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 721st CaedenHarper 🇨🇦 870 54 1,364ms 27 Sep 2025 721st sean-niemann 🇺🇸 870 54 1,464ms 27 Sep 2025 721st albanian-laundromat 🇺🇸 870 54 1,468ms 14 Nov 2025 721st xsot 🇸🇬 870 54 1,138ms 15 Nov 2025 725th GolfingSuccess 🇬🇷 870 71 2ms 5 May 2022 725th emplv 🇱🇻 870 71 2ms 5 May 2022 725th JayXon 🇺🇸 870 71 2ms 7 May 2022 725th m-tkach 🇺🇦 870 71 2ms 15 May 2022 725th nwellnhof 🇩🇪 870 71 2ms 5 Jun 2022 725th Irratix 🇳🇱 870 71 2ms 13 Jun 2022 725th michael-pruglo 🇺🇦 870 71 2ms 13 Jul 2022 725th stefangimmillaro 870 71 2ms 2 Jun 2023 725th kkoenig 870 71 2ms 21 Dec 2023 725th JohandeRuiter 🇳🇱 870 71 2ms 14 Sep 2024 725th masinag 🇮🇹 870 71 2ms 6 Oct 2024 725th Herbert00709 🇵🇱 870 71 3ms 3 days ago 737th AlephSquirrel 870 80 12ms 20 Apr 2023 737th ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 737th error256 870 80 18ms 19 Mar 2026 740th Shanethegamer 🇺🇸 870 97 110ms 15 Apr 2025 740th GolfingSuccess 🇬🇷 870 97 102ms 28 Nov 2025 740th DialFrost 🇸🇬 870 97 109ms 1 Dec 2025 743rd ovs-code 🇩🇪 870 133 42ms 8 Jul 2024 744th JayXon 🇺🇸 870 157 1,799ms 14 Sep 2025 745th nwellnhof 🇩🇪 868 53 6ms 4 May 2022 745th GrayJoKing 🇦🇺 868 53 7ms 6 May 2022 747th albanian-laundromat 🇺🇸 868 73 532ms 16 Dec 2025 748th Shanethegamer 🇺🇸 868 85 38ms 15 May 2023 748th albanian-laundromat 🇺🇸 868 85 40ms 25 Aug 2025 750th dieggsy 868 97 31ms 8 Oct 2024 751st DialFrost 🇸🇬 866 64 5ms 10 Jul 2024 752nd 123mjb 866 96 366ms 20 Nov 2025 752nd noescareno 866 96 366ms 21 Nov 2025 754th emplv 🇱🇻 865 110 348ms 5 May 2022 754th Shanethegamer 🇺🇸 865 110 309ms 21 Nov 2023 754th targrik 865 110 340ms 30 Jun 2025 757th TylerBloom 864 96 118ms 22 Mar 2024 758th shellbertt 🇨🇦 864 98 59ms 9 May 2022 758th iakolzin 864 98 64ms 26 May 2022 758th Betuaredead 864 98 62ms 5 Jan 2023 758th oceko 864 98 58ms 19 Feb 2024 758th cuzdav 864 98 61ms 4 May 2025 758th timhaj 🇸🇮 864 98 64ms 12 Sep 2025 758th Yax42 🇫🇷 864 98 67ms 4 Oct 2025 758th liamjermy6 864 98 64ms 20 days ago 766th Yewzir 🇧🇪 864 158 1,596ms 4 days ago 767th nwellnhof 🇩🇪 863 51 40ms 4 May 2022 767th primo-ppcg 🇹🇭 863 51 46ms 6 May 2022 767th janlelis 863 51 40ms 10 May 2022 767th Natanaelel 🇸🇪 863 51 42ms 2 Jun 2022 767th blaztoma 🇱🇹 863 51 40ms 11 Mar 2026 772nd deadp4nda 🇩🇪 863 90 415ms 26 Apr 2024 772nd 123mjb 863 90 409ms 23 Jun 2025 772nd michelebastione 🇮🇹 863 90 435ms 24 Aug 2025 772nd razvandmtr 🇷🇴 863 90 425ms 6 Nov 2025 776th steffan-polygolf 862 73 97ms 23 Feb 2023 776th MWI-polygolf 862 73 93ms 6 Dec 2023 776th HumanoidCPU 862 73 91ms 7 May 2024 779th GrayJoKing 🇦🇺 861 56 470ms 15 Jan 2024 779th AlephSquirrel 861 56 419ms 21 Jan 2024 779th CaedenHarper 🇨🇦 861 56 454ms 26 Jan 2026 782nd MeWhenI 🇻🇦 861 145 1,217ms 28 Mar 2025 783rd rucin93 🇵🇱 860 57 141ms 4 Aug 2024 783rd dokutan 860 57 133ms 9 Aug 2024 785th Setvizan 860 62 16ms 12 Jan 2023 785th GreenBeansAgainstVeganism 860 62 12ms 13 Jan 2023 785th arctouch-cristiannevianna 860 62 12ms 3 Apr 2023 785th Corxldyphik 860 62 11ms 11 Apr 2023 785th Blockyheadman 860 62 12ms 1 Nov 2023 785th ollyspooner 860 62 13ms 22 Nov 2023 785th itserasmus 860 62 14ms 25 Jan 2024 785th Jacob385 860 62 12ms 13 Mar 2024 785th junkondo-jp 860 62 11ms 30 Jun 2024 785th ShiraJoseph 🇺🇸 860 62 13ms 1 Mar 2025 785th tomh1012 860 62 12ms 3 Dec 2025 796th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 796th rollershutter 860 65 20ms 9 Sep 2022 796th bac0id 860 65 21ms 26 Sep 2023 796th robin-scragg 860 65 23ms 8 Jun 2025 796th RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 First Prev 721–800 of 3,744 Next Last