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 748th saito-ta 🇯🇵 846 26 12 Dec 2024 752nd the-zammers 846 68 2 Oct 2023 753rd mtirado1 846 74 24 Dec 2022 753rd Betuaredead 846 74 6 Jan 2023 753rd KatieLG 🇬🇧 846 74 15 Jan 2023 753rd bwat2 846 74 31 Mar 2023 753rd stackotter 846 74 29 May 2023 753rd ovs-code 🇩🇪 846 74 17 Apr 2024 753rd madeforlosers 846 74 21 Nov 2024 760th Re-Adventures 🇮🇳 846 116 16 Jul 2023 760th Yewzir 🇧🇪 846 116 7 Feb 2024 762nd randolchance 844 63 8 Jan 2023 762nd CatsAreFluffy 844 63 18 Feb 2023 762nd amiralitaheri 844 63 23 Feb 2023 762nd RuyiLi 844 63 1 Apr 2023 762nd TaserTheFox 🇺🇸 844 63 25 May 2023 762nd pfysches-boop 844 63 6 Aug 2023 762nd mhgockel 844 63 19 Aug 2023 762nd NickTheEASDude 🇺🇸 844 63 18 Jan 2024 762nd 823126 844 63 14 Nov 2024 771st NewDefectus 🇮🇱 844 73 6 May 2022 771st inventshah 844 73 12 Jun 2022 771st Natanaelel 🇸🇪 844 73 15 Jun 2022 771st 5quiwyrm 844 73 19 Oct 2022 771st Herbert00709 🇵🇱 844 73 22 Dec 2023 771st LorenzoDeGaspari 844 73 27 May 2024 777th bschorno 844 92 12 Oct 2022 777th kellantech 844 92 4 Jul 2023 777th Mezzofloat 844 92 26 Aug 2023 777th Maximizer02 844 92 1 Oct 2023 777th michelebastione 🇮🇹 844 92 22 Dec 2023 777th madeforlosers 844 92 21 Nov 2024 783rd Natanaelel 🇸🇪 843 57 17 Jan 2024 783rd Kacarott 🇦🇺 843 57 10 Sep 2024 785th retrohun 843 64 6 Nov 2022 785th Re-Adventures 🇮🇳 843 64 7 Nov 2022 785th stellartux 843 64 26 Dec 2023 785th bac0id 843 64 29 Jun 2024 785th snoozingnewt 🇺🇸 843 64 1 Sep 2024 790th DialFrost 🇸🇬 843 86 15 Dec 2024 791st Shanethegamer 🇺🇸 843 98 26 Oct 2022 791st emgordon154 843 98 18 Feb 2025 793rd jared-hughes 843 100 20 Jul 2022 793rd ZakkkkAttackkkk 🇵🇭 843 100 10 Aug 2022 793rd Walter225 843 100 25 Jul 2023 796th krcs 🇵🇱 841 53 9 May 2022 796th ryanlanegit 841 53 19 Jun 2022 796th sisyphus-ppcg 🇦🇺 841 53 15 Aug 2022 799th DialFrost 🇸🇬 841 66 27 days ago 800th Shanethegamer 🇺🇸 841 82 15 May 2023 801st lynn 841 96 11 Jul 2023 802nd janAkali 🇷🇺 840 77 12 Feb 2025 803rd Smetalo 840 139 25 Aug 2022 803rd ToxicP1e 840 139 2 Mar 2023 805th error256 838 81 13 Sep 2024 806th Codsilla 🇨🇦 837 51 1 Jul 2022 807th raszpi 🇭🇺 837 77 1 Sep 2023 808th ovs-code 🇩🇪 837 80 23 Oct 2024 808th duckyluuk 🇳🇱 837 80 25 Oct 2024 808th Shanethegamer 🇺🇸 837 80 27 Oct 2024 811th frankgraziano 836 66 14 days ago 812th SirBogman 🇺🇸 836 89 4 May 2022 813th eshilo-draper 835 75 6 Sep 2022 814th Andriamanitra 🇫🇮 835 83 17 Apr 2023 814th Natanaelel 🇸🇪 835 83 8 Jul 2023 816th CatsAreFluffy 835 101 18 Feb 2023 816th annaproxy 835 101 9 May 2023 816th wojtekmal 835 101 15 Nov 2023 816th HumanoidCPU 835 101 6 May 2024 816th eMGeeneer 835 101 27 Jun 2024 816th bac0id 835 101 29 Jun 2024 822nd SirBogman 🇺🇸 834 36 5 May 2022 822nd HPWiz 🇳🇿 834 36 7 May 2022 822nd Natanaelel 🇸🇪 834 36 15 Jun 2022 822nd Steffan153 🇫🇮 834 36 18 Jan 2023 Prev 751–825 of 3,006 Next