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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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 597th sean-niemann 🇺🇸 883 70 2ms 10 Jul 2024 597th KasperKivimaeki 🇫🇮 883 70 6ms 8 Aug 2025 603rd SiestaGuru 883 88 434ms 9 Jan 2023 603rd rifatx 883 88 437ms 5 Jul 2024 603rd kmathis22 883 88 412ms 25 Sep 2025 606th primo-ppcg 🇹🇭 882 52 219ms 5 May 2022 606th dvargas46 🇺🇸 882 52 87ms 22 Dec 2022 608th frosster 🇨🇦 882 77 5ms 8 Feb 2026 609th Shanethegamer 🇺🇸 882 83 1,496ms 4 May 2022 610th primo-ppcg 🇹🇭 882 85 39ms 14 Jan 2025 610th MeWhenI 🇻🇦 882 85 41ms 21 Apr 2025 612th nipzu 882 94 128ms 17 May 2022 612th Natanaelel 🇸🇪 882 94 129ms 17 Jun 2022 612th nkoppel 882 94 128ms 19 Oct 2022 612th ovs-code 🇩🇪 882 94 131ms 21 Jun 2023 612th mousetail 🇳🇱 882 94 136ms 12 Jan 2024 617th Irratix 🇳🇱 882 96 60ms 4 May 2022 617th MeWhenI 🇻🇦 882 96 62ms 1 Jun 2022 617th janbehrens 🇩🇪 882 96 58ms 21 Apr 2023 617th Shanethegamer 🇺🇸 882 96 62ms 15 May 2023 617th Yewzir 🇧🇪 882 96 71ms 11 Nov 2023 617th MateuszPietrzak 🇵🇱 882 96 63ms 18 Nov 2023 617th kkoenig 882 96 62ms 21 Dec 2023 617th BlankSpruce 882 96 62ms 20 Aug 2024 617th fuzzylojik-golf 🇺🇸 882 96 65ms 14 Jun 2025 617th dokutan 882 96 76ms 8 Feb 2026 627th ovs-code 🇩🇪 881 73 340ms 22 Jul 2023 628th ovs-code 🇩🇪 881 89 458ms 24 Jul 2024 628th jipsong 🇩🇪 881 89 450ms 7 Apr 2025 628th DialFrost 🇸🇬 881 89 485ms 24 Dec 2025 631st sisyphus-ppcg 🇦🇺 880 40 382ms 31 Jan 2023 631st sean-niemann 🇺🇸 880 40 361ms 8 Mar 2025 633rd canissimia 🇦🇶 880 50 42ms 5 May 2022 633rd ovs-code 🇩🇪 880 50 245ms 7 May 2022 633rd sisyphus-ppcg 🇦🇺 880 50 50ms 20 Feb 2023 633rd sean-niemann 🇺🇸 880 50 42ms 9 Jun 2025 633rd pardouin 🇫🇷 880 50 43ms 22 Aug 2025 638th sean-niemann 🇺🇸 880 108 335ms 25 May 2024 638th GolfingSuccess 🇬🇷 880 108 340ms 6 Sep 2025 638th edsrzf 🇳🇿 880 108 330ms 22 days ago 641st primo-ppcg 🇹🇭 880 193 107ms 14 Aug 2025 642nd GrayJoKing 🇦🇺 879 72 433ms 31 May 2022 642nd Shanethegamer 🇺🇸 879 72 437ms 1 Jun 2022 642nd Steffan153 🇫🇮 879 72 442ms 10 Dec 2022 645th steffan-polygolf 879 74 131ms 14 Feb 2024 645th prestosilver 🇺🇸 879 74 145ms 18 Dec 2025 647th Steffan153 🇫🇮 878 75 2,676ms 23 days ago 648th GrayJoKing 🇦🇺 878 84 35ms 19 Jun 2022 648th primo-ppcg 🇹🇭 878 84 36ms 29 Jun 2022 648th MeWhenI 🇻🇦 878 84 38ms 30 Dec 2025 651st emgordon154 877 96 117ms 3 Dec 2025 652nd Shanethegamer 🇺🇸 877 142 1,195ms 27 Mar 2025 652nd DialFrost 🇸🇬 877 142 1,201ms 28 Mar 2025 652nd emgordon154 877 142 1,224ms 10 Apr 2025 652nd GolfingSuccess 🇬🇷 877 142 1,214ms 6 Dec 2025 656th mousetail 🇳🇱 876 40 66ms 29 Aug 2025 657th Shanethegamer 🇺🇸 875 51 474ms 15 May 2023 658th DialFrost 🇸🇬 875 73 149ms 3 Jun 2025 659th madeforlosers 875 95 450ms 18 days ago 660th c0d3-4-F00d 🇩🇪 874 61 12ms 6 May 2022 660th jackkav 874 61 11ms 26 Jun 2022 660th TechNolaByte 874 61 12ms 6 Jul 2022 660th Heathcorp 🇦🇺 874 61 12ms 17 Jul 2022 660th C0de5mith 🇺🇸 874 61 13ms 3 Aug 2022 660th sebipopa 🇷🇴 874 61 11ms 18 Aug 2022 660th moikaturns 🇬🇧 874 61 13ms 25 Sep 2022 660th FlorianCassayre 🇫🇷 874 61 12ms 27 Sep 2022 660th Mazn3k 874 61 13ms 1 Feb 2023 660th tvcv901 874 61 12ms 22 Mar 2023 660th unfinishedprogram 874 61 12ms 19 Jul 2023 660th snoozingnewt 🇨🇦 874 61 11ms 23 Sep 2023 660th funnyboy-roks 874 61 12ms 9 May 2024 660th bac0id 874 61 15ms 29 Jun 2024 660th FortuiteMan 🇫🇷 874 61 12ms 10 Oct 2024 660th RobertHoeh 874 61 13ms 5 Apr 2025 660th LvLError 874 61 11ms 29 May 2025 660th miles-evan 874 61 22ms 5 Aug 2025 660th alexsave 874 61 11ms 13 Oct 2025 660th ComradeSquirrel 874 61 11ms 21 days ago 680th NerdyMcNerd42 874 64 21ms 26 Oct 2022 680th tpasfieldERAU 874 64 24ms 14 Nov 2022 680th CheeseCake628 🇳🇴 874 64 23ms 6 Jan 2023 680th adamnielson42 🇺🇸 874 64 21ms 25 Apr 2023 680th nathsou 🇫🇷 874 64 21ms 2 Sep 2023 680th zwxzwxzwx21 874 64 24ms 30 Jan 2024 680th steffan-polygolf 874 64 21ms 8 Mar 2024 680th Jacob385 874 64 59ms 4 Apr 2024 680th gallium-gonzollium 874 64 26ms 26 Aug 2024 689th dokutan 873 62 5ms 28 Apr 2025 690th Shanethegamer 🇺🇸 873 66 172ms 4 May 2022 690th scpchicken 🇵🇼 873 66 254ms 5 May 2022 690th sisyphus-ppcg 🇦🇺 873 66 173ms 6 May 2022 690th Natanaelel 🇸🇪 873 66 144ms 15 Jun 2022 690th Z-snails 873 66 254ms 27 Feb 2023 690th Jeremy-Stafford 873 66 258ms 27 Feb 2023 690th alomiF 873 66 287ms 1 Sep 2023 690th btnlq 873 66 145ms 17 Oct 2023 690th Shengxuan-Zhang 873 66 278ms 20 Feb 2026 699th johnnythedoggie 873 72 102ms 13 May 2022 699th kaascevich 873 72 104ms 8 Jul 2025 First Prev 601–700 of 3,665 Next Last