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 376th Betuaredead 899 60 5 Jan 2023 376th Yewzir 🇧🇪 899 60 12 Feb 2023 376th Steffan153 🇫🇮 899 60 23 Feb 2023 376th DialFrost 🇸🇬 899 60 30 Jul 2024 376th GolfingSuccess 🇬🇷 899 60 16 Oct 2024 376th sean-niemann 🇺🇸 899 60 7 Mar 2025 382nd Lydxn 🇨🇦 899 64 1 Apr 2023 383rd bwat2 899 130 5 May 2022 384th GrayJoKing 🇦🇺 898 71 10 Aug 2023 385th Kacarott 🇦🇺 898 79 13 Jun 2024 386th stefangimmillaro 898 92 24 Oct 2023 386th inverseLorentz 🇦🇺 898 92 27 May 2024 388th michael-pruglo 🇺🇦 898 94 5 Jul 2022 388th zygoloid 898 94 5 Aug 2024 390th shinh 897 52 29 Jun 2022 390th MeWhenI 🇻🇦 897 52 25 Jul 2023 390th pardouin 🇫🇷 897 52 12 Apr 2025 393rd Shanethegamer 🇺🇸 897 72 4 May 2022 393rd jared-hughes 897 72 4 May 2022 393rd Waffle3z 897 72 5 May 2022 393rd Blendi-Goose 897 72 16 Mar 2025 393rd edsrzf 🇳🇿 897 72 12 Apr 2025 398th marshallward 🇺🇸 897 83 10 May 2022 399th m-tkach 🇺🇦 897 90 7 Dec 2023 400th GolfingSuccess 🇬🇷 896 64 14 Dec 2024 400th MeWhenI 🇻🇦 896 64 24 Dec 2024 402nd m-tkach 🇺🇦 896 72 16 Oct 2022 402nd GrayJoKing 🇦🇺 896 72 22 Oct 2022 402nd emplv 🇱🇻 896 72 27 Oct 2022 402nd sean-niemann 🇺🇸 896 72 7 Mar 2025 406th DialFrost 🇸🇬 896 77 27 Feb 2025 407th Lydxn 🇨🇦 895 70 7 May 2022 408th Shanethegamer 🇺🇸 895 81 19 Dec 2023 408th edsrzf 🇳🇿 895 81 6 Jan 2025 410th MeWhenI 🇻🇦 894 63 5 May 2022 411th MeWhenI 🇻🇦 894 71 20 Aug 2024 412th Steffan153 🇫🇮 893 82 1 Apr 2023 412th sean-niemann 🇺🇸 893 82 12 Jul 2024 414th edsrzf 🇳🇿 893 83 14 Jan 2025 414th kg583 🇺🇸 893 83 14 Feb 2025 416th MichalMarsalek 🇨🇿 893 87 5 May 2022 416th Kloppermand 🇩🇰 893 87 7 Oct 2022 418th emplv 🇱🇻 893 110 5 May 2022 418th Shanethegamer 🇺🇸 893 110 21 Nov 2023 418th edsrzf 🇳🇿 893 110 28 Nov 2024 421st Lydxn 🇨🇦 892 69 12 Sep 2022 421st GrayJoKing 🇦🇺 892 69 12 Sep 2022 421st btnlq 892 69 24 Sep 2022 424th SiestaGuru 892 131 9 Jan 2023 424th HumanoidCPU 892 131 7 May 2024 426th SirBogman 🇺🇸 891 50 5 May 2022 426th nwellnhof 🇩🇪 891 50 3 Jun 2022 426th Lydxn 🇨🇦 891 50 15 Aug 2022 426th bitsandbeyond 🇳🇱 891 50 9 Aug 2024 426th Steffan153 🇫🇮 891 50 9 Aug 2024 426th DialFrost 🇸🇬 891 50 7 Apr 2025 432nd pabloferz 889 48 6 Mar 2024 433rd edsrzf 🇳🇿 889 78 26 Oct 2024 434th oeb25 889 93 16 May 2022 434th snobee 🇨🇦 889 93 8 Dec 2022 434th logvp 889 93 2 Jan 2024 434th elgan65536 889 93 5 Mar 2024 434th smartiel 889 93 12 Aug 2024 434th trist224 🇫🇷 889 93 12 Aug 2024 434th nullie 889 93 19 Dec 2024 434th lolgeny 889 93 22 Feb 2025 442nd JayXon 🇺🇸 889 149 21 May 2024 443rd GolfingSuccess 🇬🇷 888 95 5 May 2022 443rd Alex-x90 🇺🇸 888 95 4 Dec 2022 443rd Mandrzejy 🇵🇱 888 95 22 Mar 2024 446th KatieLG 🇬🇧 887 60 4 May 2022 446th ScottHamper 887 60 5 May 2022 446th Re-Adventures 🇮🇳 887 60 5 May 2022 446th 0x24a537r9 887 60 29 Jul 2022 446th stefangabos 🇷🇴 887 60 19 Aug 2022 Prev 376–450 of 3,058 Next