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 Hilbert Curve 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 Topological Sort 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 Hilbert Curve 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 Topological Sort 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 148th orthoplex 🇨🇽 931 60 9 Oct 2022 148th FlorianCassayre 🇫🇷 931 60 7 Nov 2022 148th SirBogman 🇺🇸 931 60 20 Nov 2022 148th QuincyNash 🇺🇸 931 60 1 Dec 2022 148th Steffan153 🇫🇮 931 60 19 Dec 2022 148th SirFireball3521 931 60 26 Jan 2023 148th Shanethegamer 🇺🇸 931 60 25 May 2023 148th CornerMercury 🇬🇧 931 60 19 Jun 2023 148th ndren 931 60 2 Aug 2023 148th kg583 🇺🇸 931 60 14 Aug 2023 148th Just4FunCoder 931 60 17 Feb 2024 148th HumanoidCPU 931 60 6 May 2024 148th sean-niemann 🇺🇸 931 60 10 Jul 2024 148th pardouin 🇫🇷 931 60 11 Jul 2024 148th dokutan 931 60 15 Aug 2024 148th jatloe 931 60 26 Aug 2024 148th emgordon154 931 60 6 Sep 2024 148th starfihs 931 60 12 Oct 2024 148th CaedenHarper 🇨🇦 931 60 3 Nov 2024 148th 5quiwyrm 931 60 12 Nov 2024 148th plcc0 931 60 26 Mar 2025 148th yujh-yujh 🇬🇸 931 60 28 Mar 2025 148th albanian-laundromat 931 60 12 Apr 2025 148th Mukundan314 931 60 17 Apr 2025 148th fuzzylojik-golf 🇺🇸 931 60 27 days ago 176th canissimia 🇦🇶 930 51 6 May 2022 176th Lydxn 🇨🇦 930 51 6 May 2022 176th primo-ppcg 🇹🇭 930 51 6 May 2022 176th pardouin 🇫🇷 930 51 12 Apr 2025 180th grey0ut 929 48 8 Apr 2025 181st m-tkach 🇺🇦 928 91 5 May 2022 181st 09cf 928 91 4 Oct 2023 183rd emplv 🇱🇻 927 60 5 May 2022 183rd GrayJoKing 🇦🇺 927 60 6 May 2022 183rd targrik 927 60 24 Dec 2024 183rd xsot 🇸🇬 927 60 1 May 2025 187th Lydxn 🇨🇦 926 38 4 May 2022 187th GrayJoKing 🇦🇺 926 38 5 May 2022 187th Steffan153 🇫🇮 926 38 16 Dec 2022 187th ovs-code 🇩🇪 926 38 30 Dec 2023 191st GolfingSuccess 🇬🇷 926 49 12 Aug 2024 191st Shanethegamer 🇺🇸 926 49 12 Aug 2024 191st Steffan153 🇫🇮 926 49 12 Aug 2024 191st MeWhenI 🇻🇦 926 49 13 Aug 2024 191st DialFrost 🇸🇬 926 49 13 Aug 2024 191st GrayJoKing 🇦🇺 926 49 15 Aug 2024 191st btnlq 926 49 16 Aug 2024 191st emgordon154 926 49 19 Aug 2024 191st ovs-code 🇩🇪 926 49 19 Aug 2024 191st mousetail 🇳🇱 926 49 13 Sep 2024 191st lynn 926 49 20 Dec 2024 191st weeble 926 49 20 Dec 2024 191st sean-niemann 🇺🇸 926 49 11 Jan 2025 204th ovs-code 🇩🇪 925 52 16 Jan 2024 204th kg583 🇺🇸 925 52 24 Jan 2024 204th Shanethegamer 🇺🇸 925 52 24 Mar 2024 204th pardouin 🇫🇷 925 52 11 Jul 2024 204th Steffan153 🇫🇮 925 52 17 Aug 2024 204th sean-niemann 🇺🇸 925 52 24 Jan 2025 210th MeWhenI 🇻🇦 925 68 23 Feb 2023 210th JayXon 🇺🇸 925 68 4 Mar 2025 212th GrayJoKing 🇦🇺 924 70 13 Jul 2024 212th FlyingPenguin223 924 70 4 Oct 2024 212th jipsong 🇩🇪 924 70 5 Apr 2025 215th sean-niemann 🇺🇸 923 54 6 Aug 2024 215th Steffan153 🇫🇮 923 54 6 Aug 2024 215th lukegustafson 🇺🇸 923 54 7 Aug 2024 215th pardouin 🇫🇷 923 54 8 Aug 2024 215th Lydxn 🇨🇦 923 54 9 Aug 2024 215th JayXon 🇺🇸 923 54 9 Aug 2024 221st Lydxn 🇨🇦 923 70 17 Oct 2022 221st JayXon 🇺🇸 923 70 17 Oct 2022 223rd roavin 923 84 23 Jun 2022 223rd tkr-sh 🇫🇷 923 84 20 Aug 2022 223rd Nickmiste 923 84 9 Nov 2022 Prev 151–225 of 3,333 Next