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 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 Star Wars GPT 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 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 Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 826th Andriamanitra 🇫🇮 835 83 17 Apr 2023 826th Natanaelel 🇸🇪 835 83 8 Jul 2023 828th SirBogman 🇺🇸 835 89 4 May 2022 829th scpchicken 🇵🇼 834 55 4 May 2022 829th SirBogman 🇺🇸 834 55 5 May 2022 829th Shanethegamer 🇺🇸 834 55 19 May 2023 829th DialFrost 🇸🇬 834 55 14 Feb 2025 833rd Shanethegamer 🇺🇸 834 76 4 Sep 2023 833rd sean-niemann 🇺🇸 834 76 8 Oct 2024 835th CatsAreFluffy 834 101 18 Feb 2023 835th annaproxy 834 101 9 May 2023 835th wojtekmal 834 101 15 Nov 2023 835th HumanoidCPU 834 101 6 May 2024 835th eMGeeneer 834 101 27 Jun 2024 835th bac0id 834 101 29 Jun 2024 841st SirBogman 🇺🇸 833 36 5 May 2022 841st HPWiz 🇳🇿 833 36 7 May 2022 841st Natanaelel 🇸🇪 833 36 15 Jun 2022 841st Steffan153 🇫🇮 833 36 18 Jan 2023 841st codereport 🇨🇦 833 36 1 Jun 2024 841st GolfinK 833 36 21 Nov 2024 841st lifthrasiir 🇰🇷 833 36 1 Dec 2024 841st GolfingSuccess 🇬🇷 833 36 14 days ago 849th ChiefChippy2 833 56 4 May 2022 849th aksyristos 833 56 29 Jan 2023 849th anter69 🇭🇺 833 56 12 Feb 2024 849th 3dm4n 🇫🇮 833 56 11 Mar 2024 849th lgrandco 833 56 9 Oct 2024 849th AbrahamJLR 833 56 28 Nov 2024 849th tatzyr 🇯🇵 833 56 10 Dec 2024 856th moustave 833 67 7 Nov 2024 857th inverseLorentz 🇦🇺 833 69 3 Jun 2024 858th CLOStrophobic 🇮🇹 833 89 14 Feb 2025 859th Steffan153 🇫🇮 833 97 18 Jan 2023 860th RyanMHsiao 833 159 24 Sep 2024 861st Steffan153 🇫🇮 832 55 21 Dec 2022 862nd Alex-x90 🇺🇸 832 74 4 Dec 2022 862nd undersquire 832 74 24 Jun 2023 862nd rdmsr 832 74 24 Jun 2023 862nd Bmrl7 832 74 9 Jul 2023 862nd Vinterion 832 74 6 Nov 2023 862nd namelessiw 832 74 28 Dec 2023 862nd Jonatan6 🇩🇰 832 74 15 Mar 2024 862nd Mandrzejy 🇵🇱 832 74 12 Apr 2024 862nd kaurakeksi 🇫🇮 832 74 29 Dec 2024 871st dokutan 832 88 9 Jun 2024 872nd p-vf 🇨🇭 832 93 24 Jun 2022 872nd Smetalo 832 93 25 Aug 2022 872nd malworthy 832 93 19 Aug 2024 872nd 123mjb 832 93 17 Oct 2024 876th MeWhenI 🇻🇦 832 101 5 May 2022 877th Shanethegamer 🇺🇸 831 57 15 Dec 2022 877th anter69 🇭🇺 831 57 23 Feb 2023 877th stefangimmillaro 831 57 6 May 2023 880th elisherer 🇮🇱 831 64 5 Jun 2022 880th Ashikpaul 🇮🇳 831 64 29 Jul 2022 880th LukeBridges 🇬🇧 831 64 26 Oct 2022 880th florton 831 64 18 Jan 2023 880th DayDun 🇸🇪 831 64 24 Jan 2023 880th lyphyser 831 64 3 Jun 2023 880th Davr1 🇨🇿 831 64 14 Oct 2023 880th stellartux 831 64 26 Dec 2023 880th goodwyna21 831 64 12 Nov 2024 880th xShadowBlade 831 64 26 Dec 2024 890th Yewzir 831 69 24 Dec 2024 891st nwellnhof 🇩🇪 831 117 16 Nov 2022 892nd ovs-code 🇩🇪 830 60 3 Aug 2024 892nd GrayJoKing 🇦🇺 830 60 24 Oct 2024 892nd Shanethegamer 🇺🇸 830 60 19 Dec 2024 895th alphafalfa 830 65 23 Aug 2024 896th Natanaelel 🇸🇪 829 39 10 Feb 2025 897th sean-niemann 🇺🇸 829 67 5 May 2022 897th pschmid0 🇺🇸 829 67 5 Aug 2022 897th arobson13 🇨🇦 829 67 11 Apr 2023 897th janbehrens 🇩🇪 829 67 17 May 2023 Prev 826–900 of 2,888 Next