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 675th iakolzin 861 98 26 May 2022 675th Betuaredead 861 98 5 Jan 2023 675th oceko 861 98 19 Feb 2024 675th dokutan 861 98 17 Mar 2024 675th cuzdav 861 98 4 May 2025 681st MeWhenI 🇻🇦 860 154 10 Oct 2023 682nd GrayJoKing 🇦🇺 859 56 15 Jan 2024 682nd AlephSquirrel 859 56 21 Jan 2024 684th Setvizan 859 62 12 Jan 2023 684th GreenBeansAgainstVeganism 859 62 13 Jan 2023 684th arctouch-cristiannevianna 859 62 3 Apr 2023 684th Corxldyphik 859 62 11 Apr 2023 684th Blockyheadman 859 62 1 Nov 2023 684th ollyspooner 859 62 22 Nov 2023 684th itserasmus 859 62 25 Jan 2024 684th Jacob385 859 62 13 Mar 2024 684th junkondo-jp 859 62 30 Jun 2024 684th ShiraJoseph 🇺🇸 859 62 1 Mar 2025 694th yzhs 🇩🇪 859 65 16 Jun 2022 694th rollershutter 859 65 9 Sep 2022 694th bac0id 859 65 26 Sep 2023 694th mossiegoat 859 65 10 days ago 698th ovs-code 🇩🇪 859 133 8 Jul 2024 699th crizin 🇰🇷 859 136 9 Sep 2023 699th TheZwierzLF 🇵🇱 859 136 16 days ago 701st ulucs 858 35 8 May 2022 701st bstrat 858 35 6 Jun 2024 701st wh3n3v3r 🇨🇿 858 35 18 Nov 2024 704th Andriamanitra 🇫🇮 858 67 26 Apr 2023 705th steffan-polygolf 858 73 23 Feb 2023 705th MWI-polygolf 858 73 6 Dec 2023 705th HumanoidCPU 858 73 7 May 2024 708th Steffan153 🇫🇮 858 78 4 Feb 2023 709th 5quiwyrm 857 52 4 Sep 2022 709th MeWhenI 🇻🇦 857 52 28 Jan 2023 709th Feniske 🇫🇷 857 52 7 Nov 2023 709th dcgjb 857 52 29 Jan 2024 709th JPRuskin 🇬🇧 857 52 7 Apr 2025 709th IISResetMe 857 52 7 Apr 2025 709th Ripick 857 52 17 days ago 716th MeWhenI 🇻🇦 857 145 28 Mar 2025 717th JRaspass 🇬🇧 856 41 4 May 2022 717th SirBogman 🇺🇸 856 41 4 May 2022 717th Natanaelel 🇸🇪 856 41 4 May 2022 720th GrayJoKing 🇦🇺 856 67 8 Feb 2025 721st jared-hughes 856 72 6 Jul 2022 721st Steffan153 🇫🇮 856 72 3 Jan 2023 721st MeWhenI 🇻🇦 856 72 7 May 2023 721st ListeriaM 856 72 22 Aug 2023 721st larcherMTT 856 72 5 Oct 2024 721st snyderek 🇺🇸 856 72 19 Feb 2025 727th MeWhenI 🇻🇦 856 81 23 May 2023 728th ovs-code 🇩🇪 854 83 1 Jul 2024 729th KatieLG 🇬🇧 854 115 25 Sep 2022 729th emgordon154 854 115 17 Jan 2025 731st DialFrost 🇸🇬 853 50 24 Oct 2023 732nd eshilo-draper 853 91 4 Sep 2022 732nd ericlangedijk 🇸🇮 853 91 23 May 2023 732nd KatieLG 🇬🇧 853 91 30 Apr 2024 732nd Mikey-Beep 🇬🇧 853 91 3 Sep 2024 736th yeminghan2021 853 99 3 Feb 2025 737th eshilo-draper 853 137 4 Sep 2022 738th ovs-code 🇩🇪 852 85 11 Dec 2023 739th MeWhenI 🇻🇦 851 71 13 Dec 2022 740th Shanethegamer 🇺🇸 851 83 4 May 2022 741st 386asm 🇺🇸 851 86 9 Apr 2023 742nd Frowny 850 38 5 May 2022 742nd stackofbears 850 38 14 Mar 2025 744th o0lit3 🇺🇸 850 54 22 Jun 2023 744th Natanaelel 🇸🇪 850 54 10 Feb 2025 746th typeswitch-dev 🇵🇹 850 75 22 Jul 2023 747th frosster 850 76 12 May 2023 747th kyleclaassen 850 76 20 May 2023 747th RockOfStone 850 76 17 Mar 2024 747th NickTheEASDude 🇺🇸 850 76 7 May 2024 Prev 676–750 of 3,076 Next