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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula 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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 673rd oceko 861 98 19 Feb 2024 673rd dokutan 861 98 17 Mar 2024 673rd cuzdav 861 98 4 May 2025 679th MeWhenI 🇻🇦 860 154 10 Oct 2023 680th GrayJoKing 🇦🇺 859 56 15 Jan 2024 680th AlephSquirrel 859 56 21 Jan 2024 682nd Setvizan 859 62 12 Jan 2023 682nd GreenBeansAgainstVeganism 859 62 13 Jan 2023 682nd arctouch-cristiannevianna 859 62 3 Apr 2023 682nd Corxldyphik 859 62 11 Apr 2023 682nd Blockyheadman 859 62 1 Nov 2023 682nd ollyspooner 859 62 22 Nov 2023 682nd itserasmus 859 62 25 Jan 2024 682nd Jacob385 859 62 13 Mar 2024 682nd junkondo-jp 859 62 30 Jun 2024 682nd ShiraJoseph 🇺🇸 859 62 1 Mar 2025 692nd yzhs 🇩🇪 859 65 16 Jun 2022 692nd rollershutter 859 65 9 Sep 2022 692nd bac0id 859 65 26 Sep 2023 692nd mossiegoat 859 65 5 days ago 696th ovs-code 🇩🇪 859 133 8 Jul 2024 697th crizin 🇰🇷 859 136 9 Sep 2023 697th TheZwierzLF 🇵🇱 859 136 12 days ago 699th ulucs 858 35 8 May 2022 699th bstrat 858 35 6 Jun 2024 699th wh3n3v3r 🇨🇿 858 35 18 Nov 2024 702nd Andriamanitra 🇫🇮 858 67 26 Apr 2023 703rd steffan-polygolf 858 73 23 Feb 2023 703rd MWI-polygolf 858 73 6 Dec 2023 703rd HumanoidCPU 858 73 7 May 2024 706th Steffan153 🇫🇮 858 78 4 Feb 2023 707th 5quiwyrm 857 52 4 Sep 2022 707th MeWhenI 🇻🇦 857 52 28 Jan 2023 707th Feniske 🇫🇷 857 52 7 Nov 2023 707th dcgjb 857 52 29 Jan 2024 707th JPRuskin 🇬🇧 857 52 7 Apr 2025 707th IISResetMe 857 52 7 Apr 2025 707th Ripick 857 52 12 days ago 714th JRaspass 🇬🇧 856 41 4 May 2022 714th SirBogman 🇺🇸 856 41 4 May 2022 714th Natanaelel 🇸🇪 856 41 4 May 2022 717th GrayJoKing 🇦🇺 856 67 8 Feb 2025 718th jared-hughes 856 72 6 Jul 2022 718th Steffan153 🇫🇮 856 72 3 Jan 2023 718th MeWhenI 🇻🇦 856 72 7 May 2023 718th ListeriaM 856 72 22 Aug 2023 718th larcherMTT 856 72 5 Oct 2024 718th snyderek 🇺🇸 856 72 19 Feb 2025 724th MeWhenI 🇻🇦 856 81 23 May 2023 725th ovs-code 🇩🇪 854 83 1 Jul 2024 726th KatieLG 🇬🇧 854 115 25 Sep 2022 726th emgordon154 854 115 17 Jan 2025 728th MeWhenI 🇻🇦 854 145 28 Mar 2025 729th DialFrost 🇸🇬 853 50 24 Oct 2023 730th eshilo-draper 853 91 4 Sep 2022 730th ericlangedijk 🇸🇮 853 91 23 May 2023 730th KatieLG 🇬🇧 853 91 30 Apr 2024 730th Mikey-Beep 🇬🇧 853 91 3 Sep 2024 734th yeminghan2021 853 99 3 Feb 2025 735th eshilo-draper 853 137 4 Sep 2022 736th ovs-code 🇩🇪 852 85 11 Dec 2023 737th Shanethegamer 🇺🇸 851 83 4 May 2022 738th 386asm 🇺🇸 851 86 9 Apr 2023 739th Frowny 850 38 5 May 2022 739th stackofbears 850 38 14 Mar 2025 741st o0lit3 🇺🇸 850 54 22 Jun 2023 741st Natanaelel 🇸🇪 850 54 10 Feb 2025 743rd MeWhenI 🇻🇦 850 71 13 Dec 2022 744th typeswitch-dev 🇵🇹 850 75 22 Jul 2023 745th frosster 850 76 12 May 2023 745th kyleclaassen 850 76 20 May 2023 745th RockOfStone 850 76 17 Mar 2024 745th NickTheEASDude 🇺🇸 850 76 7 May 2024 745th Antibrain0 850 76 8 Nov 2024 750th MeWhenI 🇻🇦 850 92 10 Oct 2022 Prev 676–750 of 3,071 Next