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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization 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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 901st GolfingSuccess 🇬🇷 826 150 18 Jan 2025 901st ovs-code 🇩🇪 826 150 27 Mar 2025 903rd TaserTheFox 🇺🇸 825 54 31 May 2023 904th kimbo 🇺🇸 825 119 28 Dec 2022 905th MeWhenI 🇻🇦 824 90 13 Feb 2025 906th RobertHoeh 822 70 28 Jan 2024 906th jamiloBBKing 822 70 31 Jan 2025 908th AlephSquirrel 822 75 12 Jan 2023 908th Yewzir 🇧🇪 822 75 22 Apr 2023 908th Shanethegamer 🇺🇸 822 75 15 May 2023 908th imma-Spring 822 75 15 Nov 2023 908th noahgitsham 822 75 20 Jun 2024 908th not-a-pokemon 822 75 21 days ago 914th Shanethegamer 🇺🇸 821 52 9 Mar 2023 915th Bubbler-4 821 68 15 Nov 2022 915th neel11235813 821 68 31 Dec 2022 915th Rubiksmath 821 68 14 Aug 2023 915th SB-945 821 68 7 Feb 2024 919th DialFrost 🇸🇬 821 86 10 Mar 2025 920th JRaspass 🇬🇧 819 56 4 May 2022 920th ChiefChippy2 819 56 4 May 2022 922nd dokutan 819 79 20 Mar 2025 923rd Widgitty 819 103 1 Sep 2023 924th Irratix 🇳🇱 818 57 29 Jun 2022 925th MeWhenI 🇻🇦 818 58 4 May 2022 925th emgordon154 818 58 26 Jul 2024 927th wansacis 🇩🇪 818 65 13 May 2022 927th krcs 🇵🇱 818 65 24 Nov 2022 927th ejini6969 818 65 1 Apr 2023 927th InspectorBoat 818 65 25 Oct 2023 931st Natanaelel 🇸🇪 818 79 2 Jun 2022 931st stellartux 818 79 1 Jan 2024 931st dokutan 818 79 27 Apr 2024 931st Mabeloid 🇳🇴 818 79 22 Sep 2024 935th Shanethegamer 🇺🇸 818 83 14 Dec 2024 936th ian-h-chamberlain 🇺🇸 818 101 7 Jul 2022 936th r-brinke 🇳🇱 818 101 24 Feb 2023 936th MeWhenI 🇻🇦 818 101 29 May 2023 936th HumanoidCPU 818 101 7 May 2024 940th ibeucaly 818 120 20 Sep 2022 940th ComputerKWasTaken 🇺🇸 818 120 20 Jan 2025 942nd ovs-code 🇩🇪 817 66 29 Oct 2022 943rd stefangimmillaro 817 68 2 Oct 2022 943rd Shanethegamer 🇺🇸 817 68 17 May 2023 945th nstearns96 🇬🇧 816 75 12 Dec 2022 945th snoozingnewt 🇺🇸 816 75 20 Oct 2023 945th dokutan 816 75 28 Jul 2024 948th KrausRaus 🇺🇸 816 79 10 Nov 2022 948th Yewzir 🇧🇪 816 79 28 Mar 2024 948th dokutan 816 79 9 Aug 2024 951st MeWhenI 🇻🇦 816 82 24 Oct 2024 952nd varhammer 🇷🇺 816 103 13 Dec 2023 953rd sisyphus-ppcg 🇦🇺 815 27 22 Jul 2022 953rd GrayJoKing 🇦🇺 815 27 31 Jul 2022 953rd clockworknazo 815 27 17 Aug 2022 953rd JayXon 🇺🇸 815 27 23 Oct 2022 953rd Steffan153 🇫🇮 815 27 15 Nov 2022 953rd betaveros 815 27 4 Jan 2023 953rd neel11235813 815 27 16 Mar 2023 953rd orthoplex 🇨🇽 815 27 5 Oct 2023 953rd lynn 815 27 16 Oct 2023 953rd emgordon154 815 27 13 Sep 2024 963rd Shanethegamer 🇺🇸 815 91 13 Feb 2025 963rd DialFrost 🇸🇬 815 91 14 Feb 2025 965th m-tkach 🇺🇦 814 59 21 Jan 2024 965th emgordon154 814 59 22 Oct 2024 965th GolfingSuccess 🇬🇷 814 59 20 Jan 2025 968th msbranicky 813 163 8 Jan 2024 968th Lorenzo-St 813 163 12 Jul 2024 970th Natanaelel 🇸🇪 812 87 15 Jun 2022 971st Yewzir 🇧🇪 811 37 10 Dec 2023 971st DialFrost 🇸🇬 811 37 7 Feb 2024 971st emgordon154 811 37 18 Sep 2024 971st copy 811 37 5 Apr 2025 975th ZakkkkAttackkkk 🇵🇭 811 76 23 Jul 2022 Prev 901–975 of 3,006 Next