 14ms 29 May 2025 655th miles-evan 874 61 13ms 5 Aug 2025 655th alexsave 874 61 12ms 13 Oct 2025 675th emgordon154 874 96 117ms 3 Dec 2025 676th dokutan 873 62 5ms 28 Apr 2025 677th NerdyMcNerd42 873 64 20ms 26 Oct 2022 677th tpasfieldERAU 873 64 23ms 14 Nov 2022 677th CheeseCake628 🇳🇴 873 64 23ms 6 Jan 2023 677th adamnielson42 🇺🇸 873 64 19ms 25 Apr 2023 677th nathsou 🇫🇷 873 64 21ms 2 Sep 2023 677th zwxzwxzwx21 873 64 24ms 30 Jan 2024 677th steffan-polygolf 873 64 21ms 8 Mar 2024 677th Jacob385 873 64 59ms 4 Apr 2024 677th gallium-gonzollium 873 64 28ms 26 Aug 2024 686th Shanethegamer 🇺🇸 873 66 172ms 4 May 2022 686th scpchicken 🇵🇼 873 66 254ms 5 May 2022 686th sisyphus-ppcg 🇦🇺 873 66 173ms 6 May 2022 686th Natanaelel 🇸🇪 873 66 144ms 15 Jun 2022 686th Z-snails 873 66 254ms 27 Feb 2023 686th Jeremy-Stafford 873 66 258ms 27 Feb 2023 686th alomiF 873 66 293ms 1 Sep 2023 686th btnlq 873 66 145ms 17 Oct 2023 686th Shengxuan-Zhang 873 66 278ms 19 days ago 695th johnnythedoggie 873 72 93ms 13 May 2022 695th kaascevich 873 72 90ms 8 Jul 2025 697th DialFrost 🇸🇬 873 73 149ms 3 Jun 2025 698th inventshah 873 97 73ms 6 May 2022 698th roupiq 🇵🇱 873 97 66ms 22 Nov 2023 698th emgordon154 873 97 56ms 8 Feb 2026 701st HPWiz 🇳🇿 872 49 265ms 4 May 2022 701st JayXon 🇺🇸 872 49 250ms 5 May 2022 701st Steffan153 🇫🇮 872 49 256ms 10 Dec 2022 701st ovs-code 🇩🇪 872 49 403ms 24 Oct 2023 701st sean-niemann 🇺🇸 872 49 268ms 12 Jul 2024 706th DialFrost 🇸🇬 872 76 82ms 17 Mar 2025 707th DialFrost 🇸🇬 872 86 40ms 24 Oct 2024 707th stefangimmillaro 872 86 39ms 14 Jan 2025 709th c0d3-4-F00d 🇩🇪 872 89 368ms 5 May 2022 709th fkantelberg 872 89 388ms 15 Jul 2023 709th bac0id 872 89 374ms 26 Sep 2023 709th TRexOnGit 872 89 423ms 16 Feb 2024 713th janbehrens 🇩🇪 872 90 467ms 21 Apr 2023 713th Yewzir 🇧🇪 872 90 459ms 22 Apr 2023 713th Ripick 872 90 459ms 27 Nov 2024 713th emgordon154 872 90 476ms 10 Dec 2025 717th MeWhenI 🇻🇦 872 109 286ms 9 Feb 2023 718th GolfingSuccess 🇬🇷 870 71 2ms 5 May 2022 718th emplv 🇱🇻 870 71 2ms 5 May 2022 718th JayXon 🇺🇸 870 71 2ms 7 May 2022 First Prev 641–720 of 3,595 Next Last