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 673rd Corxldyphik 858 62 11 Apr 2023 673rd Blockyheadman 858 62 1 Nov 2023 673rd ollyspooner 858 62 22 Nov 2023 673rd itserasmus 858 62 25 Jan 2024 673rd Jacob385 858 62 13 Mar 2024 673rd junkondo-jp 858 62 30 Jun 2024 673rd ShiraJoseph 🇺🇸 858 62 1 Mar 2025 683rd Andriamanitra 🇫🇮 858 67 26 Apr 2023 684th steffan-polygolf 858 73 23 Feb 2023 684th MWI-polygolf 858 73 6 Dec 2023 684th HumanoidCPU 858 73 7 May 2024 687th ulucs 857 35 8 May 2022 687th GrayJoKing 🇦🇺 857 35 9 May 2022 687th bstrat 857 35 6 Jun 2024 687th wh3n3v3r 🇨🇿 857 35 18 Nov 2024 691st 5quiwyrm 857 52 4 Sep 2022 691st MeWhenI 🇻🇦 857 52 28 Jan 2023 691st Feniske 🇫🇷 857 52 7 Nov 2023 691st dcgjb 857 52 29 Jan 2024 691st JPRuskin 🇬🇧 857 52 7 Apr 2025 691st IISResetMe 857 52 7 Apr 2025 697th Steffan153 🇫🇮 857 78 4 Feb 2023 698th JRaspass 🇬🇧 856 41 4 May 2022 698th SirBogman 🇺🇸 856 41 4 May 2022 698th Natanaelel 🇸🇪 856 41 4 May 2022 701st GrayJoKing 🇦🇺 856 67 8 Feb 2025 702nd jared-hughes 856 72 6 Jul 2022 702nd Steffan153 🇫🇮 856 72 3 Jan 2023 702nd MeWhenI 🇻🇦 856 72 7 May 2023 702nd ListeriaM 856 72 22 Aug 2023 702nd larcherMTT 856 72 5 Oct 2024 702nd snyderek 🇺🇸 856 72 19 Feb 2025 708th MeWhenI 🇻🇦 856 81 23 May 2023 709th KatieLG 🇬🇧 854 115 25 Sep 2022 709th emgordon154 854 115 17 Jan 2025 711th MeWhenI 🇻🇦 854 145 28 Mar 2025 712th DialFrost 🇸🇬 853 50 24 Oct 2023 713th ovs-code 🇩🇪 853 83 1 Jul 2024 714th eshilo-draper 853 91 4 Sep 2022 714th ericlangedijk 🇸🇮 853 91 23 May 2023 714th KatieLG 🇬🇧 853 91 30 Apr 2024 714th Mikey-Beep 🇬🇧 853 91 3 Sep 2024 718th eshilo-draper 853 137 4 Sep 2022 719th ovs-code 🇩🇪 852 85 11 Dec 2023 720th yeminghan2021 852 99 3 Feb 2025 721st Shanethegamer 🇺🇸 851 83 4 May 2022 722nd 386asm 🇺🇸 851 86 9 Apr 2023 723rd Frowny 850 38 5 May 2022 723rd stackofbears 850 38 14 Mar 2025 725th o0lit3 🇺🇸 850 54 22 Jun 2023 725th Natanaelel 🇸🇪 850 54 10 Feb 2025 727th typeswitch-dev 🇵🇹 850 75 22 Jul 2023 728th frosster 850 76 12 May 2023 728th kyleclaassen 850 76 20 May 2023 728th RockOfStone 850 76 17 Mar 2024 728th NickTheEASDude 🇺🇸 850 76 7 May 2024 728th Antibrain0 850 76 8 Nov 2024 733rd Yewzir 🇧🇪 849 65 9 Oct 2023 733rd MeWhenI 🇻🇦 849 65 10 Oct 2023 735th MeWhenI 🇻🇦 849 92 10 Oct 2022 735th Betuaredead 849 92 5 Jan 2023 737th Shanethegamer 🇺🇸 849 99 27 Apr 2023 738th SirBogman 🇺🇸 848 55 5 May 2022 738th xiBread 🇺🇸 848 55 6 May 2022 738th 4hg 🇺🇸 848 55 24 Aug 2022 738th DialFrost 🇸🇬 848 55 1 Jan 2023 738th error256 848 55 4 May 2024 743rd JayXon 🇺🇸 847 56 9 May 2022 744th sean-niemann 🇺🇸 847 79 23 Oct 2024 744th DialFrost 🇸🇬 847 79 25 Oct 2024 744th emgordon154 847 79 27 Oct 2024 744th stefangimmillaro 847 79 28 Oct 2024 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 3,025 Next