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 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 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 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 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 675th fkantelberg 872 89 401ms 15 Jul 2023 675th bac0id 872 89 363ms 26 Sep 2023 675th TRexOnGit 872 89 360ms 16 Feb 2024 679th nwellnhof 🇩🇪 872 111 262ms 4 May 2022 679th stefangimmillaro 872 111 259ms 26 Sep 2023 679th kkoenig 872 111 256ms 4 Jan 2024 682nd janbehrens 🇩🇪 871 90 442ms 21 Apr 2023 682nd Yewzir 🇧🇪 871 90 463ms 22 Apr 2023 682nd DialFrost 🇸🇬 871 90 440ms 6 Nov 2023 682nd Ripick 871 90 439ms 27 Nov 2024 686th inventshah 871 97 53ms 6 May 2022 686th roupiq 🇵🇱 871 97 49ms 22 Nov 2023 688th AlephSquirrel 870 80 12ms 20 Apr 2023 688th ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 690th GolfingSuccess 🇬🇷 869 71 2ms 5 May 2022 690th emplv 🇱🇻 869 71 3ms 5 May 2022 690th JayXon 🇺🇸 869 71 2ms 7 May 2022 690th m-tkach 🇺🇦 869 71 2ms 15 May 2022 690th nwellnhof 🇩🇪 869 71 2ms 5 Jun 2022 690th Irratix 🇳🇱 869 71 3ms 13 Jun 2022 690th michael-pruglo 🇺🇦 869 71 3ms 13 Jul 2022 690th stefangimmillaro 869 71 2ms 2 Jun 2023 690th kkoenig 869 71 3ms 21 Dec 2023 690th JohandeRuiter 🇳🇱 869 71 3ms 14 Sep 2024 690th masinag 🇮🇹 869 71 2ms 6 Oct 2024 701st dokutan 868 82 24ms 1 Jul 2024 702nd nwellnhof 🇩🇪 867 53 7ms 4 May 2022 702nd GrayJoKing 🇦🇺 867 53 7ms 6 May 2022 704th dieggsy 867 97 41ms 8 Oct 2024 705th GolfingSuccess 🇬🇷 866 57 787ms 29 Aug 2025 706th Shanethegamer 🇺🇸 866 70 93ms 12 Dec 2022 706th Alessandro-Balconi 🇮🇹 866 70 88ms 26 Dec 2022 708th Andriamanitra 🇫🇮 865 54 42ms 21 Jul 2022 708th jared-hughes 865 54 39ms 12 Sep 2022 708th OhmNomNom 865 54 47ms 7 Oct 2022 708th olleicua 🇺🇸 865 54 41ms 21 Jan 2024 708th LostSyntax21 🇬🇧 865 54 41ms 12 Mar 2025 708th AbrahamJLR 🇻🇪 865 54 40ms 4 Jun 2025 708th vishal-mohanty 865 54 42ms 25 Aug 2025 715th MeWhenI 🇻🇦 865 85 44ms 27 Jun 2022 715th Shanethegamer 🇺🇸 865 85 42ms 15 May 2023 715th albanian-laundromat 865 85 45ms 25 Aug 2025 718th DialFrost 🇸🇬 864 64 5ms 10 Jul 2024 719th mtirado1 863 75 8ms 13 Aug 2022 720th TylerBloom 863 96 127ms 22 Mar 2024 721st shellbertt 🇨🇦 863 98 55ms 9 May 2022 721st iakolzin 863 98 54ms 26 May 2022 721st Betuaredead 863 98 56ms 5 Jan 2023 721st oceko 863 98 55ms 19 Feb 2024 721st dokutan 863 98 54ms 17 Mar 2024 721st cuzdav 863 98 57ms 4 May 2025 721st timhaj 🇸🇮 863 98 55ms 12 Sep 2025 721st Yax42 🇫🇷 863 98 53ms 4 Oct 2025 729th ovs-code 🇩🇪 863 133 42ms 8 Jul 2024 730th Steffan153 🇫🇮 862 82 1,270ms 23 Feb 2023 731st deadp4nda 🇩🇪 862 90 343ms 26 Apr 2024 731st 123mjb 862 90 346ms 23 Jun 2025 731st michelebastione 🇮🇹 862 90 314ms 24 Aug 2025 731st razvandmtr 🇷🇴 862 90 305ms 11 days ago 735th steffan-polygolf 861 73 85ms 23 Feb 2023 735th MWI-polygolf 861 73 81ms 6 Dec 2023 735th HumanoidCPU 861 73 80ms 7 May 2024 738th Steffan153 🇫🇮 861 78 82ms 4 Feb 2023 739th GrayJoKing 🇦🇺 860 56 416ms 15 Jan 2024 739th AlephSquirrel 860 56 704ms 21 Jan 2024 741st Setvizan 860 62 10ms 12 Jan 2023 741st GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 741st arctouch-cristiannevianna 860 62 13ms 3 Apr 2023 741st Corxldyphik 860 62 13ms 11 Apr 2023 741st Blockyheadman 860 62 10ms 1 Nov 2023 741st ollyspooner 860 62 10ms 22 Nov 2023 741st itserasmus 860 62 13ms 25 Jan 2024 741st Jacob385 860 62 10ms 13 Mar 2024 741st junkondo-jp 860 62 10ms 30 Jun 2024 741st ShiraJoseph 🇺🇸 860 62 11ms 1 Mar 2025 First Prev 676–750 of 3,446 Next Last