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 Hilbert Curve 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 Mandelbrot 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 Topological Sort Transpose Sentence Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala 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 Hilbert Curve 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 Mandelbrot 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 Topological Sort Transpose Sentence Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time 676th dieggsy 866 97 8 Oct 2024 677th Andriamanitra 🇫🇮 865 54 21 Jul 2022 677th jared-hughes 865 54 12 Sep 2022 677th OhmNomNom 865 54 7 Oct 2022 677th olleicua 🇺🇸 865 54 21 Jan 2024 677th LostSyntax21 🇬🇧 865 54 12 Mar 2025 677th AbrahamJLR 🇻🇪 865 54 4 Jun 2025 677th vishal-mohanty 865 54 25 Aug 2025 684th DialFrost 🇸🇬 864 64 10 Jul 2024 685th MeWhenI 🇻🇦 864 85 27 Jun 2022 685th Shanethegamer 🇺🇸 864 85 15 May 2023 685th albanian-laundromat 864 85 25 Aug 2025 688th Grrisly 864 114 25 Mar 2024 689th JayXon 🇺🇸 864 157 18 days ago 690th mtirado1 863 75 13 Aug 2022 691st ovs-code 🇩🇪 863 133 8 Jul 2024 692nd GolfingSuccess 🇬🇷 862 57 29 Aug 2025 693rd deadp4nda 🇩🇪 862 90 26 Apr 2024 693rd 123mjb 862 90 23 Jun 2025 693rd michelebastione 🇮🇹 862 90 24 Aug 2025 696th TylerBloom 862 96 22 Mar 2024 697th shellbertt 🇨🇦 862 98 9 May 2022 697th iakolzin 862 98 26 May 2022 697th Betuaredead 862 98 5 Jan 2023 697th oceko 862 98 19 Feb 2024 697th dokutan 862 98 17 Mar 2024 697th cuzdav 862 98 4 May 2025 697th timhaj 🇸🇮 862 98 20 days ago 704th steffan-polygolf 861 73 23 Feb 2023 704th MWI-polygolf 861 73 6 Dec 2023 704th HumanoidCPU 861 73 7 May 2024 707th Steffan153 🇫🇮 861 82 23 Feb 2023 708th yzhs 🇩🇪 860 65 16 Jun 2022 708th rollershutter 860 65 9 Sep 2022 708th bac0id 860 65 26 Sep 2023 708th mossiegoat 860 65 8 Jun 2025 708th RaBa21 🇭🇺 860 65 11 Jul 2025 713th GrayJoKing 🇦🇺 860 67 8 Feb 2025 714th GrayJoKing 🇦🇺 859 56 15 Jan 2024 714th AlephSquirrel 859 56 21 Jan 2024 716th Setvizan 859 62 12 Jan 2023 716th GreenBeansAgainstVeganism 859 62 13 Jan 2023 716th arctouch-cristiannevianna 859 62 3 Apr 2023 716th Corxldyphik 859 62 11 Apr 2023 716th Blockyheadman 859 62 1 Nov 2023 716th ollyspooner 859 62 22 Nov 2023 716th itserasmus 859 62 25 Jan 2024 716th Jacob385 859 62 13 Mar 2024 716th junkondo-jp 859 62 30 Jun 2024 716th ShiraJoseph 🇺🇸 859 62 1 Mar 2025 726th Andriamanitra 🇫🇮 859 67 26 Apr 2023 727th Steffan153 🇫🇮 859 78 4 Feb 2023 728th ulucs 858 35 8 May 2022 728th bstrat 858 35 6 Jun 2024 728th wh3n3v3r 🇨🇿 858 35 18 Nov 2024 731st JRaspass 🇬🇧 858 41 4 May 2022 731st SirBogman 🇺🇸 858 41 4 May 2022 731st Natanaelel 🇸🇪 858 41 4 May 2022 734th MeWhenI 🇻🇦 858 81 23 May 2023 735th 5quiwyrm 857 52 4 Sep 2022 735th MeWhenI 🇻🇦 857 52 28 Jan 2023 735th Feniske 🇫🇷 857 52 7 Nov 2023 735th dcgjb 857 52 29 Jan 2024 735th JPRuskin 🇬🇧 857 52 7 Apr 2025 735th IISResetMe 857 52 7 Apr 2025 735th Ripick 857 52 1 Jun 2025 742nd jared-hughes 857 72 6 Jul 2022 742nd Steffan153 🇫🇮 857 72 3 Jan 2023 742nd MeWhenI 🇻🇦 857 72 7 May 2023 742nd ListeriaM 857 72 22 Aug 2023 742nd larcherMTT 857 72 5 Oct 2024 742nd snyderek 🇺🇸 857 72 19 Feb 2025 742nd 5quiwyrm 857 72 29 Jun 2025 742nd TeodorDyakov 🇧🇬 857 72 8 Jul 2025 742nd xiaoyiming123 857 72 12 Jul 2025 Prev 676–750 of 3,338 Next