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 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 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 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 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 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 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 Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 595th kkoenig 880 96 21 Dec 2023 595th BlankSpruce 880 96 20 Aug 2024 595th fuzzylojik-golf 🇺🇸 880 96 14 Jun 2025 604th ravnskjaer 🇩🇰 880 133 11 Sep 2024 605th ovs-code 🇩🇪 880 151 9 Sep 2023 606th sisyphus-ppcg 🇦🇺 879 40 31 Jan 2023 606th sean-niemann 🇺🇸 879 40 8 Mar 2025 608th ovs-code 🇩🇪 879 89 24 Jul 2024 608th jipsong 🇩🇪 879 89 7 Apr 2025 610th ovs-code 🇩🇪 878 73 22 Jul 2023 611th steffan-polygolf 877 74 14 Feb 2024 612th mousetail 🇳🇱 876 40 15 days ago 613th DialFrost 🇸🇬 876 56 11 days ago 613th albanian-laundromat 876 56 11 hours ago 615th GrayJoKing 🇦🇺 876 72 31 May 2022 615th Shanethegamer 🇺🇸 876 72 1 Jun 2022 615th Steffan153 🇫🇮 876 72 10 Dec 2022 618th primo-ppcg 🇹🇭 876 193 14 Aug 2025 619th Shanethegamer 🇺🇸 875 81 19 Dec 2023 619th emgordon154 875 81 29 Jul 2025 621st Shanethegamer 🇺🇸 875 142 27 Mar 2025 621st DialFrost 🇸🇬 875 142 28 Mar 2025 621st emgordon154 875 142 10 Apr 2025 624th Shanethegamer 🇺🇸 874 51 15 May 2023 625th Grrisly 874 74 25 Mar 2024 626th GrayJoKing 🇦🇺 874 84 19 Jun 2022 626th primo-ppcg 🇹🇭 874 84 29 Jun 2022 628th Shanethegamer 🇺🇸 874 152 9 Sep 2023 628th emgordon154 874 152 2 Oct 2024 628th DialFrost 🇸🇬 874 152 27 Oct 2024 631st rucin93 🇵🇱 873 57 4 Aug 2024 631st dokutan 873 57 9 Aug 2024 633rd c0d3-4-F00d 🇩🇪 873 61 6 May 2022 633rd jackkav 873 61 26 Jun 2022 633rd TechNolaByte 873 61 6 Jul 2022 633rd Heathcorp 🇦🇺 873 61 17 Jul 2022 633rd C0de5mith 🇺🇸 873 61 3 Aug 2022 633rd sebipopa 🇷🇴 873 61 18 Aug 2022 633rd moikaturns 🇬🇧 873 61 25 Sep 2022 633rd FlorianCassayre 🇫🇷 873 61 27 Sep 2022 633rd Mazn3k 873 61 1 Feb 2023 633rd tvcv901 873 61 22 Mar 2023 633rd unfinishedprogram 873 61 19 Jul 2023 633rd snoozingnewt 🇺🇸 873 61 23 Sep 2023 633rd funnyboy-roks 873 61 9 May 2024 633rd bac0id 873 61 29 Jun 2024 633rd madex 🇩🇪 873 61 9 Jul 2024 633rd FortuiteMan 🇫🇷 873 61 10 Oct 2024 633rd RobertHoeh 873 61 5 Apr 2025 633rd LvLError 873 61 29 May 2025 633rd Lv0Sys 🇵🇱 873 61 30 May 2025 633rd miles-evan 873 61 5 Aug 2025 653rd NerdyMcNerd42 873 64 26 Oct 2022 653rd tpasfieldERAU 873 64 14 Nov 2022 653rd CheeseCake628 🇳🇴 873 64 6 Jan 2023 653rd adamnielson42 🇺🇸 873 64 25 Apr 2023 653rd nathsou 🇫🇷 873 64 2 Sep 2023 653rd zwxzwxzwx21 873 64 30 Jan 2024 653rd steffan-polygolf 873 64 8 Mar 2024 653rd Jacob385 873 64 4 Apr 2024 653rd gallium-gonzollium 873 64 26 Aug 2024 662nd johnnythedoggie 873 72 13 May 2022 662nd kaascevich 873 72 8 Jul 2025 664th althryenix 873 134 25 Jul 2022 664th MrGagnonHPS 873 134 1 Nov 2023 664th noescareno 873 134 31 May 2025 664th Schmitt-Very-Cool 873 134 16 Jun 2025 664th kmathis22 873 134 12 days ago 669th Shanethegamer 🇺🇸 872 66 4 May 2022 669th scpchicken 🇵🇼 872 66 5 May 2022 669th sisyphus-ppcg 🇦🇺 872 66 6 May 2022 669th Natanaelel 🇸🇪 872 66 15 Jun 2022 669th Z-snails 872 66 27 Feb 2023 669th Jeremy-Stafford 872 66 27 Feb 2023 669th alomiF 872 66 1 Sep 2023 Prev 601–675 of 3,312 Next