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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 676th janbehrens 🇩🇪 870 90 442ms 21 Apr 2023 676th Yewzir 🇧🇪 870 90 463ms 22 Apr 2023 676th DialFrost 🇸🇬 870 90 440ms 6 Nov 2023 676th Ripick 870 90 439ms 27 Nov 2024 680th JayXon 🇺🇸 870 157 2,051ms 14 Sep 2025 681st GolfingSuccess 🇬🇷 869 71 2ms 5 May 2022 681st emplv 🇱🇻 869 71 3ms 5 May 2022 681st JayXon 🇺🇸 869 71 2ms 7 May 2022 681st m-tkach 🇺🇦 869 71 2ms 15 May 2022 681st nwellnhof 🇩🇪 869 71 2ms 5 Jun 2022 681st Irratix 🇳🇱 869 71 3ms 13 Jun 2022 681st michael-pruglo 🇺🇦 869 71 3ms 13 Jul 2022 681st stefangimmillaro 869 71 2ms 2 Jun 2023 681st kkoenig 869 71 3ms 21 Dec 2023 681st JohandeRuiter 🇳🇱 869 71 3ms 14 Sep 2024 681st masinag 🇮🇹 869 71 2ms 6 Oct 2024 692nd AlephSquirrel 869 80 14ms 20 Apr 2023 692nd ashtraypettingzoo 🇺🇸 869 80 14ms 1 Apr 2024 694th nwellnhof 🇩🇪 867 53 7ms 4 May 2022 694th GrayJoKing 🇦🇺 867 53 7ms 6 May 2022 696th dokutan 867 82 24ms 1 Jul 2024 697th Shanethegamer 🇺🇸 866 70 93ms 12 Dec 2022 697th Alessandro-Balconi 🇮🇹 866 70 88ms 26 Dec 2022 699th dieggsy 866 97 41ms 8 Oct 2024 700th Andriamanitra 🇫🇮 865 54 42ms 21 Jul 2022 700th jared-hughes 865 54 39ms 12 Sep 2022 700th OhmNomNom 865 54 47ms 7 Oct 2022 700th olleicua 🇺🇸 865 54 41ms 21 Jan 2024 700th LostSyntax21 🇬🇧 865 54 41ms 12 Mar 2025 700th AbrahamJLR 🇻🇪 865 54 40ms 4 Jun 2025 700th vishal-mohanty 865 54 42ms 25 Aug 2025 707th MeWhenI 🇻🇦 865 85 44ms 27 Jun 2022 707th Shanethegamer 🇺🇸 865 85 42ms 15 May 2023 707th albanian-laundromat 865 85 45ms 25 Aug 2025 710th GolfingSuccess 🇬🇷 864 57 1,245ms 29 Aug 2025 711th DialFrost 🇸🇬 864 64 5ms 10 Jul 2024 712th mtirado1 863 75 8ms 13 Aug 2022 713th ovs-code 🇩🇪 863 133 42ms 8 Jul 2024 714th deadp4nda 🇩🇪 862 90 343ms 26 Apr 2024 714th 123mjb 862 90 346ms 23 Jun 2025 714th michelebastione 🇮🇹 862 90 314ms 24 Aug 2025 714th razvandmtr 🇷🇴 862 90 305ms 38 mins ago 718th TylerBloom 862 96 122ms 22 Mar 2024 719th shellbertt 🇨🇦 862 98 55ms 9 May 2022 719th iakolzin 862 98 54ms 26 May 2022 719th Betuaredead 862 98 56ms 5 Jan 2023 719th oceko 862 98 71ms 19 Feb 2024 719th dokutan 862 98 54ms 17 Mar 2024 719th cuzdav 862 98 57ms 4 May 2025 719th timhaj 🇸🇮 862 98 58ms 12 Sep 2025 719th Yax42 🇫🇷 862 98 53ms 4 Oct 2025 727th steffan-polygolf 861 73 85ms 23 Feb 2023 727th MWI-polygolf 861 73 82ms 6 Dec 2023 727th HumanoidCPU 861 73 80ms 7 May 2024 730th Steffan153 🇫🇮 861 82 1,138ms 23 Feb 2023 731st GrayJoKing 🇦🇺 860 56 416ms 15 Jan 2024 731st AlephSquirrel 860 56 704ms 21 Jan 2024 733rd Setvizan 860 62 11ms 12 Jan 2023 733rd GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 733rd arctouch-cristiannevianna 860 62 11ms 3 Apr 2023 733rd Corxldyphik 860 62 11ms 11 Apr 2023 733rd Blockyheadman 860 62 10ms 1 Nov 2023 733rd ollyspooner 860 62 11ms 22 Nov 2023 733rd itserasmus 860 62 11ms 25 Jan 2024 733rd Jacob385 860 62 11ms 13 Mar 2024 733rd junkondo-jp 860 62 12ms 30 Jun 2024 733rd ShiraJoseph 🇺🇸 860 62 10ms 1 Mar 2025 743rd yzhs 🇩🇪 860 65 20ms 16 Jun 2022 743rd rollershutter 860 65 24ms 9 Sep 2022 743rd bac0id 860 65 20ms 26 Sep 2023 743rd mossiegoat 860 65 23ms 8 Jun 2025 743rd RaBa21 🇭🇺 860 65 32ms 11 Jul 2025 743rd TransformLikeATensor 860 65 21ms 20 days ago 749th GrayJoKing 🇦🇺 860 67 84ms 8 Feb 2025 750th Andriamanitra 🇫🇮 859 67 159ms 26 Apr 2023 First Prev 676–750 of 3,404 Next Last