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 ><> 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 ALGOL 68 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 ><> 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 ALGOL 68 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 719th OhmNomNom 866 54 37ms 7 Oct 2022 719th olleicua 🇺🇸 866 54 41ms 21 Jan 2024 719th LostSyntax21 🇬🇧 866 54 42ms 12 Mar 2025 719th AbrahamJLR 🇻🇪 866 54 40ms 4 Jun 2025 719th vishal-mohanty 866 54 40ms 25 Aug 2025 726th GolfingSuccess 🇬🇷 866 57 1,160ms 29 Aug 2025 727th Shanethegamer 🇺🇸 866 85 38ms 15 May 2023 727th albanian-laundromat 866 85 40ms 25 Aug 2025 729th 123mjb 866 96 366ms 20 Nov 2025 729th noescareno 866 96 366ms 21 Nov 2025 731st emgordon154 866 159 1,606ms 24 Dec 2025 731st DialFrost 🇸🇬 866 159 1,669ms 21 days ago 733rd DialFrost 🇸🇬 864 64 5ms 10 Jul 2024 734th shellbertt 🇨🇦 864 98 61ms 9 May 2022 734th iakolzin 864 98 60ms 26 May 2022 734th Betuaredead 864 98 61ms 5 Jan 2023 734th oceko 864 98 57ms 19 Feb 2024 734th dokutan 864 98 54ms 17 Mar 2024 734th cuzdav 864 98 57ms 4 May 2025 734th timhaj 🇸🇮 864 98 54ms 12 Sep 2025 734th Yax42 🇫🇷 864 98 60ms 4 Oct 2025 734th emgordon154 864 98 59ms 16 mins ago 743rd emplv 🇱🇻 864 110 289ms 5 May 2022 743rd Shanethegamer 🇺🇸 864 110 255ms 21 Nov 2023 743rd edsrzf 🇳🇿 864 110 296ms 28 Nov 2024 743rd targrik 864 110 281ms 30 Jun 2025 747th deadp4nda 🇩🇪 863 90 390ms 26 Apr 2024 747th 123mjb 863 90 430ms 23 Jun 2025 747th michelebastione 🇮🇹 863 90 407ms 24 Aug 2025 747th razvandmtr 🇷🇴 863 90 403ms 6 Nov 2025 751st TylerBloom 863 96 120ms 22 Mar 2024 752nd Shanethegamer 🇺🇸 863 97 127ms 15 Apr 2025 752nd GolfingSuccess 🇬🇷 863 97 104ms 28 Nov 2025 752nd DialFrost 🇸🇬 863 97 110ms 1 Dec 2025 755th Steffan153 🇫🇮 862 82 1,388ms 23 Feb 2023 756th steffan-polygolf 861 73 87ms 23 Feb 2023 756th MWI-polygolf 861 73 83ms 6 Dec 2023 756th HumanoidCPU 861 73 81ms 7 May 2024 759th Steffan153 🇫🇮 861 78 83ms 4 Feb 2023 760th Yewzir 🇧🇪 861 160 2,399ms 14 Nov 2025 761st GrayJoKing 🇦🇺 860 56 463ms 15 Jan 2024 761st AlephSquirrel 860 56 431ms 21 Jan 2024 761st CaedenHarper 🇨🇦 860 56 484ms 12 days ago 764th Setvizan 860 62 11ms 12 Jan 2023 764th GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 764th arctouch-cristiannevianna 860 62 11ms 3 Apr 2023 764th Corxldyphik 860 62 11ms 11 Apr 2023 764th Blockyheadman 860 62 12ms 1 Nov 2023 764th ollyspooner 860 62 11ms 22 Nov 2023 764th itserasmus 860 62 11ms 25 Jan 2024 764th Jacob385 860 62 10ms 13 Mar 2024 764th junkondo-jp 860 62 11ms 30 Jun 2024 764th ShiraJoseph 🇺🇸 860 62 10ms 1 Mar 2025 764th tomh1012 860 62 11ms 3 Dec 2025 775th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 775th rollershutter 860 65 20ms 9 Sep 2022 775th bac0id 860 65 21ms 26 Sep 2023 775th robin-scragg 860 65 23ms 8 Jun 2025 775th RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 775th TransformLikeATensor 860 65 19ms 17 Oct 2025 781st Andriamanitra 🇫🇮 860 67 144ms 26 Apr 2023 782nd MeWhenI 🇻🇦 859 81 8ms 23 May 2023 783rd MeWhenI 🇻🇦 859 145 1,432ms 28 Mar 2025 784th ulucs 858 35 9ms 8 May 2022 784th bstrat 858 35 9ms 6 Jun 2024 784th wh3n3v3r 🇨🇿 858 35 8ms 18 Nov 2024 787th JRaspass 🇬🇧 858 41 339ms 4 May 2022 787th SirBogman 🇺🇸 858 41 230ms 4 May 2022 787th Natanaelel 🇸🇪 858 41 311ms 4 May 2022 790th 5quiwyrm 858 52 293ms 4 Sep 2022 790th MeWhenI 🇻🇦 858 52 301ms 28 Jan 2023 790th Feniske 🇫🇷 858 52 289ms 7 Nov 2023 790th dcgjb 858 52 294ms 29 Jan 2024 790th JPRuskin 🇬🇧 858 52 294ms 7 Apr 2025 790th IISResetMe 858 52 309ms 7 Apr 2025 790th Ripick 858 52 308ms 1 Jun 2025 797th jared-hughes 858 72 2ms 6 Jul 2022 797th Steffan153 🇫🇮 858 72 2ms 3 Jan 2023 797th MeWhenI 🇻🇦 858 72 3ms 7 May 2023 797th ListeriaM 858 72 2ms 22 Aug 2023 First Prev 721–800 of 3,542 Next Last