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 1st Lydxn 🇨🇦 1,000 22 12 Sep 2022 2nd khvdm 980 57 15 Sep 2024 3rd ovs-code 🇩🇪 969 31 8 Mar 2023 4th Irratix 🇳🇱 969 55 4 May 2022 4th nwellnhof 🇩🇪 969 55 4 May 2022 4th m-tkach 🇺🇦 969 55 5 May 2022 4th Lydxn 🇨🇦 969 55 5 May 2022 4th JayXon 🇺🇸 969 55 5 May 2022 4th emplv 🇱🇻 969 55 5 May 2022 4th prplz 🇦🇺 969 55 5 May 2022 4th primo-ppcg 🇹🇭 969 55 5 May 2022 4th GrayJoKing 🇦🇺 969 55 6 May 2022 4th ovs-code 🇩🇪 969 55 6 May 2022 4th sisyphus-ppcg 🇦🇺 969 55 7 May 2022 4th pavelb 969 55 8 Aug 2022 4th stefangimmillaro 969 55 2 Oct 2022 4th MeWhenI 🇻🇦 969 55 2 Oct 2022 4th Steffan153 🇫🇮 969 55 12 Nov 2022 4th Bubbler-4 969 55 14 Nov 2022 4th lukegustafson 🇺🇸 969 55 14 Nov 2023 4th trinityy-7 969 55 17 Dec 2023 4th xsot 🇸🇬 969 55 1 Jun 2024 4th vlpx 🇫🇮 969 55 18 Jun 2024 4th rucin93 🇵🇱 969 55 10 Jul 2024 4th sean-niemann 🇺🇸 969 55 10 Jul 2024 4th pardouin 🇫🇷 969 55 7 Aug 2024 4th Liniarc 969 55 11 Dec 2024 4th targrik 969 55 10 Feb 2025 4th helbling 🇨🇭 969 55 12 May 2025 30th Lydxn 🇨🇦 964 64 21 Dec 2023 30th rhdqor213 964 64 10 Aug 2024 32nd Lydxn 🇨🇦 963 58 4 May 2022 32nd JayXon 🇺🇸 963 58 7 Mar 2023 34th Bubbler-4 955 34 6 May 2022 34th ovs-code 🇩🇪 955 34 7 Mar 2023 36th Lydxn 🇨🇦 953 49 4 May 2022 36th JayXon 🇺🇸 953 49 17 Oct 2022 36th GrayJoKing 🇦🇺 953 49 15 Nov 2022 36th radarek 🇵🇱 953 49 26 Aug 2025 40th nwellnhof 🇩🇪 951 37 4 May 2022 40th primo-ppcg 🇹🇭 951 37 5 May 2022 42nd akshatj27 🇦🇶 951 56 4 May 2022 42nd didion0 🇺🇸 951 56 5 May 2022 42nd NewDefectus 🇮🇱 951 56 6 May 2022 42nd lynn 951 56 6 May 2022 42nd uttumuttu 🇫🇮 951 56 24 May 2022 42nd jared-hughes 951 56 6 Jul 2022 42nd 051 🇸🇬 951 56 8 Aug 2022 42nd BambooleanLogic 🇸🇪 951 56 12 Oct 2022 42nd makinde 951 56 21 Oct 2022 42nd DialFrost 🇸🇬 951 56 14 Nov 2022 42nd AlephSquirrel 951 56 15 Feb 2023 42nd dmrichwa 🇺🇸 951 56 10 Jul 2023 42nd tayloia 🇬🇧 951 56 10 Jul 2023 42nd Argeento 🇵🇱 951 56 25 Aug 2023 42nd weliveinhell 🇭🇹 951 56 2 Oct 2023 42nd coreynash 951 56 6 Oct 2023 42nd dylanarmstrong 951 56 10 Dec 2023 42nd two-bad 🇬🇧 951 56 23 Feb 2024 42nd mehbark 951 56 27 Jul 2024 42nd madeforlosers 951 56 4 Nov 2024 42nd XenThe 🇬🇧 951 56 6 Jun 2025 63rd antimon2 🇯🇵 949 45 10 Sep 2022 64th DelaneyJM 949 47 7 Apr 2025 64th KevinMarquette 🇺🇸 949 47 7 Apr 2025 64th sean-niemann 🇺🇸 949 47 7 Apr 2025 64th corbob 🇨🇦 949 47 8 Apr 2025 64th jborean93 949 47 9 Apr 2025 64th bitsandbeyond 🇳🇱 949 47 8 Jun 2025 64th DialFrost 🇸🇬 949 47 8 Jun 2025 71st Lydxn 🇨🇦 949 89 6 May 2022 71st JayXon 🇺🇸 949 89 7 May 2022 71st nwellnhof 🇩🇪 949 89 5 Jun 2022 71st snyderek 🇺🇸 949 89 19 Feb 2025 75th GrayJoKing 🇦🇺 947 37 5 May 2022 1–75 of 3,340 Next Last