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 Mandelbrot 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 Scrambled Sort 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort 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 Vala 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 Vala 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 Mandelbrot 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 Scrambled Sort 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 826th the-zammers 846 68 2 Oct 2023 827th randolchance 845 63 8 Jan 2023 827th CatsAreFluffy 845 63 18 Feb 2023 827th amiralitaheri 845 63 23 Feb 2023 827th RuyiLi 845 63 1 Apr 2023 827th TaserTheFox 🇺🇸 845 63 25 May 2023 827th pfysches-boop 845 63 6 Aug 2023 827th mhgockel 845 63 19 Aug 2023 827th NickTheEASDude 🇺🇸 845 63 18 Jan 2024 827th 823126 845 63 14 Nov 2024 827th Palladium02 845 63 12 May 2025 827th 4very 845 63 10 Jun 2025 827th gigaprofisi 🇺🇸 845 63 17 Jun 2025 827th CaedenHarper 🇨🇦 845 63 17 days ago 840th NewDefectus 🇮🇱 845 73 6 May 2022 840th inventshah 845 73 12 Jun 2022 840th Natanaelel 🇸🇪 845 73 15 Jun 2022 840th Herbert00709 🇵🇱 845 73 22 Dec 2023 840th LorenzoDeGaspari 845 73 27 May 2024 840th Bpc-CPU 845 73 4 days ago 846th Shanethegamer 🇺🇸 844 98 26 Oct 2022 846th emgordon154 844 98 18 Feb 2025 848th jared-hughes 844 100 20 Jul 2022 848th ZakkkkAttackkkk 🇵🇭 844 100 10 Aug 2022 848th Walter225 844 100 25 Jul 2023 851st Natanaelel 🇸🇪 843 57 17 Jan 2024 851st Kacarott 🇦🇺 843 57 10 Sep 2024 853rd retrohun 843 64 6 Nov 2022 853rd Re-Adventures 🇮🇳 843 64 7 Nov 2022 853rd stellartux 843 64 26 Dec 2023 853rd bac0id 843 64 29 Jun 2024 853rd snoozingnewt 🇺🇸 843 64 1 Sep 2024 858th DialFrost 🇸🇬 843 86 15 Dec 2024 859th bschorno 843 92 12 Oct 2022 859th ChrisTheisen 843 92 14 Dec 2022 859th kellantech 843 92 4 Jul 2023 859th Mezzofloat 843 92 26 Aug 2023 859th Maximizer02 843 92 1 Oct 2023 859th michelebastione 🇮🇹 843 92 22 Dec 2023 859th madeforlosers 843 92 21 Nov 2024 866th janAkali 🇷🇺 842 77 12 Feb 2025 867th krcs 🇵🇱 841 53 9 May 2022 867th ryanlanegit 841 53 19 Jun 2022 867th sisyphus-ppcg 🇦🇺 841 53 15 Aug 2022 870th DialFrost 🇸🇬 841 66 7 Apr 2025 871st Shanethegamer 🇺🇸 841 82 15 May 2023 872nd lynn 841 96 11 Jul 2023 873rd Smetalo 841 139 25 Aug 2022 873rd ToxicP1e 841 139 2 Mar 2023 875th raszpi 🇭🇺 839 77 1 Sep 2023 876th error256 838 81 13 Sep 2024 877th Codsilla 🇨🇦 837 51 1 Jul 2022 878th frankgraziano 837 66 20 Apr 2025 879th eshilo-draper 837 75 6 Sep 2022 880th sean-niemann 🇺🇸 837 76 8 Oct 2024 881st SirBogman 🇺🇸 836 89 4 May 2022 882nd CatsAreFluffy 836 101 18 Feb 2023 882nd annaproxy 836 101 9 May 2023 882nd wojtekmal 836 101 15 Nov 2023 882nd HumanoidCPU 836 101 6 May 2024 882nd eMGeeneer 836 101 27 Jun 2024 882nd bac0id 836 101 29 Jun 2024 888th Andriamanitra 🇫🇮 835 83 17 Apr 2023 888th Natanaelel 🇸🇪 835 83 8 Jul 2023 890th MeWhenI 🇻🇦 835 207 21 Apr 2025 891st SirBogman 🇺🇸 834 36 5 May 2022 891st HPWiz 🇳🇿 834 36 7 May 2022 891st Natanaelel 🇸🇪 834 36 15 Jun 2022 891st Steffan153 🇫🇮 834 36 18 Jan 2023 891st codereport 🇨🇦 834 36 1 Jun 2024 891st GolfinK 834 36 21 Nov 2024 891st lifthrasiir 🇰🇷 834 36 1 Dec 2024 891st GolfingSuccess 🇬🇷 834 36 20 Mar 2025 899th scpchicken 🇵🇼 834 55 4 May 2022 899th SirBogman 🇺🇸 834 55 5 May 2022 Prev 826–900 of 3,171 Next