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 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 Topological Sort 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 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 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 599th Steffan153 🇫🇮 875 72 10 Dec 2022 602nd Shanethegamer 🇺🇸 875 142 27 Mar 2025 602nd DialFrost 🇸🇬 875 142 28 Mar 2025 602nd emgordon154 875 142 10 Apr 2025 605th primo-ppcg 🇹🇭 875 198 17 days ago 606th Shanethegamer 🇺🇸 874 51 15 May 2023 607th rucin93 🇵🇱 873 57 4 Aug 2024 607th dokutan 873 57 9 Aug 2024 609th c0d3-4-F00d 🇩🇪 873 61 6 May 2022 609th jackkav 873 61 26 Jun 2022 609th TechNolaByte 873 61 6 Jul 2022 609th Heathcorp 🇦🇺 873 61 17 Jul 2022 609th C0de5mith 🇺🇸 873 61 3 Aug 2022 609th sebipopa 🇷🇴 873 61 18 Aug 2022 609th moikaturns 🇬🇧 873 61 25 Sep 2022 609th FlorianCassayre 🇫🇷 873 61 27 Sep 2022 609th Mazn3k 873 61 1 Feb 2023 609th tvcv901 873 61 22 Mar 2023 609th unfinishedprogram 873 61 19 Jul 2023 609th snoozingnewt 🇺🇸 873 61 23 Sep 2023 609th funnyboy-roks 873 61 9 May 2024 609th bac0id 873 61 29 Jun 2024 609th madex 🇩🇪 873 61 9 Jul 2024 609th cdesodt 873 61 10 Oct 2024 609th RobertHoeh 873 61 5 Apr 2025 609th kirjavascript 873 61 4 May 2025 609th LvLError 873 61 29 May 2025 609th Lv0Sys 🇵🇱 873 61 30 May 2025 629th NerdyMcNerd42 873 64 26 Oct 2022 629th tpasfieldERAU 873 64 14 Nov 2022 629th CheeseCake628 🇳🇴 873 64 6 Jan 2023 629th adamnielson42 🇺🇸 873 64 25 Apr 2023 629th nathsou 🇫🇷 873 64 2 Sep 2023 629th zwxzwxzwx21 873 64 30 Jan 2024 629th steffan-polygolf 873 64 8 Mar 2024 629th Jacob385 873 64 4 Apr 2024 629th gallium-gonzollium 873 64 26 Aug 2024 638th ovs-code 🇩🇪 873 73 22 Jul 2023 639th Grrisly 873 74 25 Mar 2024 640th GrayJoKing 🇦🇺 873 84 19 Jun 2022 640th primo-ppcg 🇹🇭 873 84 29 Jun 2022 642nd althryenix 873 134 25 Jul 2022 642nd MrGagnonHPS 873 134 1 Nov 2023 642nd noescareno 873 134 31 May 2025 642nd Schmitt-Very-Cool 873 134 16 Jun 2025 646th Shanethegamer 🇺🇸 873 152 9 Sep 2023 646th emgordon154 873 152 2 Oct 2024 646th DialFrost 🇸🇬 873 152 27 Oct 2024 649th HPWiz 🇳🇿 871 49 4 May 2022 649th JayXon 🇺🇸 871 49 5 May 2022 649th Steffan153 🇫🇮 871 49 10 Dec 2022 649th ovs-code 🇩🇪 871 49 24 Oct 2023 649th sean-niemann 🇺🇸 871 49 12 Jul 2024 654th Shanethegamer 🇺🇸 871 66 4 May 2022 654th scpchicken 🇵🇼 871 66 5 May 2022 654th sisyphus-ppcg 🇦🇺 871 66 6 May 2022 654th Natanaelel 🇸🇪 871 66 15 Jun 2022 654th Z-snails 871 66 27 Feb 2023 654th Jeremy-Stafford 871 66 27 Feb 2023 654th alomiF 871 66 1 Sep 2023 654th btnlq 871 66 17 Oct 2023 662nd johnnythedoggie 871 72 13 May 2022 662nd kaascevich 871 72 21 days ago 664th DialFrost 🇸🇬 871 73 3 Jun 2025 665th c0d3-4-F00d 🇩🇪 871 89 5 May 2022 665th fkantelberg 871 89 15 Jul 2023 665th bac0id 871 89 26 Sep 2023 665th TRexOnGit 871 89 16 Feb 2024 665th arcpolaris 871 89 18 Nov 2024 670th dokutan 870 62 28 Apr 2025 671st inventshah 870 97 6 May 2022 671st roupiq 🇵🇱 870 97 22 Nov 2023 673rd janbehrens 🇩🇪 869 90 21 Apr 2023 673rd Yewzir 🇧🇪 869 90 22 Apr 2023 673rd DialFrost 🇸🇬 869 90 6 Nov 2023 Prev 601–675 of 3,194 Next