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 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 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 Transpose Sentence 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 Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Transpose Sentence 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 Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 219th sean-niemann 🇺🇸 920 60 10 Jul 2024 227th Steffan153 🇫🇮 920 67 19 Aug 2024 227th JayXon 🇺🇸 920 67 19 Aug 2024 229th Luca2812 920 127 12 Dec 2022 229th plastic-bottle 920 127 13 Sep 2023 229th h3ra993huskp 🇯🇵 920 127 17 Sep 2023 229th tigerdan2 🇩🇪 920 127 19 Dec 2023 233rd sisyphus-ppcg 🇦🇺 918 50 31 Jan 2023 233rd saito-ta 🇯🇵 918 50 12 Dec 2024 235th uiamn 918 58 6 Sep 2022 235th 5quiwyrm 918 58 29 Sep 2022 235th alasdair-greenland 918 58 13 Jan 2023 238th Lydxn 🇨🇦 918 90 6 May 2022 238th acotis 918 90 9 hours ago 240th Lydxn 🇨🇦 918 107 6 May 2022 240th JayXon 🇺🇸 918 107 9 May 2022 242nd primo-ppcg 🇹🇭 917 24 10 Dec 2022 243rd Herbert00709 🇵🇱 917 92 17 Nov 2023 243rd 4QT0R 917 92 23 Nov 2023 243rd ovs-code 🇩🇪 917 92 3 Jun 2024 246th Irratix 🇳🇱 915 61 7 May 2022 246th TFeld00 🇩🇰 915 61 17 May 2022 246th hallvabo 🇳🇴 915 61 4 Sep 2022 246th DialFrost 🇸🇬 915 61 19 Dec 2022 246th anter69 🇭🇺 915 61 19 Dec 2022 246th Alex-x90 🇺🇸 915 61 27 Dec 2022 246th commandblockguy 🇺🇸 915 61 22 Aug 2023 246th fgrosshans 🇫🇷 915 61 22 Jul 2024 246th duckyluuk 🇳🇱 915 61 15 Aug 2024 246th rucin93 🇵🇱 915 61 8 days ago 246th fuzzylojik-golf 🇺🇸 915 61 37 mins ago 257th nwellnhof 🇩🇪 914 51 4 May 2022 257th primo-ppcg 🇹🇭 914 51 6 May 2022 257th radarek 🇵🇱 914 51 8 May 2022 257th janlelis 914 51 10 May 2022 257th Natanaelel 🇸🇪 914 51 2 Jun 2022 262nd btnlq 914 59 6 Nov 2022 263rd sean-niemann 🇺🇸 914 66 11 days ago 264th tomtheisen 🇺🇸 914 85 10 Apr 2025 265th xnor-gate 913 63 20 Jan 2025 266th JayXon 🇺🇸 913 69 5 Apr 2023 266th Lydxn 🇨🇦 913 69 9 Apr 2023 268th bac0id 913 128 29 Jun 2024 269th Steffan153 🇫🇮 912 76 15 May 2023 269th primo-ppcg 🇹🇭 912 76 15 May 2023 269th Lydxn 🇨🇦 912 76 22 May 2023 269th GrayJoKing 🇦🇺 912 76 24 Aug 2023 273rd MichalMarsalek 🇨🇿 911 71 5 May 2022 273rd Lydxn 🇨🇦 911 71 7 May 2022 273rd GrayJoKing 🇦🇺 911 71 8 May 2022 273rd JayXon 🇺🇸 911 71 8 May 2022 273rd Steffan153 🇫🇮 911 71 9 Mar 2023 273rd Shanethegamer 🇺🇸 911 71 15 May 2023 273rd MeWhenI 🇻🇦 911 71 8 Aug 2023 273rd sean-niemann 🇺🇸 911 71 9 Jan 2025 281st Bubbler-4 910 33 6 May 2022 281st rak1507 🇬🇧 910 33 8 May 2022 281st ngn 🇧🇬 910 33 11 May 2022 281st zacjl 910 33 5 days ago 281st GrayJoKing 🇦🇺 910 33 4 days ago 286th primo-ppcg 🇹🇭 910 61 6 May 2022 286th sisyphus-ppcg 🇦🇺 910 61 14 Jul 2022 288th Steffan153 🇫🇮 910 71 10 Dec 2022 289th sean-niemann 🇺🇸 910 108 25 May 2024 290th Steffan153 🇫🇮 909 71 14 Oct 2022 290th Shanethegamer 🇺🇸 909 71 15 Oct 2022 290th stefangimmillaro 909 71 16 Oct 2022 290th MeWhenI 🇻🇦 909 71 16 Oct 2022 294th annaproxy 909 78 13 Jan 2023 294th IanUtley 909 78 12 Nov 2023 294th GrayJoKing 🇦🇺 909 78 28 Nov 2023 297th Shanethegamer 🇺🇸 909 86 15 May 2023 297th JayXon 🇺🇸 909 86 15 May 2023 297th Steffan153 🇫🇮 909 86 16 May 2023 297th Lydxn 🇨🇦 909 86 16 May 2023 Prev 226–300 of 3,062 Next