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 Colors (Inverse) 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 Colors (Inverse) 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 751st azka1368 847 138 23 Nov 2023 751st Schmitt-Very-Cool 847 138 19 Jul 2024 753rd MeWhenI 🇻🇦 846 26 25 Aug 2022 753rd AlephSquirrel 846 26 6 Jan 2023 753rd ovs-code 🇩🇪 846 26 5 May 2024 753rd saito-ta 🇯🇵 846 26 12 Dec 2024 757th mossiegoat 846 66 44 hours ago 758th the-zammers 846 68 2 Oct 2023 759th mtirado1 846 74 24 Dec 2022 759th Betuaredead 846 74 6 Jan 2023 759th KatieLG 🇬🇧 846 74 15 Jan 2023 759th bwat2 846 74 31 Mar 2023 759th stackotter 846 74 29 May 2023 759th ovs-code 🇩🇪 846 74 17 Apr 2024 759th madeforlosers 846 74 21 Nov 2024 766th randolchance 845 63 8 Jan 2023 766th CatsAreFluffy 845 63 18 Feb 2023 766th amiralitaheri 845 63 23 Feb 2023 766th RuyiLi 845 63 1 Apr 2023 766th TaserTheFox 🇺🇸 845 63 25 May 2023 766th pfysches-boop 845 63 6 Aug 2023 766th mhgockel 845 63 19 Aug 2023 766th NickTheEASDude 🇺🇸 845 63 18 Jan 2024 766th 823126 845 63 14 Nov 2024 766th Palladium02 845 63 17 days ago 776th NewDefectus 🇮🇱 844 73 6 May 2022 776th inventshah 844 73 12 Jun 2022 776th Natanaelel 🇸🇪 844 73 15 Jun 2022 776th 5quiwyrm 844 73 19 Oct 2022 776th Herbert00709 🇵🇱 844 73 22 Dec 2023 776th LorenzoDeGaspari 844 73 27 May 2024 782nd bschorno 844 92 12 Oct 2022 782nd kellantech 844 92 4 Jul 2023 782nd Mezzofloat 844 92 26 Aug 2023 782nd Maximizer02 844 92 1 Oct 2023 782nd michelebastione 🇮🇹 844 92 22 Dec 2023 782nd madeforlosers 844 92 21 Nov 2024 788th jared-hughes 844 100 20 Jul 2022 788th ZakkkkAttackkkk 🇵🇭 844 100 10 Aug 2022 788th Walter225 844 100 25 Jul 2023 791st Natanaelel 🇸🇪 843 57 17 Jan 2024 791st Kacarott 🇦🇺 843 57 10 Sep 2024 793rd retrohun 843 64 6 Nov 2022 793rd Re-Adventures 🇮🇳 843 64 7 Nov 2022 793rd stellartux 843 64 26 Dec 2023 793rd bac0id 843 64 29 Jun 2024 793rd snoozingnewt 🇺🇸 843 64 1 Sep 2024 798th DialFrost 🇸🇬 843 86 15 Dec 2024 799th Shanethegamer 🇺🇸 843 98 26 Oct 2022 799th emgordon154 843 98 18 Feb 2025 801st krcs 🇵🇱 841 53 9 May 2022 801st ryanlanegit 841 53 19 Jun 2022 801st sisyphus-ppcg 🇦🇺 841 53 15 Aug 2022 804th DialFrost 🇸🇬 841 66 7 Apr 2025 805th Shanethegamer 🇺🇸 841 82 15 May 2023 806th lynn 841 96 11 Jul 2023 807th janAkali 🇷🇺 840 77 12 Feb 2025 808th Smetalo 840 139 25 Aug 2022 808th ToxicP1e 840 139 2 Mar 2023 810th error256 838 81 13 Sep 2024 811th Codsilla 🇨🇦 837 51 1 Jul 2022 812th raszpi 🇭🇺 837 77 1 Sep 2023 813th frankgraziano 836 66 20 Apr 2025 814th SirBogman 🇺🇸 836 89 4 May 2022 815th eshilo-draper 835 75 6 Sep 2022 816th Andriamanitra 🇫🇮 835 83 17 Apr 2023 816th Natanaelel 🇸🇪 835 83 8 Jul 2023 818th Smetalo 835 93 25 Aug 2022 818th malworthy 835 93 19 Aug 2024 818th 123mjb 835 93 17 Oct 2024 821st CatsAreFluffy 835 101 18 Feb 2023 821st annaproxy 835 101 9 May 2023 821st wojtekmal 835 101 15 Nov 2023 821st HumanoidCPU 835 101 6 May 2024 821st eMGeeneer 835 101 27 Jun 2024 Prev 751–825 of 3,040 Next