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 749th 4hg 🇺🇸 848 55 24 Aug 2022 749th DialFrost 🇸🇬 848 55 1 Jan 2023 749th error256 848 55 4 May 2024 754th Yewzir 848 65 9 Oct 2023 754th MeWhenI 🇻🇦 848 65 10 Oct 2023 756th MeWhenI 🇻🇦 848 92 10 Oct 2022 756th Betuaredead 848 92 5 Jan 2023 758th azka1368 847 138 23 Nov 2023 758th Schmitt-Very-Cool 847 138 19 Jul 2024 760th MeWhenI 🇻🇦 846 26 25 Aug 2022 760th AlephSquirrel 846 26 6 Jan 2023 760th ovs-code 🇩🇪 846 26 5 May 2024 760th saito-ta 🇯🇵 846 26 12 Dec 2024 764th JayXon 🇺🇸 846 56 9 May 2022 765th the-zammers 846 68 2 Oct 2023 766th mtirado1 846 74 24 Dec 2022 766th Betuaredead 846 74 6 Jan 2023 766th KatieLG 🇬🇧 846 74 15 Jan 2023 766th bwat2 846 74 31 Mar 2023 766th stackotter 846 74 29 May 2023 766th ovs-code 🇩🇪 846 74 17 Apr 2024 766th madeforlosers 846 74 21 Nov 2024 773rd sean-niemann 🇺🇸 846 79 23 Oct 2024 773rd DialFrost 🇸🇬 846 79 25 Oct 2024 773rd emgordon154 846 79 27 Oct 2024 773rd stefangimmillaro 846 79 28 Oct 2024 777th Re-Adventures 🇮🇳 846 116 16 Jul 2023 777th Yewzir 846 116 7 Feb 2024 779th randolchance 844 63 8 Jan 2023 779th CatsAreFluffy 844 63 18 Feb 2023 779th amiralitaheri 844 63 23 Feb 2023 779th RuyiLi 844 63 1 Apr 2023 779th TaserTheFox 🇺🇸 844 63 25 May 2023 779th pfysches-boop 844 63 6 Aug 2023 779th mhgockel 844 63 19 Aug 2023 779th NickTheEASDude 🇺🇸 844 63 18 Jan 2024 779th 823126 844 63 14 Nov 2024 788th NewDefectus 🇮🇱 844 73 6 May 2022 788th inventshah 844 73 12 Jun 2022 788th Natanaelel 🇸🇪 844 73 15 Jun 2022 788th 5quiwyrm 844 73 19 Oct 2022 788th Herbert00709 🇵🇱 844 73 22 Dec 2023 788th LorenzoDeGaspari 844 73 27 May 2024 794th Natanaelel 🇸🇪 843 57 17 Jan 2024 794th Kacarott 🇦🇺 843 57 10 Sep 2024 796th retrohun 843 64 6 Nov 2022 796th Re-Adventures 🇮🇳 843 64 7 Nov 2022 796th stellartux 843 64 26 Dec 2023 796th bac0id 843 64 29 Jun 2024 796th snoozingnewt 🇺🇸 843 64 1 Sep 2024 801st DialFrost 🇸🇬 843 86 15 Dec 2024 802nd jared-hughes 843 100 20 Jul 2022 802nd ZakkkkAttackkkk 🇵🇭 843 100 10 Aug 2022 802nd Walter225 843 100 25 Jul 2023 805th bschorno 842 92 12 Oct 2022 805th ChrisTheisen 842 92 14 Dec 2022 805th kellantech 842 92 4 Jul 2023 805th Mezzofloat 842 92 26 Aug 2023 805th Maximizer02 842 92 1 Oct 2023 805th michelebastione 🇮🇹 842 92 22 Dec 2023 805th madeforlosers 842 92 21 Nov 2024 812th Shanethegamer 🇺🇸 842 98 26 Oct 2022 812th emgordon154 842 98 18 Feb 2025 814th Shanethegamer 🇺🇸 841 82 15 May 2023 815th lynn 841 96 11 Jul 2023 816th janAkali 🇷🇺 840 77 12 Feb 2025 817th Smetalo 840 139 25 Aug 2022 817th ToxicP1e 840 139 2 Mar 2023 819th error256 838 81 13 Sep 2024 820th Codsilla 🇨🇦 837 51 1 Jul 2022 821st raszpi 🇭🇺 837 77 1 Sep 2023 822nd eshilo-draper 835 75 6 Sep 2022 823rd ovs-code 🇩🇪 835 80 23 Oct 2024 823rd duckyluuk 🇳🇱 835 80 25 Oct 2024 823rd Shanethegamer 🇺🇸 835 80 27 Oct 2024 Prev 751–825 of 2,888 Next