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 JayXon 🇺🇸 872 157 1,590ms 14 Sep 2025 677th inventshah 871 97 53ms 6 May 2022 677th roupiq 🇵🇱 871 97 49ms 22 Nov 2023 679th AlephSquirrel 870 80 14ms 20 Apr 2023 679th ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 681st janbehrens 🇩🇪 870 90 442ms 21 Apr 2023 681st Yewzir 🇧🇪 870 90 463ms 22 Apr 2023 681st DialFrost 🇸🇬 870 90 440ms 6 Nov 2023 681st Ripick 870 90 439ms 27 Nov 2024 685th GolfingSuccess 🇬🇷 869 71 2ms 5 May 2022 685th emplv 🇱🇻 869 71 3ms 5 May 2022 685th JayXon 🇺🇸 869 71 2ms 7 May 2022 685th m-tkach 🇺🇦 869 71 2ms 15 May 2022 685th nwellnhof 🇩🇪 869 71 2ms 5 Jun 2022 685th Irratix 🇳🇱 869 71 3ms 13 Jun 2022 685th michael-pruglo 🇺🇦 869 71 3ms 13 Jul 2022 685th stefangimmillaro 869 71 2ms 2 Jun 2023 685th kkoenig 869 71 3ms 21 Dec 2023 685th JohandeRuiter 🇳🇱 869 71 3ms 14 Sep 2024 685th masinag 🇮🇹 869 71 2ms 6 Oct 2024 696th nwellnhof 🇩🇪 867 53 7ms 4 May 2022 696th GrayJoKing 🇦🇺 867 53 7ms 6 May 2022 698th dokutan 867 82 24ms 1 Jul 2024 699th Shanethegamer 🇺🇸 866 70 93ms 12 Dec 2022 699th Alessandro-Balconi 🇮🇹 866 70 88ms 26 Dec 2022 701st dieggsy 866 97 41ms 8 Oct 2024 702nd Andriamanitra 🇫🇮 865 54 42ms 21 Jul 2022 702nd jared-hughes 865 54 39ms 12 Sep 2022 702nd OhmNomNom 865 54 47ms 7 Oct 2022 702nd olleicua 🇺🇸 865 54 41ms 21 Jan 2024 702nd LostSyntax21 🇬🇧 865 54 41ms 12 Mar 2025 702nd AbrahamJLR 🇻🇪 865 54 40ms 4 Jun 2025 702nd vishal-mohanty 865 54 42ms 25 Aug 2025 709th DialFrost 🇸🇬 865 64 5ms 10 Jul 2024 710th MeWhenI 🇻🇦 865 85 44ms 27 Jun 2022 710th Shanethegamer 🇺🇸 865 85 42ms 15 May 2023 710th albanian-laundromat 865 85 45ms 25 Aug 2025 713th GolfingSuccess 🇬🇷 864 57 787ms 29 Aug 2025 714th mtirado1 863 75 8ms 13 Aug 2022 715th TylerBloom 863 96 128ms 22 Mar 2024 716th shellbertt 🇨🇦 863 98 55ms 9 May 2022 716th iakolzin 863 98 54ms 26 May 2022 716th Betuaredead 863 98 56ms 5 Jan 2023 716th oceko 863 98 55ms 19 Feb 2024 716th dokutan 863 98 54ms 17 Mar 2024 716th cuzdav 863 98 57ms 4 May 2025 716th timhaj 🇸🇮 863 98 55ms 12 Sep 2025 716th Yax42 🇫🇷 863 98 53ms 4 Oct 2025 724th ovs-code 🇩🇪 863 133 42ms 8 Jul 2024 725th deadp4nda 🇩🇪 862 90 343ms 26 Apr 2024 725th 123mjb 862 90 346ms 23 Jun 2025 725th michelebastione 🇮🇹 862 90 314ms 24 Aug 2025 725th razvandmtr 🇷🇴 862 90 305ms 5 days ago 729th steffan-polygolf 861 73 85ms 23 Feb 2023 729th MWI-polygolf 861 73 81ms 6 Dec 2023 729th HumanoidCPU 861 73 80ms 7 May 2024 732nd Steffan153 🇫🇮 861 78 84ms 4 Feb 2023 733rd Steffan153 🇫🇮 861 82 1,138ms 23 Feb 2023 734th GrayJoKing 🇦🇺 860 56 416ms 15 Jan 2024 734th AlephSquirrel 860 56 704ms 21 Jan 2024 736th Setvizan 860 62 10ms 12 Jan 2023 736th GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 736th arctouch-cristiannevianna 860 62 13ms 3 Apr 2023 736th Corxldyphik 860 62 13ms 11 Apr 2023 736th Blockyheadman 860 62 10ms 1 Nov 2023 736th ollyspooner 860 62 10ms 22 Nov 2023 736th itserasmus 860 62 13ms 25 Jan 2024 736th Jacob385 860 62 10ms 13 Mar 2024 736th junkondo-jp 860 62 10ms 30 Jun 2024 736th ShiraJoseph 🇺🇸 860 62 11ms 1 Mar 2025 746th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 746th rollershutter 860 65 24ms 9 Sep 2022 746th bac0id 860 65 20ms 26 Sep 2023 746th mossiegoat 860 65 23ms 8 Jun 2025 746th RaBa21 🇭🇺 860 65 32ms 11 Jul 2025 First Prev 676–750 of 3,423 Next Last