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 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 Hilbert Curve 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 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 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 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 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 Hilbert Curve 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 601st ravnskjaer 🇩🇰 879 133 11 Sep 2024 602nd sisyphus-ppcg 🇦🇺 878 40 31 Jan 2023 602nd sean-niemann 🇺🇸 878 40 8 Mar 2025 604th steffan-polygolf 877 74 14 Feb 2024 605th primo-ppcg 🇹🇭 876 193 14 days ago 606th GrayJoKing 🇦🇺 875 72 31 May 2022 606th Shanethegamer 🇺🇸 875 72 1 Jun 2022 606th Steffan153 🇫🇮 875 72 10 Dec 2022 609th ovs-code 🇩🇪 875 73 22 Jul 2023 610th Shanethegamer 🇺🇸 875 81 19 Dec 2023 610th emgordon154 875 81 29 Jul 2025 612th Shanethegamer 🇺🇸 875 142 27 Mar 2025 612th DialFrost 🇸🇬 875 142 28 Mar 2025 612th emgordon154 875 142 10 Apr 2025 615th Shanethegamer 🇺🇸 874 51 15 May 2023 616th Grrisly 874 74 25 Mar 2024 617th Shanethegamer 🇺🇸 874 152 9 Sep 2023 617th emgordon154 874 152 2 Oct 2024 617th DialFrost 🇸🇬 874 152 27 Oct 2024 620th rucin93 🇵🇱 873 57 4 Aug 2024 620th dokutan 873 57 9 Aug 2024 622nd c0d3-4-F00d 🇩🇪 873 61 6 May 2022 622nd jackkav 873 61 26 Jun 2022 622nd TechNolaByte 873 61 6 Jul 2022 622nd Heathcorp 🇦🇺 873 61 17 Jul 2022 622nd C0de5mith 🇺🇸 873 61 3 Aug 2022 622nd sebipopa 🇷🇴 873 61 18 Aug 2022 622nd moikaturns 🇬🇧 873 61 25 Sep 2022 622nd FlorianCassayre 🇫🇷 873 61 27 Sep 2022 622nd Mazn3k 873 61 1 Feb 2023 622nd tvcv901 873 61 22 Mar 2023 622nd unfinishedprogram 873 61 19 Jul 2023 622nd snoozingnewt 🇺🇸 873 61 23 Sep 2023 622nd funnyboy-roks 873 61 9 May 2024 622nd bac0id 873 61 29 Jun 2024 622nd madex 🇩🇪 873 61 9 Jul 2024 622nd FortuiteMan 🇫🇷 873 61 10 Oct 2024 622nd RobertHoeh 873 61 5 Apr 2025 622nd LvLError 873 61 29 May 2025 622nd Lv0Sys 🇵🇱 873 61 30 May 2025 622nd miles-evan 873 61 23 days ago 642nd NerdyMcNerd42 873 64 26 Oct 2022 642nd tpasfieldERAU 873 64 14 Nov 2022 642nd CheeseCake628 🇳🇴 873 64 6 Jan 2023 642nd adamnielson42 🇺🇸 873 64 25 Apr 2023 642nd nathsou 🇫🇷 873 64 2 Sep 2023 642nd zwxzwxzwx21 873 64 30 Jan 2024 642nd steffan-polygolf 873 64 8 Mar 2024 642nd Jacob385 873 64 4 Apr 2024 642nd gallium-gonzollium 873 64 26 Aug 2024 651st GrayJoKing 🇦🇺 873 84 19 Jun 2022 651st primo-ppcg 🇹🇭 873 84 29 Jun 2022 653rd althryenix 873 134 25 Jul 2022 653rd MrGagnonHPS 873 134 1 Nov 2023 653rd noescareno 873 134 31 May 2025 653rd Schmitt-Very-Cool 873 134 16 Jun 2025 657th Shanethegamer 🇺🇸 872 66 4 May 2022 657th scpchicken 🇵🇼 872 66 5 May 2022 657th sisyphus-ppcg 🇦🇺 872 66 6 May 2022 657th Natanaelel 🇸🇪 872 66 15 Jun 2022 657th Z-snails 872 66 27 Feb 2023 657th Jeremy-Stafford 872 66 27 Feb 2023 657th alomiF 872 66 1 Sep 2023 657th btnlq 872 66 17 Oct 2023 665th johnnythedoggie 872 72 13 May 2022 665th kaascevich 872 72 8 Jul 2025 667th DialFrost 🇸🇬 872 73 3 Jun 2025 668th HPWiz 🇳🇿 871 49 4 May 2022 668th JayXon 🇺🇸 871 49 5 May 2022 668th Steffan153 🇫🇮 871 49 10 Dec 2022 668th ovs-code 🇩🇪 871 49 24 Oct 2023 668th sean-niemann 🇺🇸 871 49 12 Jul 2024 673rd c0d3-4-F00d 🇩🇪 871 89 5 May 2022 673rd fkantelberg 871 89 15 Jul 2023 673rd bac0id 871 89 26 Sep 2023 Prev 601–675 of 3,261 Next