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 711th masinag 🇮🇹 870 71 2ms 6 Oct 2024 722nd AlephSquirrel 870 80 12ms 20 Apr 2023 722nd ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 724th dokutan 868 82 22ms 1 Jul 2024 725th nwellnhof 🇩🇪 867 53 6ms 4 May 2022 725th GrayJoKing 🇦🇺 867 53 7ms 6 May 2022 727th DialFrost 🇸🇬 867 56 1,180ms 1 Sep 2025 727th GolfingSuccess 🇬🇷 867 56 905ms 4 days ago 729th albanian-laundromat 867 73 557ms 16 Dec 2025 730th dieggsy 867 97 28ms 8 Oct 2024 731st ovs-code 🇩🇪 867 133 42ms 8 Jul 2024 732nd Andriamanitra 🇫🇮 866 54 41ms 21 Jul 2022 732nd jared-hughes 866 54 37ms 12 Sep 2022 732nd OhmNomNom 866 54 37ms 7 Oct 2022 732nd olleicua 🇺🇸 866 54 41ms 21 Jan 2024 732nd LostSyntax21 🇬🇧 866 54 41ms 12 Mar 2025 732nd AbrahamJLR 🇻🇪 866 54 40ms 4 Jun 2025 732nd vishal-mohanty 866 54 40ms 25 Aug 2025 739th Shanethegamer 🇺🇸 866 85 38ms 15 May 2023 739th albanian-laundromat 866 85 40ms 25 Aug 2025 741st 123mjb 866 96 366ms 20 Nov 2025 741st noescareno 866 96 366ms 21 Nov 2025 743rd emgordon154 866 159 1,606ms 24 Dec 2025 743rd DialFrost 🇸🇬 866 159 1,669ms 17 Jan 2026 745th DialFrost 🇸🇬 865 64 5ms 10 Jul 2024 746th shellbertt 🇨🇦 864 98 61ms 9 May 2022 746th iakolzin 864 98 54ms 26 May 2022 746th Betuaredead 864 98 61ms 5 Jan 2023 746th oceko 864 98 57ms 19 Feb 2024 746th cuzdav 864 98 57ms 4 May 2025 746th timhaj 🇸🇮 864 98 54ms 12 Sep 2025 746th Yax42 🇫🇷 864 98 60ms 4 Oct 2025 753rd emplv 🇱🇻 864 110 279ms 5 May 2022 753rd Shanethegamer 🇺🇸 864 110 287ms 21 Nov 2023 753rd edsrzf 🇳🇿 864 110 292ms 28 Nov 2024 753rd targrik 864 110 271ms 30 Jun 2025 757th deadp4nda 🇩🇪 863 90 390ms 26 Apr 2024 757th 123mjb 863 90 349ms 23 Jun 2025 757th michelebastione 🇮🇹 863 90 407ms 24 Aug 2025 757th razvandmtr 🇷🇴 863 90 403ms 6 Nov 2025 761st TylerBloom 863 96 119ms 22 Mar 2024 762nd Shanethegamer 🇺🇸 863 97 127ms 15 Apr 2025 762nd GolfingSuccess 🇬🇷 863 97 104ms 28 Nov 2025 762nd DialFrost 🇸🇬 863 97 102ms 1 Dec 2025 765th Steffan153 🇫🇮 862 82 1,388ms 23 Feb 2023 766th steffan-polygolf 861 73 87ms 23 Feb 2023 766th MWI-polygolf 861 73 83ms 6 Dec 2023 766th HumanoidCPU 861 73 81ms 7 May 2024 769th Steffan153 🇫🇮 861 78 83ms 4 Feb 2023 770th Yewzir 🇧🇪 861 160 1,887ms 14 Nov 2025 771st GrayJoKing 🇦🇺 860 56 437ms 15 Jan 2024 771st AlephSquirrel 860 56 396ms 21 Jan 2024 771st CaedenHarper 🇨🇦 860 56 484ms 26 days ago 774th Setvizan 860 62 11ms 12 Jan 2023 774th GreenBeansAgainstVeganism 860 62 12ms 13 Jan 2023 774th arctouch-cristiannevianna 860 62 12ms 3 Apr 2023 774th Corxldyphik 860 62 11ms 11 Apr 2023 774th Blockyheadman 860 62 12ms 1 Nov 2023 774th ollyspooner 860 62 12ms 22 Nov 2023 774th itserasmus 860 62 11ms 25 Jan 2024 774th Jacob385 860 62 11ms 13 Mar 2024 774th junkondo-jp 860 62 11ms 30 Jun 2024 774th ShiraJoseph 🇺🇸 860 62 14ms 1 Mar 2025 774th tomh1012 860 62 12ms 3 Dec 2025 785th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 785th rollershutter 860 65 20ms 9 Sep 2022 785th bac0id 860 65 21ms 26 Sep 2023 785th robin-scragg 860 65 23ms 8 Jun 2025 785th RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 785th TransformLikeATensor 860 65 19ms 17 Oct 2025 791st Andriamanitra 🇫🇮 860 67 144ms 26 Apr 2023 792nd MeWhenI 🇻🇦 859 81 8ms 23 May 2023 793rd MeWhenI 🇻🇦 859 145 1,413ms 28 Mar 2025 794th ulucs 858 35 9ms 8 May 2022 794th bstrat 858 35 8ms 6 Jun 2024 794th wh3n3v3r 🇨🇿 858 35 8ms 18 Nov 2024 797th JRaspass 🇬🇧 858 41 339ms 4 May 2022 797th SirBogman 🇺🇸 858 41 230ms 4 May 2022 797th Natanaelel 🇸🇪 858 41 311ms 4 May 2022 800th 5quiwyrm 858 52 293ms 4 Sep 2022 First Prev 721–800 of 3,570 Next Last