Collatz in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 Morse Decoder Morse Encoder 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 Morse Decoder Morse Encoder 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 675th emplv 🇱🇻 869 71 3ms 5 May 2022 675th JayXon 🇺🇸 869 71 2ms 7 May 2022 675th m-tkach 🇺🇦 869 71 2ms 15 May 2022 675th nwellnhof 🇩🇪 869 71 2ms 5 Jun 2022 675th Irratix 🇳🇱 869 71 3ms 13 Jun 2022 675th michael-pruglo 🇺🇦 869 71 3ms 13 Jul 2022 675th stefangimmillaro 869 71 2ms 2 Jun 2023 675th kkoenig 869 71 3ms 21 Dec 2023 675th JohandeRuiter 🇳🇱 869 71 3ms 14 Sep 2024 675th masinag 🇮🇹 869 71 2ms 6 Oct 2024 686th AlephSquirrel 869 80 14ms 20 Apr 2023 686th ashtraypettingzoo 🇺🇸 869 80 14ms 1 Apr 2024 688th nwellnhof 🇩🇪 867 53 7ms 4 May 2022 688th GrayJoKing 🇦🇺 867 53 7ms 6 May 2022 690th dokutan 867 82 24ms 1 Jul 2024 691st Shanethegamer 🇺🇸 866 70 107ms 12 Dec 2022 691st Alessandro-Balconi 🇮🇹 866 70 98ms 26 Dec 2022 693rd dieggsy 866 97 41ms 8 Oct 2024 694th Andriamanitra 🇫🇮 865 54 42ms 21 Jul 2022 694th jared-hughes 865 54 39ms 12 Sep 2022 694th OhmNomNom 865 54 47ms 7 Oct 2022 694th olleicua 🇺🇸 865 54 41ms 21 Jan 2024 694th LostSyntax21 🇬🇧 865 54 41ms 12 Mar 2025 694th AbrahamJLR 🇻🇪 865 54 40ms 4 Jun 2025 694th vishal-mohanty 865 54 42ms 25 Aug 2025 701st MeWhenI 🇻🇦 865 85 44ms 27 Jun 2022 701st Shanethegamer 🇺🇸 865 85 42ms 15 May 2023 701st albanian-laundromat 865 85 45ms 25 Aug 2025 704th GolfingSuccess 🇬🇷 864 57 1,040ms 29 Aug 2025 705th DialFrost 🇸🇬 864 64 5ms 10 Jul 2024 706th JayXon 🇺🇸 864 157 2,051ms 14 Sep 2025 707th mtirado1 863 75 8ms 13 Aug 2022 708th ovs-code 🇩🇪 863 133 42ms 8 Jul 2024 709th deadp4nda 🇩🇪 862 90 343ms 26 Apr 2024 709th 123mjb 862 90 346ms 23 Jun 2025 709th michelebastione 🇮🇹 862 90 314ms 24 Aug 2025 712th TylerBloom 862 96 131ms 22 Mar 2024 713th shellbertt 🇨🇦 862 98 68ms 9 May 2022 713th iakolzin 862 98 62ms 26 May 2022 713th Betuaredead 862 98 64ms 5 Jan 2023 713th oceko 862 98 62ms 19 Feb 2024 713th dokutan 862 98 65ms 17 Mar 2024 713th cuzdav 862 98 62ms 4 May 2025 713th timhaj 🇸🇮 862 98 72ms 12 Sep 2025 713th Yax42 🇫🇷 862 98 56ms 19 days ago 721st steffan-polygolf 861 73 96ms 23 Feb 2023 721st MWI-polygolf 861 73 110ms 6 Dec 2023 721st HumanoidCPU 861 73 93ms 7 May 2024 724th Steffan153 🇫🇮 861 82 1,138ms 23 Feb 2023 725th GrayJoKing 🇦🇺 860 56 416ms 15 Jan 2024 725th AlephSquirrel 860 56 704ms 21 Jan 2024 727th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 727th rollershutter 860 65 24ms 9 Sep 2022 727th bac0id 860 65 20ms 26 Sep 2023 727th mossiegoat 860 65 23ms 8 Jun 2025 727th RaBa21 🇭🇺 860 65 32ms 11 Jul 2025 727th TransformLikeATensor 860 65 21ms 6 days ago 733rd GrayJoKing 🇦🇺 860 67 84ms 8 Feb 2025 734th Setvizan 859 62 11ms 12 Jan 2023 734th GreenBeansAgainstVeganism 859 62 11ms 13 Jan 2023 734th arctouch-cristiannevianna 859 62 11ms 3 Apr 2023 734th Corxldyphik 859 62 11ms 11 Apr 2023 734th Blockyheadman 859 62 10ms 1 Nov 2023 734th ollyspooner 859 62 11ms 22 Nov 2023 734th itserasmus 859 62 11ms 25 Jan 2024 734th Jacob385 859 62 11ms 13 Mar 2024 734th junkondo-jp 859 62 12ms 30 Jun 2024 734th ShiraJoseph 🇺🇸 859 62 10ms 1 Mar 2025 744th Andriamanitra 🇫🇮 859 67 159ms 26 Apr 2023 745th Steffan153 🇫🇮 859 78 84ms 4 Feb 2023 746th ulucs 858 35 14ms 8 May 2022 746th bstrat 858 35 9ms 6 Jun 2024 746th wh3n3v3r 🇨🇿 858 35 9ms 18 Nov 2024 749th JRaspass 🇬🇧 858 41 416ms 4 May 2022 749th SirBogman 🇺🇸 858 41 304ms 4 May 2022 First Prev 676–750 of 3,386 Next Last