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 714th stefangimmillaro 870 71 2ms 2 Jun 2023 714th kkoenig 870 71 2ms 21 Dec 2023 714th JohandeRuiter 🇳🇱 870 71 2ms 14 Sep 2024 714th masinag 🇮🇹 870 71 2ms 6 Oct 2024 725th AlephSquirrel 870 80 12ms 20 Apr 2023 725th ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 727th Shanethegamer 🇺🇸 868 81 18ms 19 Dec 2023 727th emgordon154 868 81 20ms 29 Jul 2025 729th nwellnhof 🇩🇪 867 53 6ms 4 May 2022 729th GrayJoKing 🇦🇺 867 53 7ms 6 May 2022 731st DialFrost 🇸🇬 867 56 1,180ms 1 Sep 2025 731st GolfingSuccess 🇬🇷 867 56 905ms 18 days ago 733rd albanian-laundromat 867 73 562ms 16 Dec 2025 734th dieggsy 867 97 28ms 8 Oct 2024 735th ovs-code 🇩🇪 867 133 42ms 8 Jul 2024 736th Andriamanitra 🇫🇮 866 54 41ms 21 Jul 2022 736th jared-hughes 866 54 37ms 12 Sep 2022 736th OhmNomNom 866 54 37ms 7 Oct 2022 736th olleicua 🇺🇸 866 54 41ms 21 Jan 2024 736th LostSyntax21 🇬🇧 866 54 41ms 12 Mar 2025 736th AbrahamJLR 🇻🇪 866 54 40ms 4 Jun 2025 736th vishal-mohanty 866 54 40ms 25 Aug 2025 743rd Shanethegamer 🇺🇸 866 85 38ms 15 May 2023 743rd albanian-laundromat 866 85 40ms 25 Aug 2025 745th 123mjb 866 96 366ms 20 Nov 2025 745th noescareno 866 96 366ms 21 Nov 2025 747th emgordon154 866 159 1,606ms 24 Dec 2025 747th DialFrost 🇸🇬 866 159 1,669ms 17 Jan 2026 749th DialFrost 🇸🇬 865 64 5ms 10 Jul 2024 750th Shanethegamer 🇺🇸 865 97 134ms 15 Apr 2025 750th GolfingSuccess 🇬🇷 865 97 109ms 28 Nov 2025 750th DialFrost 🇸🇬 865 97 118ms 1 Dec 2025 753rd shellbertt 🇨🇦 864 98 58ms 9 May 2022 753rd iakolzin 864 98 55ms 26 May 2022 753rd Betuaredead 864 98 57ms 5 Jan 2023 753rd oceko 864 98 59ms 19 Feb 2024 753rd cuzdav 864 98 57ms 4 May 2025 753rd timhaj 🇸🇮 864 98 56ms 12 Sep 2025 753rd Yax42 🇫🇷 864 98 57ms 4 Oct 2025 760th emplv 🇱🇻 864 110 294ms 5 May 2022 760th Shanethegamer 🇺🇸 864 110 293ms 21 Nov 2023 760th edsrzf 🇳🇿 864 110 267ms 28 Nov 2024 760th targrik 864 110 282ms 30 Jun 2025 764th deadp4nda 🇩🇪 863 90 390ms 26 Apr 2024 764th 123mjb 863 90 349ms 23 Jun 2025 764th michelebastione 🇮🇹 863 90 407ms 24 Aug 2025 764th razvandmtr 🇷🇴 863 90 403ms 6 Nov 2025 768th TylerBloom 863 96 158ms 22 Mar 2024 769th Steffan153 🇫🇮 862 82 1,388ms 23 Feb 2023 770th steffan-polygolf 861 73 90ms 23 Feb 2023 770th MWI-polygolf 861 73 84ms 6 Dec 2023 770th HumanoidCPU 861 73 83ms 7 May 2024 773rd Yewzir 🇧🇪 861 160 1,887ms 14 Nov 2025 774th GrayJoKing 🇦🇺 860 56 437ms 15 Jan 2024 774th AlephSquirrel 860 56 396ms 21 Jan 2024 774th CaedenHarper 🇨🇦 860 56 484ms 26 Jan 2026 777th Setvizan 860 62 10ms 12 Jan 2023 777th GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 777th arctouch-cristiannevianna 860 62 10ms 3 Apr 2023 777th Corxldyphik 860 62 11ms 11 Apr 2023 777th Blockyheadman 860 62 10ms 1 Nov 2023 777th ollyspooner 860 62 10ms 22 Nov 2023 777th itserasmus 860 62 10ms 25 Jan 2024 777th Jacob385 860 62 11ms 13 Mar 2024 777th junkondo-jp 860 62 10ms 30 Jun 2024 777th ShiraJoseph 🇺🇸 860 62 10ms 1 Mar 2025 777th tomh1012 860 62 11ms 3 Dec 2025 788th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 788th rollershutter 860 65 20ms 9 Sep 2022 788th bac0id 860 65 21ms 26 Sep 2023 788th robin-scragg 860 65 23ms 8 Jun 2025 788th RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 788th TransformLikeATensor 860 65 19ms 17 Oct 2025 794th Andriamanitra 🇫🇮 860 67 144ms 26 Apr 2023 795th rucin93 🇵🇱 859 57 140ms 4 Aug 2024 795th dokutan 859 57 138ms 9 Aug 2024 797th dokutan 859 79 10ms 27 Apr 2024 797th SwordF-Official 🇺🇸 859 79 10ms 1 Feb 2026 799th MeWhenI 🇻🇦 859 81 8ms 23 May 2023 800th MeWhenI 🇻🇦 859 145 1,417ms 28 Mar 2025 First Prev 721–800 of 3,591 Next Last