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 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 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 671st ollyspooner 858 62 22 Nov 2023 671st itserasmus 858 62 25 Jan 2024 671st Jacob385 858 62 13 Mar 2024 671st junkondo-jp 858 62 30 Jun 2024 671st ShiraJoseph 🇺🇸 858 62 1 Mar 2025 681st Andriamanitra 🇫🇮 858 67 26 Apr 2023 682nd steffan-polygolf 858 73 23 Feb 2023 682nd MWI-polygolf 858 73 6 Dec 2023 682nd HumanoidCPU 858 73 7 May 2024 685th ulucs 857 35 8 May 2022 685th GrayJoKing 🇦🇺 857 35 9 May 2022 685th bstrat 857 35 6 Jun 2024 685th wh3n3v3r 🇨🇿 857 35 18 Nov 2024 689th 5quiwyrm 857 52 4 Sep 2022 689th MeWhenI 🇻🇦 857 52 28 Jan 2023 689th Feniske 🇫🇷 857 52 7 Nov 2023 689th dcgjb 857 52 29 Jan 2024 689th JPRuskin 🇬🇧 857 52 7 Apr 2025 689th IISResetMe 857 52 7 Apr 2025 695th Steffan153 🇫🇮 857 78 4 Feb 2023 696th JRaspass 🇬🇧 856 41 4 May 2022 696th SirBogman 🇺🇸 856 41 4 May 2022 696th Natanaelel 🇸🇪 856 41 4 May 2022 699th GrayJoKing 🇦🇺 856 67 8 Feb 2025 700th jared-hughes 856 72 6 Jul 2022 700th Steffan153 🇫🇮 856 72 3 Jan 2023 700th MeWhenI 🇻🇦 856 72 7 May 2023 700th ListeriaM 856 72 22 Aug 2023 700th larcherMTT 856 72 5 Oct 2024 700th snyderek 🇺🇸 856 72 19 Feb 2025 706th MeWhenI 🇻🇦 856 81 23 May 2023 707th ovs-code 🇩🇪 855 133 8 Jul 2024 708th KatieLG 🇬🇧 854 115 25 Sep 2022 708th emgordon154 854 115 17 Jan 2025 710th MeWhenI 🇻🇦 854 145 28 Mar 2025 711th DialFrost 🇸🇬 853 50 24 Oct 2023 712th ovs-code 🇩🇪 853 83 1 Jul 2024 713th eshilo-draper 853 91 4 Sep 2022 713th ericlangedijk 🇸🇮 853 91 23 May 2023 713th KatieLG 🇬🇧 853 91 30 Apr 2024 713th Mikey-Beep 🇬🇧 853 91 3 Sep 2024 717th eshilo-draper 853 137 4 Sep 2022 718th ovs-code 🇩🇪 852 85 11 Dec 2023 719th yeminghan2021 852 99 3 Feb 2025 720th Shanethegamer 🇺🇸 851 83 4 May 2022 721st 386asm 🇺🇸 851 86 9 Apr 2023 722nd Frowny 850 38 5 May 2022 722nd stackofbears 850 38 14 Mar 2025 724th o0lit3 🇺🇸 850 54 22 Jun 2023 724th Natanaelel 🇸🇪 850 54 10 Feb 2025 726th typeswitch-dev 🇵🇹 850 75 22 Jul 2023 727th frosster 850 76 12 May 2023 727th kyleclaassen 850 76 20 May 2023 727th RockOfStone 850 76 17 Mar 2024 727th NickTheEASDude 🇺🇸 850 76 7 May 2024 727th Antibrain0 850 76 8 Nov 2024 732nd Yewzir 🇧🇪 849 65 9 Oct 2023 732nd MeWhenI 🇻🇦 849 65 10 Oct 2023 734th MeWhenI 🇻🇦 849 92 10 Oct 2022 734th Betuaredead 849 92 5 Jan 2023 736th Shanethegamer 🇺🇸 849 99 27 Apr 2023 737th SirBogman 🇺🇸 848 55 5 May 2022 737th xiBread 🇺🇸 848 55 6 May 2022 737th 4hg 🇺🇸 848 55 24 Aug 2022 737th DialFrost 🇸🇬 848 55 1 Jan 2023 737th error256 848 55 4 May 2024 742nd JayXon 🇺🇸 847 56 9 May 2022 743rd sean-niemann 🇺🇸 847 79 23 Oct 2024 743rd DialFrost 🇸🇬 847 79 25 Oct 2024 743rd emgordon154 847 79 27 Oct 2024 743rd stefangimmillaro 847 79 28 Oct 2024 747th azka1368 847 138 23 Nov 2023 747th Schmitt-Very-Cool 847 138 19 Jul 2024 749th MeWhenI 🇻🇦 846 26 25 Aug 2022 749th AlephSquirrel 846 26 6 Jan 2023 Prev 676–750 of 3,015 Next