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 224th Nickmiste 923 84 9 Nov 2022 224th postie77 923 84 19 May 2023 224th ertz1ertz 923 84 13 Sep 2024 224th Grabnukebomb 923 84 13 Sep 2024 224th Shanethegamer 🇺🇸 923 84 9 Apr 2025 224th HumanoidCPU 923 84 10 Apr 2025 224th annaproxy 923 84 11 Apr 2025 224th Re-Adventures 🇮🇳 923 84 15 Apr 2025 224th janbehrens 🇩🇪 923 84 17 Apr 2025 235th ovs-code 🇩🇪 922 60 9 Oct 2023 235th GrayJoKing 🇦🇺 922 60 11 Oct 2023 235th Lydxn 🇨🇦 922 60 11 Oct 2023 235th GolfingSuccess 🇬🇷 922 60 16 Nov 2023 235th Steffan153 🇫🇮 922 60 28 Jan 2024 235th JayXon 🇺🇸 922 60 29 Jan 2024 235th rucin93 🇵🇱 922 60 10 Jul 2024 235th sean-niemann 🇺🇸 922 60 10 Jul 2024 243rd Steffan153 🇫🇮 922 67 19 Aug 2024 243rd JayXon 🇺🇸 922 67 19 Aug 2024 245th Lydxn 🇨🇦 921 107 6 May 2022 245th JayXon 🇺🇸 921 107 9 May 2022 247th Lydxn 🇨🇦 920 90 6 May 2022 247th kumavale 920 90 3 Sep 2025 249th sisyphus-ppcg 🇦🇺 919 50 31 Jan 2023 249th saito-ta 🇯🇵 919 50 12 Dec 2024 251st sean-niemann 🇺🇸 919 66 29 May 2025 252nd uiamn 918 58 6 Sep 2022 252nd 5quiwyrm 918 58 29 Sep 2022 252nd alasdair-greenland 918 58 13 Jan 2023 252nd kirjavascript 918 58 4 Aug 2025 252nd Posandu 918 58 26 Aug 2025 252nd mrxz 🇳🇱 918 58 3 Sep 2025 258th Herbert00709 🇵🇱 918 92 17 Nov 2023 258th 4QT0R 918 92 23 Nov 2023 258th ovs-code 🇩🇪 918 92 3 Jun 2024 261st primo-ppcg 🇹🇭 917 24 10 Dec 2022 262nd nwellnhof 🇩🇪 916 51 4 May 2022 262nd primo-ppcg 🇹🇭 916 51 6 May 2022 262nd janlelis 916 51 10 May 2022 262nd Natanaelel 🇸🇪 916 51 2 Jun 2022 266th Irratix 🇳🇱 916 61 7 May 2022 266th TFeld00 🇩🇰 916 61 17 May 2022 266th hallvabo 🇳🇴 916 61 4 Sep 2022 266th DialFrost 🇸🇬 916 61 19 Dec 2022 266th anter69 🇭🇺 916 61 19 Dec 2022 266th Alex-x90 🇺🇸 916 61 27 Dec 2022 266th commandblockguy 🇺🇸 916 61 22 Aug 2023 266th fgrosshans 🇫🇷 916 61 22 Jul 2024 266th duckyluuk 🇳🇱 916 61 15 Aug 2024 266th rucin93 🇵🇱 916 61 31 May 2025 266th katss2 916 61 17 Aug 2025 277th btnlq 915 59 6 Nov 2022 278th xnor-gate 914 63 20 Jan 2025 279th JayXon 🇺🇸 914 69 5 Apr 2023 279th Lydxn 🇨🇦 914 69 9 Apr 2023 281st MichalMarsalek 🇨🇿 914 71 5 May 2022 281st Lydxn 🇨🇦 914 71 7 May 2022 281st GrayJoKing 🇦🇺 914 71 8 May 2022 281st JayXon 🇺🇸 914 71 8 May 2022 281st Steffan153 🇫🇮 914 71 9 Mar 2023 281st Shanethegamer 🇺🇸 914 71 15 May 2023 281st MeWhenI 🇻🇦 914 71 8 Aug 2023 281st sean-niemann 🇺🇸 914 71 9 Jan 2025 289th Steffan153 🇫🇮 914 76 15 May 2023 289th primo-ppcg 🇹🇭 914 76 15 May 2023 289th Lydxn 🇨🇦 914 76 22 May 2023 289th GrayJoKing 🇦🇺 914 76 24 Aug 2023 293rd arctouch-cristiannevianna 912 85 3 Apr 2023 293rd Widgitty 912 85 1 Sep 2023 293rd tomtheisen 🇺🇸 912 85 10 Apr 2025 296th sean-niemann 🇺🇸 912 108 25 May 2024 296th GolfingSuccess 🇬🇷 912 108 25 days ago 298th primo-ppcg 🇹🇭 911 61 6 May 2022 298th sisyphus-ppcg 🇦🇺 911 61 14 Jul 2022 300th Lydxn 🇨🇦 911 70 7 May 2022 Prev 226–300 of 3,338 Next