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 719th JayXon 🇺🇸 870 71 2ms 7 May 2022 719th m-tkach 🇺🇦 870 71 2ms 15 May 2022 719th nwellnhof 🇩🇪 870 71 2ms 5 Jun 2022 719th Irratix 🇳🇱 870 71 2ms 13 Jun 2022 719th michael-pruglo 🇺🇦 870 71 2ms 13 Jul 2022 719th stefangimmillaro 870 71 2ms 2 Jun 2023 719th kkoenig 870 71 2ms 21 Dec 2023 719th JohandeRuiter 🇳🇱 870 71 2ms 14 Sep 2024 719th masinag 🇮🇹 870 71 2ms 6 Oct 2024 730th AlephSquirrel 870 80 12ms 20 Apr 2023 730th ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 732nd Shanethegamer 🇺🇸 868 81 18ms 19 Dec 2023 732nd emgordon154 868 81 20ms 29 Jul 2025 734th nwellnhof 🇩🇪 867 53 7ms 4 May 2022 734th GrayJoKing 🇦🇺 867 53 8ms 6 May 2022 736th albanian-laundromat 867 73 532ms 16 Dec 2025 737th dieggsy 867 97 28ms 8 Oct 2024 738th ovs-code 🇩🇪 867 133 42ms 8 Jul 2024 739th Andriamanitra 🇫🇮 866 54 41ms 21 Jul 2022 739th jared-hughes 866 54 37ms 12 Sep 2022 739th OhmNomNom 866 54 37ms 7 Oct 2022 739th olleicua 🇺🇸 866 54 41ms 21 Jan 2024 739th LostSyntax21 🇬🇧 866 54 41ms 12 Mar 2025 739th AbrahamJLR 🇻🇪 866 54 40ms 4 Jun 2025 739th vishal-mohanty 866 54 40ms 25 Aug 2025 746th Shanethegamer 🇺🇸 866 85 38ms 15 May 2023 746th albanian-laundromat 866 85 40ms 25 Aug 2025 748th 123mjb 866 96 366ms 20 Nov 2025 748th noescareno 866 96 366ms 21 Nov 2025 750th emgordon154 866 159 1,606ms 24 Dec 2025 750th DialFrost 🇸🇬 866 159 1,779ms 17 Jan 2026 752nd DialFrost 🇸🇬 865 64 5ms 10 Jul 2024 753rd Shanethegamer 🇺🇸 865 97 110ms 15 Apr 2025 753rd GolfingSuccess 🇬🇷 865 97 102ms 28 Nov 2025 753rd DialFrost 🇸🇬 865 97 117ms 1 Dec 2025 756th shellbertt 🇨🇦 864 98 62ms 9 May 2022 756th iakolzin 864 98 64ms 26 May 2022 756th Betuaredead 864 98 67ms 5 Jan 2023 756th oceko 864 98 65ms 19 Feb 2024 756th cuzdav 864 98 62ms 4 May 2025 756th timhaj 🇸🇮 864 98 65ms 12 Sep 2025 756th Yax42 🇫🇷 864 98 64ms 4 Oct 2025 763rd emplv 🇱🇻 864 110 294ms 5 May 2022 763rd Shanethegamer 🇺🇸 864 110 293ms 21 Nov 2023 763rd edsrzf 🇳🇿 864 110 267ms 28 Nov 2024 763rd targrik 864 110 282ms 30 Jun 2025 767th deadp4nda 🇩🇪 863 90 390ms 26 Apr 2024 767th 123mjb 863 90 349ms 23 Jun 2025 767th michelebastione 🇮🇹 863 90 407ms 24 Aug 2025 767th razvandmtr 🇷🇴 863 90 403ms 6 Nov 2025 771st TylerBloom 863 96 125ms 22 Mar 2024 772nd Steffan153 🇫🇮 862 82 1,388ms 23 Feb 2023 773rd steffan-polygolf 861 73 90ms 23 Feb 2023 773rd MWI-polygolf 861 73 84ms 6 Dec 2023 773rd HumanoidCPU 861 73 83ms 7 May 2024 776th Yewzir 🇧🇪 861 160 1,887ms 14 Nov 2025 777th GrayJoKing 🇦🇺 860 56 437ms 15 Jan 2024 777th AlephSquirrel 860 56 396ms 21 Jan 2024 777th CaedenHarper 🇨🇦 860 56 484ms 26 Jan 2026 780th Setvizan 860 62 12ms 12 Jan 2023 780th GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 780th arctouch-cristiannevianna 860 62 13ms 3 Apr 2023 780th Corxldyphik 860 62 11ms 11 Apr 2023 780th Blockyheadman 860 62 11ms 1 Nov 2023 780th ollyspooner 860 62 11ms 22 Nov 2023 780th itserasmus 860 62 10ms 25 Jan 2024 780th Jacob385 860 62 12ms 13 Mar 2024 780th junkondo-jp 860 62 12ms 30 Jun 2024 780th ShiraJoseph 🇺🇸 860 62 10ms 1 Mar 2025 780th tomh1012 860 62 15ms 3 Dec 2025 791st yzhs 🇩🇪 860 65 20ms 16 Jun 2022 791st rollershutter 860 65 20ms 9 Sep 2022 791st bac0id 860 65 21ms 26 Sep 2023 791st robin-scragg 860 65 23ms 8 Jun 2025 791st RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 791st TransformLikeATensor 860 65 19ms 17 Oct 2025 797th Andriamanitra 🇫🇮 860 67 144ms 26 Apr 2023 798th ulucs 859 35 9ms 8 May 2022 798th bstrat 859 35 8ms 6 Jun 2024 798th wh3n3v3r 🇨🇿 859 35 8ms 18 Nov 2024 First Prev 721–800 of 3,598 Next Last