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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 718th xsot 🇸🇬 870 54 1,138ms 15 Nov 2025 722nd GolfingSuccess 🇬🇷 870 71 2ms 5 May 2022 722nd emplv 🇱🇻 870 71 2ms 5 May 2022 722nd JayXon 🇺🇸 870 71 2ms 7 May 2022 722nd m-tkach 🇺🇦 870 71 2ms 15 May 2022 722nd nwellnhof 🇩🇪 870 71 2ms 5 Jun 2022 722nd Irratix 🇳🇱 870 71 2ms 13 Jun 2022 722nd michael-pruglo 🇺🇦 870 71 2ms 13 Jul 2022 722nd stefangimmillaro 870 71 2ms 2 Jun 2023 722nd kkoenig 870 71 2ms 21 Dec 2023 722nd JohandeRuiter 🇳🇱 870 71 2ms 14 Sep 2024 722nd masinag 🇮🇹 870 71 2ms 6 Oct 2024 733rd AlephSquirrel 870 80 12ms 20 Apr 2023 733rd ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 733rd error256 870 80 18ms 20 days ago 736th Shanethegamer 🇺🇸 870 97 110ms 15 Apr 2025 736th GolfingSuccess 🇬🇷 870 97 102ms 28 Nov 2025 736th DialFrost 🇸🇬 870 97 109ms 1 Dec 2025 739th ovs-code 🇩🇪 869 133 42ms 8 Jul 2024 740th nwellnhof 🇩🇪 868 53 6ms 4 May 2022 740th GrayJoKing 🇦🇺 868 53 7ms 6 May 2022 742nd albanian-laundromat 🇺🇸 868 73 532ms 16 Dec 2025 743rd Shanethegamer 🇺🇸 868 85 38ms 15 May 2023 743rd albanian-laundromat 🇺🇸 868 85 40ms 25 Aug 2025 745th dieggsy 868 97 31ms 8 Oct 2024 746th emgordon154 868 159 1,606ms 24 Dec 2025 746th DialFrost 🇸🇬 868 159 1,763ms 17 Jan 2026 748th DialFrost 🇸🇬 866 64 5ms 10 Jul 2024 749th 123mjb 866 96 366ms 20 Nov 2025 749th noescareno 866 96 366ms 21 Nov 2025 751st emplv 🇱🇻 865 110 348ms 5 May 2022 751st Shanethegamer 🇺🇸 865 110 309ms 21 Nov 2023 751st targrik 865 110 340ms 30 Jun 2025 754th Steffan153 🇫🇮 864 82 1,323ms 23 Feb 2023 755th TylerBloom 864 96 123ms 22 Mar 2024 756th shellbertt 🇨🇦 864 98 63ms 9 May 2022 756th iakolzin 864 98 57ms 26 May 2022 756th Betuaredead 864 98 60ms 5 Jan 2023 756th oceko 864 98 74ms 19 Feb 2024 756th cuzdav 864 98 63ms 4 May 2025 756th timhaj 🇸🇮 864 98 65ms 12 Sep 2025 756th Yax42 🇫🇷 864 98 54ms 4 Oct 2025 756th liamjermy6 864 98 61ms 7 days ago 764th nwellnhof 🇩🇪 863 51 40ms 4 May 2022 764th primo-ppcg 🇹🇭 863 51 42ms 6 May 2022 764th janlelis 863 51 38ms 10 May 2022 764th Natanaelel 🇸🇪 863 51 40ms 2 Jun 2022 764th blaztoma 🇱🇹 863 51 38ms 11 Mar 2026 769th deadp4nda 🇩🇪 863 90 374ms 26 Apr 2024 769th 123mjb 863 90 367ms 23 Jun 2025 769th michelebastione 🇮🇹 863 90 378ms 24 Aug 2025 769th razvandmtr 🇷🇴 863 90 387ms 6 Nov 2025 773rd Yewzir 🇧🇪 863 160 1,812ms 14 Nov 2025 774th steffan-polygolf 862 73 92ms 23 Feb 2023 774th MWI-polygolf 862 73 92ms 6 Dec 2023 774th HumanoidCPU 862 73 82ms 7 May 2024 777th GrayJoKing 🇦🇺 861 56 470ms 15 Jan 2024 777th AlephSquirrel 861 56 419ms 21 Jan 2024 777th CaedenHarper 🇨🇦 861 56 396ms 26 Jan 2026 780th MeWhenI 🇻🇦 861 145 1,417ms 28 Mar 2025 781st rucin93 🇵🇱 860 57 153ms 4 Aug 2024 781st dokutan 860 57 145ms 9 Aug 2024 783rd Setvizan 860 62 10ms 12 Jan 2023 783rd GreenBeansAgainstVeganism 860 62 12ms 13 Jan 2023 783rd arctouch-cristiannevianna 860 62 12ms 3 Apr 2023 783rd Corxldyphik 860 62 12ms 11 Apr 2023 783rd Blockyheadman 860 62 12ms 1 Nov 2023 783rd ollyspooner 860 62 12ms 22 Nov 2023 783rd itserasmus 860 62 14ms 25 Jan 2024 783rd Jacob385 860 62 13ms 13 Mar 2024 783rd junkondo-jp 860 62 15ms 30 Jun 2024 783rd ShiraJoseph 🇺🇸 860 62 14ms 1 Mar 2025 783rd tomh1012 860 62 11ms 3 Dec 2025 794th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 794th rollershutter 860 65 20ms 9 Sep 2022 794th bac0id 860 65 21ms 26 Sep 2023 794th robin-scragg 860 65 23ms 8 Jun 2025 794th RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 794th TransformLikeATensor 860 65 21ms 17 Oct 2025 800th Andriamanitra 🇫🇮 860 67 144ms 26 Apr 2023 First Prev 721–800 of 3,704 Next Last