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 675th GreenBeansAgainstVeganism 858 62 13 Jan 2023 675th arctouch-cristiannevianna 858 62 3 Apr 2023 675th Corxldyphik 858 62 11 Apr 2023 675th Blockyheadman 858 62 1 Nov 2023 675th ollyspooner 858 62 22 Nov 2023 675th itserasmus 858 62 25 Jan 2024 675th Jacob385 858 62 13 Mar 2024 675th junkondo-jp 858 62 30 Jun 2024 675th ShiraJoseph 🇺🇸 858 62 1 Mar 2025 675th fuzzylojik-golf 🇺🇸 858 62 32 mins ago 686th Andriamanitra 🇫🇮 858 67 26 Apr 2023 687th steffan-polygolf 858 73 23 Feb 2023 687th MWI-polygolf 858 73 6 Dec 2023 687th HumanoidCPU 858 73 7 May 2024 690th Steffan153 🇫🇮 858 78 4 Feb 2023 691st ulucs 857 35 8 May 2022 691st GrayJoKing 🇦🇺 857 35 9 May 2022 691st bstrat 857 35 6 Jun 2024 691st wh3n3v3r 🇨🇿 857 35 18 Nov 2024 695th 5quiwyrm 857 52 4 Sep 2022 695th MeWhenI 🇻🇦 857 52 28 Jan 2023 695th Feniske 🇫🇷 857 52 7 Nov 2023 695th dcgjb 857 52 29 Jan 2024 695th JPRuskin 🇬🇧 857 52 7 Apr 2025 695th IISResetMe 857 52 7 Apr 2025 701st JRaspass 🇬🇧 856 41 4 May 2022 701st SirBogman 🇺🇸 856 41 4 May 2022 701st Natanaelel 🇸🇪 856 41 4 May 2022 704th GrayJoKing 🇦🇺 856 67 8 Feb 2025 705th jared-hughes 856 72 6 Jul 2022 705th Steffan153 🇫🇮 856 72 3 Jan 2023 705th MeWhenI 🇻🇦 856 72 7 May 2023 705th ListeriaM 856 72 22 Aug 2023 705th larcherMTT 856 72 5 Oct 2024 705th snyderek 🇺🇸 856 72 19 Feb 2025 711th MeWhenI 🇻🇦 856 81 23 May 2023 712th KatieLG 🇬🇧 854 115 25 Sep 2022 712th emgordon154 854 115 17 Jan 2025 714th MeWhenI 🇻🇦 854 145 28 Mar 2025 715th DialFrost 🇸🇬 853 50 24 Oct 2023 716th ovs-code 🇩🇪 853 83 1 Jul 2024 717th eshilo-draper 853 91 4 Sep 2022 717th ericlangedijk 🇸🇮 853 91 23 May 2023 717th KatieLG 🇬🇧 853 91 30 Apr 2024 717th Mikey-Beep 🇬🇧 853 91 3 Sep 2024 721st eshilo-draper 853 137 4 Sep 2022 722nd ovs-code 🇩🇪 852 85 11 Dec 2023 723rd yeminghan2021 852 99 3 Feb 2025 724th Shanethegamer 🇺🇸 851 83 4 May 2022 725th 386asm 🇺🇸 851 86 9 Apr 2023 726th Frowny 850 38 5 May 2022 726th stackofbears 850 38 14 Mar 2025 728th o0lit3 🇺🇸 850 54 22 Jun 2023 728th Natanaelel 🇸🇪 850 54 10 Feb 2025 730th typeswitch-dev 🇵🇹 850 75 22 Jul 2023 731st frosster 850 76 12 May 2023 731st kyleclaassen 850 76 20 May 2023 731st RockOfStone 850 76 17 Mar 2024 731st NickTheEASDude 🇺🇸 850 76 7 May 2024 731st Antibrain0 850 76 8 Nov 2024 736th MeWhenI 🇻🇦 850 92 10 Oct 2022 736th Betuaredead 850 92 5 Jan 2023 736th emgordon154 850 92 30 hours ago 739th Yewzir 🇧🇪 849 65 9 Oct 2023 739th MeWhenI 🇻🇦 849 65 10 Oct 2023 741st Shanethegamer 🇺🇸 849 99 27 Apr 2023 742nd SirBogman 🇺🇸 848 55 5 May 2022 742nd xiBread 🇺🇸 848 55 6 May 2022 742nd 4hg 🇺🇸 848 55 24 Aug 2022 742nd DialFrost 🇸🇬 848 55 1 Jan 2023 742nd error256 848 55 4 May 2024 747th JayXon 🇺🇸 847 56 9 May 2022 748th Re-Adventures 🇮🇳 847 116 16 Jul 2023 748th Yewzir 🇧🇪 847 116 7 Feb 2024 750th azka1368 847 138 23 Nov 2023 Prev 676–750 of 3,036 Next